CCME November 2012

www.climatecontrolme.com

News

Hempel launches new solvent-free coating p10 facility in the Kingdom p15 Perspectives The green building conundrum p66 Focus: A close look at adhesives p54 DuPont helps nab illegal

refrigerant dealer p6

Empower urges developers

to adopt DC p9

Trane opens compressor renewal

Cooling towers: Making the right selection p58 D-Code: Seal out the pollutants p40 Spotlight Unclogging filters and mindsets p70 Plus: Marketplace, Comings&Goings

NOVEMBER 2012 SEE US AT THE

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Vol. 7 No. 11 | November 2012 04 from the editor

Pipeline of hope

happenings

contents

06 The region 22 At large 32 Marketplace

40 D-Code

Seal out the pollutants

A well-sealed, leak-free ductwork system ensures greater comfort and better IAQ, and a spray sealant helps achieve this, says Billy Prewitt.

54 FOCUS Sticking around

How are the companies in the adhesives industry dealing with the lingering economic crisis? What do they think of setting-up regionally based testing centres? How is the market appreciating product innovations and advancement in the sector? Jerome Sanchez reports.

66 PERSPECTIVE

The green building conundrum Saeed Alabbar discusses how modern buildings in the Middle East are actually less efficient than decade-old constructions, and suggests measures that need to be taken to address the problem.

58

42

COVER STORY

The clock

is ticking The onus is on everyone to halve GHG emissions by 2050. A report on Round 2 of Refrigerants Review.

perspective

Cooling towers

— making the right selection Cooling towers have gained in popularity and have become the standard heat rejection method, says Georges Hoeterickx, and gives several pointers to be kept in mind while choosing packaged-type cooling towers.

70

SPOTLIGHT

UNCLOGGING FILTERS AND MINDSETS Arguing that unclogging of filters plays a critical role in ensuring better Indoor Air Quality, Dr Iyad Al-Attar demonstrates why it is important to determine when and how clogging occurs.

November 2012

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3

from the

editor

Publisher Dominic De Sousa Managing Director & Associate Publisher Frédéric Paillé | fred@cpi-industry.com Editorial Director & Associate Publisher B Surendar | surendar@cpi-industry.com

PIPELINE OF

HOPE

COO Nadeem Hood | nadeem@cpidubai.com Contributing Editors Pratibha Umashankar | prati@cpi-industry.com Anoop K Menon | anoop@cpi-industry.com Business Development Consultant Stephanie McGuinness stephanie@cpi-industry.com

he lingering political tension involving Iran is of deep concern, to say the least.

Perhaps no other industry directly feels the effect of the tension as much as does the oil shipping industry. I got an understanding of the concern during the 5th Annual ME Ship Tech Conference, in mid-October in Dubai, particularly during an interview with Jamil Al-Ali, Manager Fleet Engineering Group, with the Kuwait Oil Tanker Company. Al-Ali said he hoped the situation could be defused and resolved in a peaceful manner, in order to avoid an escalation, which could have a negative impact on the region and a knock-down effect on the global economy. “We have to understand that 30-40% of the world’s oil passes through the Strait of Hormuz, so any tension in the region can take oil prices up and lead to double-dip recession,” he said, adding, “There is a certain level till which it is good if prices go up, but after that it is not sustainable for anyone.”

The UAE, in particular, has taken steps to bypass the Strait of Hormuz in the event of an escalation of tension. In July, the Abu Dhabi International Petroleum Investment Company opened a new 400-kilometre-long oil pipeline stretching from Abu Dhabi to Fujairah, which has allowed Abu Dhabi to export 70% of its crude oil through waiting tankers in the Gulf of Oman, whose waters lap Fujairah.

This move by Abu Dhabi served to ease the concerns of global oil markets in terms of being able to receive a portion of the crude oil from the emirate in a stable and secure manner – the new pipeline can transport 1.5 million barrels a day of crude.

While the strategic thinking on the part of the UAE is laudable, there is a need for a mechanism to ensure that oil and gas from the rest of the GCC also have a safe passage. With the exception of Saudi Arabia, which has a pipeline coursing through its land, from the eastern to the western province, there are no other alternative routes. In the event of an escalation, the impact on the economies of the region could be significant – to cite an example, Qatar entirely relies on the Hormuz waterway to transport its LNG – the bulwark of its economy.

Such talk of oil-geddon falls lightly on some of the powers that be, though, who say the possibility of disruption of supply through the Strait of Hormuz is unlikely, considering Iran needs the waterway just as much for its exports. But there always remains a ‘what-if’ danger. Even a flake of peril does not sit down well with a world besieged by a fragile economic recovery. Simply put, the thought of having to re-live 2008 is not a welcome one.

Design Genesis Salao | getty@cpi-industry.com Webmaster Troy Maagma | troy@cpidubai.com Database/ Subscriptions Manager Purwanti Srirejeki purwanti@cpi-industry.com Advertising Enquiries Frédéric Paillé: +971 50 7147204 fred@cpi-industry.com Stephanie McGuinness: +971 55 6503757 stephanie@cpi-industry.com USA and Canada Kanika Saxena Director (North America) 25 Kingsbridge Garden Cir Suite 919 Mississauga, ON, Canada L5R 4B1 kanika@cpi-industry.com Tel/fax: +1 905 890 5031 Euro Zone and UK Sicking Industrial Marketing Wilhelm Sicking 45130 Essen - Emmastrasse 44 Tel: +49 (0)201-779861 Fax: +49 (0)201-781741 Andreas Sicking 59872 Freienohl - Kurt-Schumacher-Str. 16 Tel: +49 (0)2903-3385-70 Fax: +49 (0)2903-3385-82 sicking-media@email.de • www.sicking.de China Sean Xiao Hui China Business Media Group Room 403, Block 17, Wuyimingzhu, No 6 Jinshan Road, Fuzhou, Fujian, 350008, China Tel: +86 591 8386 3000

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Empower urges developers

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new Trane opens compressor solvent-free coating Perspectives renewal p10 facility in the Kingdom green building Cooling towers:The p15 um p66 Making the rightconundr Focus: A close look selection p58 at adhesives p54 Spotlight Unclogg D-Code: Seal ing filters and mindse ts p70 Plus: Marketp out the pollutants p40 lace, Comings&Going s

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happenings the region

DuPont helps nab illegal refrigerant dealer

More than 3,000 counterfeit refrigerant cylinders seized in the UAE

D

uPont Refrigerants worked with law enforcement in the UAE, playing an instrumental role in a seizure of counterfeit DuPont SUVA refrigerants in Sharjah, the company revealed in a press communiqué. The company explained the sequence of event: It became aware of the counterfeit refrigerant goods sold and stored in Sharjah

by Sunrise Air Conditioning Spare Parts Trading Co, through a preventive programme of the Dubai Department of Economic Development (DDED).

Inspectors from the Sharjah Department of Economic Development (SDED) reportedly alerted a DuPont representative in the UAE of

a third-party complaint filed against Sunrise. Based on this, DuPont and the SDED jointly worked to determine if the refrigerants being stored by the trader and bearing the company’s brand name were genuine DuPont refrigerant products. When investigation confirmed that they were, indeed, counterfeit refrigerant cylinders carrying the trademarks DUPONT™ and SUVA® as well as trademarks of another major

manufacturer, a seizure was conducted and resulted in confiscation of 3,100 units of fake DuPont SUVA 134a refrigerants and 6,000 units of a fake product from another manufacturer. The seized goods were stored and guarded at Sunrise facilities by guards employed by DuPont, under the authority of local law enforcement.

Sunrise was subsequently required to a pay a fine to the UAE Government for the

crime, and was required to make additional payments to cover costs related to storage of the seized goods, painting and repackaging the cylinders without the DuPont trademarks and to exporting them as unbranded refrigerant. The trader is no longer in business, the report added.

DuPont revealed that it has developed a multi-faceted programme to address counterfeit refrigerants, including education of customs officials and deployment of overt and covert tactics to ensure the authenticity of its refrigerants.

Speaking against the backdrop of the events, Greg Rubin, Global Business Manager, DuPont Refrigerants, said: “We are approaching the problem of counterfeit refrigerants very aggressively. Counterfeit refrigerants can cause significant business impact, including equipment failure and, more importantly, can cause physical harm or loss of life.”

ELIPS wins ISO 9001:2008

Claims it follows best environmental criteria to meet the requirements of DC and O&G sectors

E

mpower-Logstor Insulated Pipes Systems (ELIPS), a pre-insulated pipe manufacturing facility in Jebel Ali, has announced that it has won the ISO 9001:2008, in recognition of its high quality and environmental standards in the field of fittings for pre-insulated pipes. The factory had been earlier awarded the same certification for the production of preinsulated pipes, it added.

Ahmed Bin Shafar, Chairman of

6

Climate Control Middle East November 2012

ELIPS, commenting on winning the certification from Lloyd’s Register Quality Assurance, said: “It is a matter of great pride to win this worldwide recognition in our working standards for the fittings of the pre-insulated pipes from such a reputed global organisation.”

ELIPS, which claims that it follows best environmental criteria to meet the requirements of district cooling services and oil and gas across the

Middle East, asserted that it leverages expertise of Logstor, which has a 49% stake, and is reportedly the world’s leading pre-insulated pipe manufacturer with more than 50 years of experience and 10 factories worldwide, serving customers in more than 50 countries.

November 2012 www.climatecontrolme.com 7 Phone: +971 4 8159 300 | Email: info@daikinmcquayme.com | Website: www.daikinme.com

happenings the region

Emicool closes 10-year refinancing

Says syndicated and bilateral loans of AED 793 million reaffirms success of its business model

E

mirates District Cooling (Emicool) has announced the successful signing conclusion of AED 793 million for a 10-year Islamic refinancing structured term loan in Dubai. This was negotiated with the existing seven banks that had sanctioned a bridge loan in 2008, which matured in May 2011, the announcement added.

According to Emicool, Mashreq Al-Islami, Islamic Banking Division of Mashreq was the Mandated Lead Arranger and the coordinating bank for the transaction. In addition, it was also the Security and Facility Agent, with other participating banks being, Dubai Islamic Bank, Union National Bank, Commercial Bank of Dubai, Standard Chartered, Emirates NBD and Emirates Islamic Bank. The transaction was secured by a Corporate Guarantee from Dubai Investments PJSC and Union Properties PJSC in equal proportion, it said.

Speaking about clinching the loan, Abdul Aziz Bin Yagub Alserkal, Chairman, Emicool, said: “This milestone reaffirms the success of our business model. The financial boost will help realise our long-term expansion goals, such as investing in infrastructure, which will assist to offer quality products at competitive prices to capture a significant share of the market.”

Adib Moubadder, Managing Director, Emicool added: “The maximum capacity of the plants serving the developments in Dubai is 300,300TR, of which the installed capacity is 213,300TR. For the past two years, Emicool has won the gold award conferred by the International District Energy Association (IDEA) for the most buildings connected or committed to service beyond North America. The company is currently working on its plan to expand operations to KSA and Qatar.”

Amr El Nokaly, Head of Commercial Banking at Mashreq, commented, “We are very pleased to play a major role in this deal as the MLA and contribute to its closure.”

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Climate Control Middle East November 2012

Hira Industries organises seminar in Doha Presents latest products aimed at international MEP contractors, consultancies and direct clients

H

ira Industries, owner of the Aerofoam, Diamond Pipe Supports and Aeroduct brands, organised a technical seminar at Crowne Plaza Hotel, Doha, Qatar, on October 10. Announcing this, Hira Industries said that the goal of the seminar was to present the latest developments related to insulation products, pipe supports and ducting accessories that the company manufactures. All the products were QCD approved, the announcement added.

The seminar was reportedly mainly aimed to address MEP consultants from private companies and from government bodies. Hira Industries claimed that more than 150 attendees from major consultancies, international MEP contractors and direct clients participated in the seminar and showed interest in the new solutions it proposed.

According to the company, the products presented included its insulation range – Aerofoam. The range comprised Aerofoam XLPE, the cross-linked, closed-cell polyethylene insulation and Aerofoam NBR, the rubber insulation, which are typically used in HVAC-related applications. The two products are manufactured entirely in the UAE, with Aerofoam XLPE being produced in the only polyethylene foam extrusion factory present in the Middle East region, the company explained.

The Hira seminar in Qatar

Empower urges developers to adopt DC Promotes it as a cost-effective and environment-friendly method of cooling

A

ccording to a news release, Emirates Central Cooling Systems Corporation (Empower), urged real estate development companies participating at Cityscape Global 2012, the real estate event held at the Dubai International Convention

and Exhibition Centre, to put district cooling on top of their priority list, especially since these companies have reportedly emerged from the industry downturn and are now fully geared to launch new projects.

Ahmad Bin Shafar, CEO of Empower, believes that

these companies have a major responsibility to disseminate the district cooling usage as their technical teams are fully aware of the direct benefits of district cooling on these companies, end-users, the economy and society as a whole, taking into consideration the threat of the climate change that the world is facing, the news release elaborated.

Bin Shafar, reportedly pointed out that district cooling technology saves operational

and maintenance costs and preserves natural resources, making it the natural choice for use in real estate projects, especially, the newly launched ones. He added that a few of the Arab countries had opened the doors for the technology, with the UAE leading the way.

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November 2012

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happenings the region

Hempel launches new solvent-free coating

Company claims that environment-friendly Hempadur 35900 offers high temperature resistance

H

empel, an independent supplier of decorative, marine and protective coatings, has announced the launch of Hempadur 35900, a solvent-free tank interior coating, which it claims has temperature resistance of up to 93°C. A twocomponent solvent-free, high-build, amine-cured phenolic epoxy, Hempadur 35900 holds a NORSOK approval and has already been approved by

some of the world’s largest oil and gas companies, making this coating extremely important to Qatar, which has 25.4 billion barrels of proven oil reserves, it added.

The company stressed that it expected major O&G companies in Qatar, especially those having ongoing maintenance programmes, to use the 100% solvent-free coating and leverage the benefits it offers.

The manufacturer pointed out that being a low volatile organic compound (VOC) coating, Hempadur 35900 is an environment-friendly product. Additionally, it enables faster job completion and time and cost saving due to fewer number of coats required; easy application at high film thickness; and its abrasion-resistant quality. Besides, a glossy smooth coating surface makes it easy to clean and offers enhanced corrosion protection, the company said, and added that the coating would increase the long-term value of customers’ investments by extending product lifetimes, reducing maintenance and application costs.

According to Hempel, the product is the result of over seven years of extensive research and development and is based on market needs.

CEBC and Ambata map clean energy projects in MENA region

Survey reveals more renewable energy projects underway than expected

C

ontrary to the perception of some commentators that it was struggling to gain traction, over 150 renewable energy projects are underway in the Middle East and North Africa region, many more than previously thought by industry-watchers in a region, which has abundant oil and gas resources.

Revealing this in a news release, the Clean Energy Business Council (CEBC) and Ambata, a clean technology investment and advisory firm, added that they propose to give a boost to the renewable energy industry in the MENA region.

Claiming that they had mapped the region’s renewable energy projects for the first time, which ranged from small, off-grid projects of several kilowatts (enough to power a mobile phone tower) to utility-scale plants,

10

Climate Control Middle East November 2012

for the first time, the two entities said that they intend to update the map regularly to track the progress of the industry.

“The previous general lack of awareness made policy-makers and capital providers feel the industry was smaller and, hence, riskier than it actually is,” said Aaron Bielenberg, CEO and Founder of the CEBC. “In fact, this is a growing industry, which is vital both from an environmental point of view and for ensuring the long-term sustainability of the economic growth this region has enjoyed.”

Daniel Zywietz, Managing Director of Ambata Capital Middle East, Deputy Chair of the CEBC and the project’s director, added: “The renewables industry is in a similar position today to the oil industry 100 years ago – it

took a long time to gain market share from coal, but today, oil is one of the world’s primary sources of energy.

Renewables will follow a similar trajectory.”

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happenings the region

QSTec to meet Qatar’s 2014 solar energy target

Will generate 1.8 gigawatts of power by 2014

F

ollowing the announcement by the 2012 UN Climate Change Conference Organising Sub-Committee Chairman HE Fahad Mohamed Al-Attiya, that Qatar will generate 1.8 gigawatts (1,800 megawatts) of solar power by 2014 as part of the vision to generate 20% of the country’s total energy requirements through

renewable sources, Dr Khalid Klefeekh Al Hajri, Chairman and CEO of Qatar Solar Technologies (QSTec) has said in an announcement that as one of the key organisations dedicated to building an industry of solar energy in Qatar, QSTec would be supporting the promise made and meet the necessary requirements.

“QSTec is a strong

advocate of the 2030 Qatar National Vision and will seize every opportunity that will turn this vision into a reality – beginning with the manufacture of polysilicon, the key ingredient of the world’s most efficient solar panels, and expanding through to the manufacturing and installation of solar modules and solutions,” he claimed. He added: “It is

Lowe opens new office in Dubai

UAE base “an absolute must”, says refrigeration rental firm

S

aying that an office in the UAE is now vital for any business wanting to maintain a truly international presence, Lowe Refrigeration, a UK-based short-term refrigeration rental company, has announced opening its new Dubai office on October 24. It reported that the level of demand from companies based or working in Dubai made opening the new office an easy decision.

Mark Wood, Lowe’s General Manager in the Middle East, said: “We’ve worked in Dubai and the Middle East for many years as the official refrigeration contractor to major food exhibitions and events. But with Dubai’s exhibitions, events and corporate hospitality industries going from strength-to-strength, it’s now an absolute must for us to have a permanent base here. The sheer number of requests that we’re

12

Climate Control Middle East November 2012

getting from people in Dubai wanting our services meant that transporting fridges as and when they were needed was no longer practical.”

According to Lowe, the new office will develop the work the company was already doing in Dubai’s exhibition sector, while also providing refrigeration hire and storage solutions to hotels, retailers and events in the Gulf region. It previously shipped refrigeration equipment to Dubai from its distribution centres in Europe and Singapore, and an increased demand for its services prompted the decision to open a Dubai office, it added.

Lowe, which has its headquarters in Northern Ireland, claimed that it has been renting fridges to clients around the world for more than 30 years, including supplying refrigeration to the London 2012 Olympic Games, Formula 1 races and major golf tournaments.

worth mentioning that solar energy will complement Qatar’s conventional sources of energy. QSTec’s Polysilicon plant in Ras Laffan Industrial City, when fully expanded, will have the capacity to produce 6.5GW of solar power. QSTec will continue to collaborate and partner with key local and international organisations to shape the future of the solar industry throughout Qatar and the region.”

Carrier records healthy growth Reportedly enjoys large share of refrigeration equipment market

A

ccording to a news release by global HVAC&R Publication, JARN which appeared in its Headline News (Volume 151, September 2012), Carrier, which handles the air conditioning and refrigeration business of UTC Climate, Controls and Security Systems, has enjoyed a large share of the retail refrigeration equipment market in Europe, including equipment for supermarkets, hypermarkets, bigbox stores and other goods and discount stores. JARN reportedly interviewed Philippe Delpech, President of the company’s EMEA division, who informed the publication of its recent activities and trends in the European and Middle Eastern refrigeration markets.

happenings the region

DSCE discusses energy efficiency at 19th meeting Focuses on roadmap to reduce energy consumption in Dubai by 30% by 2030

H

.H. Sheikh Ahmed bin Saeed Al Maktoum, Chairman of Dubai Supreme Council of Energy (DSCE), chaired the Council’s 19th meeting at the office of the Supreme Council of Energy located at Dubai Petroleum Establishment, which was attended by H.E. Saeed Mohammed Al Tayer, Vice Chairman of the Council, and Nejib Zaafrani, Secretary General and CEO, along with fellow council members.

Announcing this, DSCE revealed that the Council discussed topics related to

H.H. Sheikh Ahmed leads the discussion

energy efficiency, such as gas and power, solar power, energy conservation and demand side management initiatives. The Council also discussed a study to develop a roadmap for reducing energy consumption in

Dubai by 30% in 2030, which will be managed and supervised by DEWA and international consultants, the announcement added.

According to DSCE, Dubai Petroleum, a member of the Supreme Council, presented

Utico and Shanghai Electric launch clean-coal power plant AED 1.5-billion project expected to generate 270 MW power and capture 80% carbon

U

tico Middle East, the GCC-based private full service utility and solutions provider, and Shanghai Electric, a coal power company, has announced a joint collaboration to establish what they claim to be the world’s greenest coal-fired power plant at KhorKhowir in the RAK Maritime City.

An agreement to this effect was signed in Ras Al Khaimah on October 3, between Rashid Mehran Al Baloushi, Chairman of

14

During the signing ceremony

Utico Middle East, and Han Youtian, Vice Chairman of Shanghai Electric, in the presence of high-ranking

Climate Control Middle East November 2012

authorities from the Ras Al Khaimah government, a joint communiqué said.

The venture was reportedly

its ongoing energy-efficiency drive. Its representatives also made a presentation on how it intends to use solar power for water heating in its building as well as using LED lights. Dubai Petroleum, reportedly, aims to cut its water and electricity consumption by 10% to 15% this year.

“To achieve the Dubai Integrated Energy Strategy 2030, we discussed the regulation of solar power in Dubai from a production and supply perspective. the first phase of the Mohammed bin Rashid Al Maktoum Solar Park is in progress to produce 13 megawatts, which is due to be operational by the end of 2013.” said Al Tayer. “The Council reviewed the Dubai Integrated Gas Strategy 2030, the board members approved the first phase of Gas reserve strategy policy,” he added after the meeting.

inked on the sidelines of the recently held Global IWPP (Independent Water & Power Plant) Summit, which was inaugurated by His Highness Shaikh Mohammed bin Saud Al Saqr Al Qassimi, Crown Prince of Ras Al Khaimah.

His Highness Shaikh Saud bin Saqr Al Qassimi, Supreme Council Member and Ruler of Ras Al Khaimah, stated that the prime focus of the project should be on being environment-friendly and aiding the development and economic growth of the region, while creating jobs and opportunities for the people, the communiqué said. Supported by the Ras Al Khaimah government, the AED 1.5 billion-venture is expected to be completed in 2015 and will generate 270

Trane opens compressor renewal facility in the Kingdom

Similar overhauling facilities operating in UAE and India

F

ollowing the launch of its refurbishing services in Dubai, UAE, and Naroda, India, Trane, a brand of Ingersoll Rand, has announced opening its first screw compressor renewal facility in Riyadh, Kingdom of Saudi Arabia.

Situated on the Eastern Ring Road of Riyadh, the new facility is staffed with factory-trained personnel who use only original parts and processes to ensure that refurbished units are returned to the expected level of performance and reliability associated with its technology, Trane claimed.

MW of power when fully functional, it added.

According to the two entities, the project will utilise 100% carbon capture technology as nominal design capacity and 80% at operational point, which will involve the establishment of, what they claimed was worldclass power generation facilities and environment protection standards and related utility infrastructure. This project, they said, would be able to lower power tariffs, thus benefiting consumers and providing support for economic growth.

Richard Menezes, Managing Director and Executive Vice Chairman of Utico Middle East,

“Trane Helical Rotary (screw) compressors are extremely reliable and we always want to provide our customers with the assurance that, in the unlikely event of failure, we would be able to get their chiller back into useful service with the minimum of delay,” said Imad Kaba, Sales Director for Trane in the Middle East and Africa. “The opening of this new Trane facility will significantly reduce associated cost, time and stress in handling major compressor issues.”

Mustapha Nakouzi, General Manager for D-Cool, the

services division of Dallah Trading Co, the authorised Trane distributor in Saudi Arabia, added: “This is, indeed, a great occasion, as it will enable us to provide even higher levels of service and support to the extensive Trane customer base in the Kingdom. We believe that the renewal service will meet the expectations of our customers, because a Trane warranty is applied to every compressor that is overhauled here.”

Kingdom Tower, Riyadh

described the project as a milestone development that would enable Ras Al Khaimah to meet its utility requirements and showcase the emirate’s commitment towards clean, green energy resources. “Clean coal-fired energy is acknowledged to be even cleaner and greener than gas-reliant energy," Menezes said.

"By deploying Shanghai Electric’s superior energyefficient and tried and proven technology for the plant, we are confident of reducing Flue Gas Desulphurisation, carbon dioxide emissions almost to zero and setting the benchmark for cleaner energy to the world, and not only to the UAE.”

November 2012

www.climatecontrolme.com

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happenings the region

TA seminar spotlights HVAC system optimisation Dubai seminar focuses on the optimising of hydronic distribution in an HVAC system; the occurrence of fouling in evaporators; and the importance of efficient, correctly sized and commissioned pressure maintenance systems.

By our correspondent

T

A Hydronics on October 17 conducted a technical seminar in Dubai that highlighted the implications of HVAC system optimisation on global energy consumption and also focused on energy savings in different HVAC system areas individually and at savings across the system as a whole.

Introducing the seminar, Bassam Al Awar, the Managing Director (Middle East, Africa and India) for TA Hydronics, spoke of the company’s three areas of strength, namely pressure maintenance, thermostatic control, and hydronic balancing and control.

Dr Jean-Christophe Carette, the Head of the Hydronic College of TA Hydronics, was the keynote speaker.

He led the seminar, in which he addressed energy savings in broad and specific terms; the occurrence of fouling in evaporators; and the importance of

efficient, correctly sized and commissioned pressure maintenance systems.

Saying that 40% of the world’s energy consumption was used in buildings and that 50% of that was by HVAC systems, Dr Carette added that there were different approaches to shave the consumption.

Insulation and double glazing represented one approach and could lead to larger energy savings, but the payback period was very long, Dr Carette said. On the other hand, he added, the use of new technologies and system approach of hydronic design constituted an appealing option and came with a shorter payback time. A third

approach, he said, was to avoid human interference with sophisticated systems, which included continuous educating of tenants in a facility. “All three areas are interconnected, though,” Dr Carette said. “You cannot hope to achieve with only one.”

If the first two approaches were to be adopted, he said, the building modification required adaptation or modernisation of the HVAC installation to take into consideration heat gain or loss. And if the second and third approaches were to be adopted, when modifying

Carett-

speak

• Lowering the chiller water supply temperature by 1°C decreases the efficiency by four per cent.

• A lower chiller return (inlet) temperature can impact the COP significantly, reducing it by up to 15%.

• When comparing a non-balanced with a balanced system, electrical pumping cost can be reduced by 40%.

• In cooling systems, the “fouling factor” (dirt deposit) can affect chiller efficiency by up to five per cent and pressure drop by up to 10%. an HVAC installation, one must take into account the capability of optimising a building HVAC system (optimising the hydronic distribution in the HVAC system) to reduce its energy consumption by 30%, he said. That, he added, would depend on the type of building, though.

Speaking on the issue of fouling in evaporators, Dr Carette said that whenever Continued on page 18

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Climate Control Middle East November 2012

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happenings the region

there was talk on energy efficiency, fouling was not something that came up for discussion, though it was important. Elaborating on micro-fouling – scaling, corrosion fouling and particulate fouling – Dr Carette spoke of the issue of improper pressurisation loads.

“If you don’t do pressurisation right, you create an engine for corrosion,” he said.

Giving an example of an apartment (with nominal power consumption of 280kW) in Nanjing, China, Dr Carette demonstrated the effect of fouling on performance, with a beforecleaning and after-cleaning comparison.

Dr Carette, then, elaborated on how fouling in evaporators also affected the pressure drop of the evaporator, owing to a reduction of cross-section due to thickness of deposit layer and to an increase of surface roughness.

Speaking, then, on the importance of efficient, correctly sized and commissioned pressure maintenance system, he said it could not be overemphasised.

Saying that there was energy saving in a hydronic distribution regime, Dr Carette highlighted how pumping costs represented the main energy cost in hydronic distribution.

Photo courtesy www.aramcoexpats.com

TA seminar spotlights HVAC system optimisation (from page 16)

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Another way to save costs in hydronic distribution would be to work with the flow, Dr Carette said. It was important to obtain a variable flow installation correctly adjusted inflow. Also, he added, it was important to reduce the required pump head by design.

To that effect, he said, it was important to target a minimising of pumping costs.

Solutions would be, he said, to take advantage of the latest pump technology (electronic variation, synchronous motor) and to select pumps so that they operated in their optimum efficiency area.

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happenings the region

FM Expo report reveals challenges in the sector Facility managers need to think ahead to keep up with new legislation and incentive schemes

E

nergy management legislation and the shift towards efficient lighting are typically the top two issues the facilities management (FM) industry in the region has to contend with, according to a report by Zawya, commissioned by FM Expo 2012.

Facilities managers are

constantly being faced with the challenge of meeting energy management legislation and adhere to incentive schemes set by utility providers, causing them to have to think significantly ahead, as it becomes more costly to update FM systems in aged buildings, the report elaborated. Additionally, due to the recent ban of incandescent lamps, regional

FM personnel have sought energy conservation through compact fluorescent lamps (CFPs) and light-emitting diodes (LEDs), it added.

According to the report, over the past 10 years, the Middle East has witnessed a rapid increase in building developments and construction activity. Due to the region’s continuous dependency on oil as a

primary source of energy, and its depleting resources, the region has been in search of new ways to conserve energy and work towards sustainability.

Paving the way towards a more sustainable future is part of the educational programme available at FM Expo 2012, being held from November 5 to 8, which will help shape and regulate the regional FM industry, with speakers including Naser Al Marzooqi, head of facilities management, City Zone, Masdar City and Cathy Yang, Vice President, Developer and owner, Taipei Financial Centre Corporation, the organisers claimed.

P3 Srl to participate at The Big 5

Company says its making its inaugural independent appearance at the show, but is not a new entrant to the region

P

3 Srl, manufacturer of preinsulated ducting materials, with its avowed experience of 50 years in the air conditioning industry, and a network in 80 countries worldwide, has announced its participation at The Big 5 Show in Dubai, this year. This will be its direct participation from Italy after the end of a franchise agreement with a local partner, the announcement added.

The company said it would present a wide range of solutions for different applications, which included indoor, outdoor, high hygiene with antimicrobial and self-cleaning treatment. In addition, the company intended to introduce to the GCC region its new P3ductal careplus solution. P3 highlighted that the innovative product developed by its R&D team allows a high level of hygiene. The company

20

Climate Control Middle East November 2012

will also showcase the first self-cleaning and antimicrobial air duct panels, and added that thanks to its nanotechnologybacked liquid glass coating, the dust slides away due to the air-flow inside.

Elaborating on “the green heart� of its P3ductal system with a focus on air quality, the company claimed that it had created Hydrotec, the patented technology of expansion of the polyurethane foam with water only, which has reportedly obtained the international EPD, Environmental Product Declaration.

P3 also claimed that the performance of the product had been reconfirmed by tests performed with the University of Padua, Italy, which showed that the deposits of solid particles on P3ductal careplus solution was 50% less compared to its regular counterpart and

90% less compared to traditional sheet metal ducts.

The company listed eco-sustainability, fire safety, safety in case of earthquakes, maximum air seal, thermal insulation, energy and cost saving, air quality and hygiene, lightness, low noise, durability and construction ease as its strong points, when compared to similar products in the market.

Terming the GCC a key market, the company revealed that it intends to exclusively offer its 'Made in Italy' products to the region and work closely with professionals to raise the bar and drive improvement of regional standards.

P3 will be present at The Big 5 Show at Hall 5, Booth 5A231. Further information is available at: www. p3italy.it.

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Hörmann to showcase thermal insulation product

Company says it will display energyefficient door solutions at The Big 5

H

örmann Middle East, industrial, commercial and residential door manufacturer, has said that it will have one of the largest stands at The Big 5 this year, with a range of products that enhance security and energy efficiency. It will display the latest technology and designs in entrance doors, internal doors, fire doors and smoke-tight door assemblies, industrial doors, loading technology, frames and windows, it added.

The ThermoPro doors that claim to improve thermal insulation by up to 30% in addition to providing energy efficiency and solutions for food and dairy companies would focus on the HVACR sector.

Darius Khanloo, Managing Director, Hörmann Middle East, elaborated: “We are excited to participate at The Big 5 for the third consecutive year with one of the largest stands at the show this year. We will be showcasing many of our latest products at the show, especially new custom-made solutions for logistics companies and food and dairy companies.

All Hörmann fire-rated steel doors are approved by the UAE Civil Defense, and we are also in the process of obtaining approvals from Civil Defenses in Qatar and Oman.”

Hörmann will be present at Stand L120 in the German Pavilion, at Zabeel Hall in the Dubai World Trade Center.

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happenings at large

Palsgaard Mexico Smaller diameter to harness solar copper tubes energy gaining ground Aims to become CO2 neutral by 2020 and set an example

Focus of research findings presented at ACRA in Xi’an

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The Palsgaard team

T

he Mexican subsidiary of Palsgaard, the manufacturer and supplier of emulsifiers and stabiliser blends for the food industry, has announced installing a new photovoltaic solar panel system to produce enough electricity to cover 85% of the facility’s energy consumption, thereby helping Palsgaard achieve its ambitious goal of becoming CO2 neutral in 2020. The Danish embassy in Mexico as well as representatives from the local government reportedly participated in the inauguration of the project held on September 12, the announcement added.

According to Palsgaard, it has previous record of being recognised for its environmentally friendly initiatives – in 2009 and 2011, it was awarded the Industria Limpia Clean 22

Industry certificate by the Mexican Federal Attorney of Environmental Protection.

This, Palsgaard said, is given to companies that on their own initiative take up a series of activities towards the protection of the environment.

Speaking against the backdrop of the inauguration, Miguel Hidalgo, Managing Director of the Mexican facility, said: “This will result in a positive impact by minimising external energy requirements and decrease CO2 emissions, hence reducing our carbon footprint.

Despite this, there aren’t many similar projects in our area, and we would like to set an example for the industry.”

Climate Control Middle East November 2012

maller diameter copper tubes are gradually replacing copper tubes of diameter 7 mm and more owing to the possibility of reducing the use of materials and refrigerant volumes. Announcing this, the International Copper Association (ICA), an organisation for promoting the use of copper worldwide, explained that the experiments were performed at the Institute of Refrigeration and Cryogenics at Shanghai Jiao Tong University (SJTU).

The new research work on smaller diameter copper tubes was presented at the Sixth Asian Conference on Refrigeration and Air Conditioning (ACRA) in Xi’an, China, held from August 26 to 28, ICA said, and elucidated the finer points of the research: The heat transfer characteristics of a round-tube, plate fin coils with 5 mm copper tubes and the effects of fin pitch, fin size and inlet relative humidity were measured on 11 different coils. It was found that the effects were more obvious for coils with tube diameters of 5 mm compared to coils with tube diameters of 7 mm or more. Fin efficiencies were calculated for partially wet fins as well as for fully wet fins and a correlation was developed to predict the air-side heat transfer of a fin-and-tube heat exchanger coil, and the correlation agreed well with the experiments.

In a related news release, ICA reiterated that there was a renewed interest in copper as a coil material for ACR products. Confirming this and speaking on behalf of MicroGroove, Nigel Cotton said, “It’s an exciting time for researchers to work on new ecofriendly core designs, made possible by MicroGroove copper tubes.”

Seawater AC project for Honolulu

Plan faces challenges as it may have environmental impact

A

ccording to a news report which appeared in HVAC&R Industry, ASHRAE’s eNewsletter, dated October 9, a plan is under way to make use of seawater for running air conditioning in Hawaii’s capital city, Honolulu’s downtown buildings.

Seawater air conditioning,

or SWAC, is a system that uses a deep cold water reservoir, for example, an ocean or a lake, for cooling building interiors. In this case, the project envisages taking deep ocean water through pipes to cool a section of Honolulu, the report said and added that the plan involves driving about 100 piles approximately 0.4

kilometres to 0.8 kilometres offshore. However, the project is reportedly facing challenges, as the activity may cause vibrations, which in turn, might affect marine life, including dolphins and whales.

In the light of this, Honolulu Seawater Air Conditioning has had to get a permit from National Marine Fisheries Service to cover the inadvertent taking or harassment of marine mammals, the report elaborated. In addition, it appears that the company will be required to have marine mammal scientists on-site to facilitate monitoring the impact the project might have on several species of animals.

Most of the work for the project, the news report revealed, will involve

microtunneling below streets in the city’s business and financial district. The only above-ground structure will be a cooling tower, it added.

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happenings at large

INTERPOL launches NEST initiative National Environmental Security Task Force to create law enforcement, customs, environmental and other specialist agencies; of relevance to the refrigeration industry

I

NTERPOL has announced officially launching its National Environmental Security Task Force (NEST) initiative at the 21st INTERPOL Asian Regional Conference held in Amman, Jordan, before 150 officials from 40 countries. It was reportedly launched by David Higgins, Manager of the

INTERPOL Environmental Crime Programme.

The initiative aims to establish a common platform for national compliance and enforcement responses, so as to enhance both national and international efforts on ensuring current and future environmental security, the announcement highlighted.

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Engineering

Climate Control Middle East November 2012

Energy

Environment

In this respect, the initiative will see INTERPOL call upon its 190 member countries to structure and equip themselves with the necessary tools in a multi-agency manner by working towards the establishment of NEST's law enforcement, customs, environmental agencies, prosecutors and other specialist agencies, the agency said.

According to the announcement, following the launch of the initiative, the Chinese delegation attending the conference invited Higgins to China in October to take part in the country’s first National Environmental Security Seminar – the first crucial step to the eventual formation of NEST. As a follow-up, INTERPOL has invited all stakeholders to visit its Web site for further information, as well as to have a first look at the newly released guide on forming such task forces.

The agency said that the guide for sustaining NEST was made possible mainly with support from the United States Agency for International Development (USAID), The Norwegian Agency for Development Cooperation (NORAD), the World Bank’s Global Tiger Initiative (GTI) and the United Kingdom Department for Environment, Food and Rural Affairs (UK DEFRA).

“The role of INTERPOL’s

National Central Bureau in the NEST is vital for international outreach, as NCBs provide a global and mandated enforcement communications channel through INTERPOL’s I-24/7 system, as well as access to an international network of 190 member countries,” said Higgins. He added that the threat to environmental security represented a genuine threat to national security, undermining political, economic and community stability, since the environment, biodiversity and natural resources were the very things countries need to protect, and that criminals are depleting, exploiting and destroying it. “We must ensure our environmental security now and into the future,” he concluded.

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Office representatives in the Middle East: ALGERIA Wilaya Tipaza JACTECO Algeria +00213-66116003 jacteco-alg@hotmail.com BAHRAIN Manama Awal Products Co. Spc +97317813535 malcolmg@shaheengroup.com EGYPT Cairo Contact +20227941517 hwaly@contact-egypt.com IRAQ Ankawa FJ Electrical Engineering and General Trade +964662252917 fjtrdg@emirates.net.ae

JORDAN Amman Sources For Engineering Supplies Co Ltd +96265525255 sources@sourcesjo.com KAZAKHSTAN Almaty TOO Zhana Tau Stroy +7727-262-8986 main.lca@gmail.com KUWAIT Ras Salmiya Gulf Facilities General Trading +96525757630 samjau@gft-kw.com

PAKISTAN Karachi Khan Brothers +922134526002 / 3 / 4 / 5 amankhan@khanbrothers.net

TURKEY Istanbul ATC Air Trade Centre Ltd Sti +902122834510 atc.turkey@airtradecentre.com

QATAR Doha Gulf Facilities Trading Co WLL +97444501152 milad_gft@hotmail.com

UNITED ARAB EMIRATES Abu Dhabi Faisal Jassim Trading Company LLC +97126219772 m.abulwafa@fjtco.com

SAUDI ARABIA Al Khobar Al Saadeh Trading Establishment +96638674958 alsaadeh@alsaadeh.com

LEBANON Beirut Air Distribution Center S A R L +9611353823 sales@adclb.com

SAUDI ARABIA Jeddah Al Saadeh Trading Establishment +96626620886 alsaadeh@alsaadeh.com

OMAN Muscat Khimji Ramdas - A/C Division +96824852760 s.vishnu@kr.om

SAUDI ARABIA Riyadh Al Saadeh Trading Establishment +96614780643 alsaadeh@alsaadeh.com

UNITED ARAB EMIRATES Dubai Western Technological Equipments +97142994124 wtech@emirates.net.ae YEMEN Sana’a Al-Rashed Trading Centre +9671680770 rashed7@y.net.ye

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Climate Control Middle East November 2012

at large

EIA urges EC to stand firm against pro-HFC lobby Reacts to European Commission’s draft proposals for review of EU F-Gas Regulation

L

eaked documents from the European Commission’s review of the EU F-Gas Regulation has revealed a much-needed shake-up in the way Europe regulates hydrofluorocarbons (HFCs), powerful global warming gases hundreds to thousands of times more potent than carbon dioxide (CO2).

Sharing this information in a news release, the London-based Environmental Investigation Agency (EIA), claimed that the proposed new HFC regulation would help stimulate Europe’s green economy by banning HFCs in large commercial and industrial refrigeration systems.

According to EIA, other sectors highlighted as suitable candidates for bans by a previous Commission-funded study are omitted – including stationary air conditioning, foams and fire suppression.

These sectors are covered by an economy-wide phase-down, which intends to gradually reduce HFC consumption to 21% of current levels by 2030, the agency added.

However, EIA said that it questioned the ambition of the phase-down and the lack of clear market signals for companies providing climate-friendly alternatives in the growing sector of air conditioning.

“We welcome the draft proposal as a step in the right direction, but it clearly doesn’t go far enough and could easily be seriously diluted if the lobbyists currently working

behind the scenes for the HFC industry get their way,” said EIA Senior Campaigner Clare Perry. “The Commission’s own analysis shows that most sectors can ban HFCs in new equipment by 2020 or earlier, and there is, therefore, no reason not to propose bans in all these sectors. There are many more low-hanging fruits to be picked.”

The news release further revealed that while NGOs and companies producing HFC-free alternatives are backing sectoral bans, the HFC industry, as represented by the European Partnership for Energy and Environment (EPEE), has made clear its opposition to any bans – not surprisingly, it prefers a gradual phase-down that will allow the flexibility for industry to continue marketing and profiting from HFCs. In this context, EIA Campaigner, Alasdair Cameron said: “EPEE is an organisation dominated by producers of HFC-based equipment and HFCs themselves and it will hardly favour banning HFCs. To paraphrase Einstein, the problems we face in the F-Gas Regulation will not be solved by the same minds that created them. This revision is a chance to make up for lost ambition, and the only way to do that is to ban these super greenhouse gases when no longer needed. We are looking to the Commission to stand firm against the scaremongering of the HFC industry and its lobbyists, not cave into it as the world watches.”

happenings at large

Chillventa 2012 records high exhibitor turnout Organisers declare the event a success

W

ith exhibitor record of 915 international companies, about 29,000 trade visitors, a high degree of internationality and a new Chairman named for the Exhibition Committee, Chillventa, the annual international refrigeration, air conditioning and heat pump trade show was a success, claimed the organisers. The event was held this year from October 9 to 11 at the Nürnberg exhibition centre.

According to the postevent news release, a new Chairman of the Chillventa Exhibition Committee was elected as scheduled – HansJoachim Socher, General Manager at Walter Meier, replaced Heinrich Reuß.

Socher, in an initial brief statement, said: “I am looking forward to my new tasks as Chairman of the Exhibition Committee. It is the industry’s most important international platform. I and my colleagues on the committee will be available to help and advise the organisers.”

Richard Krowoza, Member of the Management Board of NürnbergMesse, said that he believed Chillventa and Chillventa Congressing ended successfully, with more than 200 congress participants and the international share of visitors as high as 55%.

He stressed that the mood in the refrigeration, air

GEA makes a mark at Chillventa Presents new solutions for refrigeration engineering

A

t the Chillventa 2012, the international trade fair for refrigeration, air conditioning, ventilation and heat pumps, held from October 9 to 11 in Nuremberg, 28

Climate Control Middle East November 2012

conditioning, ventilation and heat pump sectors appeared to be good once again, which was confirmed by both exhibitors and visitors.

Thomas E Watson, President of ASHRAE, endorsed this view when he said that the positive energy was not only evident in the exhibition halls and stands but was also noticeable in the key figures of the exhibition.

The next Chillventa will take place in the Exhibition Centre Nuremberg from 14 to 16 October 2014, the organisers revealed.

GEA Refrigeration Technologies presented a range of products. Announcing this, the company gave a sampling of the products showcased: Open GEA Bock compressors; new, optimised semi-hermetic GEA Bock CO2 compressors; New GEA mexxFlow Bock compressors; GEA Grasso compressors; and GEA Grasso V range.

Highlighting a few of the products, the company claimed that the Open GEA Bock compressors feature long-life components and are smaller and lighter than the piston compressors available until now, with comparable displacements of 240 to 280 m³/h. The F range, therefore, offered a varied performance spectrum with displacements of approximately 10.5 m³/h (F2) to 281 m³/h (F18).

The new range of medium-sized GEA Grasso compressors, which were also

presented at the show were designed for application in refrigeration technology for chillers or heat pumps, the company said.

The highlights of the range were the Type MS and an internal continuous Vi control system that allows adapting its internal volume conditions to external plant pressure conditions, GEA explained.

According to the company, also focusing on the ongoing development in the valve plate system, it introduced mexxFlow valve plate system. This increased the efficiency of the compressors by around 15 %, thanks to the flow-optimised double lamellar ring design of the valve plate in combination with a cylinder head especially adapted to the valve plate, thus enabling open as well as semi-hermetic GEA Bock compressors achieve new records in terms of efficiency, the company claimed.

Clariant’s heat transfer fluids make Chillventa debut Company’s new corporate branding also unveiled at event

S

aying that they offer customers an “all-round carefree package”, including performance checks, sample analysis at no charge and technical consulting as part of the service provided, the Swiss chemicals group, Clariant presented its Antifrogen line of heat-transfer fluids at the Chillventa for the first time. It participated in the 2012 edition, held from October

9 to 11 at the Messe in Nürnberg, Germany. Announcing this, the company claimed that its Antifrogen products were versatile heat transfer fluids based on glycols (Antifrogen N, Antifrogen L and Antifrogen SOL HT) and/or potassium formate (Antifrogen KF).

All types offer freezing protection and reliably protect cooling and heating systems against corrosion, it added.

According to Clariant, it also unveiled its new corporate branding to the HVAC industry during the trade show.

Commenting on the company’s participation at this year’s Chillventa, Roberto C Formisano, Head of Sales Special Applications, Clariant, said that it was a great opportunity for the refrigeration, air conditioning, ventilation and heat pump industry to get acquainted with Antifrogen.

Ziehl-Abegg showcases products at Chillventa Says that its optimised fans and controls elicited interest

Z

iehl-Abegg, dealing in ventilation and drive technology and matching control technology, participated at this year’s Chillventa in Nürnberg, and claimed that its ZAplus fan system attracted the attention of attendees. Revealing this in a news release, the company explained that ZAplus is an axial fan in a compact unit made of high-strength composite material in which the motor and controller are integrated. The material permits new shapes, it added.

“The interest in our new, energy-saving products has become huge,” said Peter Fenkl, Chairman of the Board of Ziehl-Abegg. “Since our ZAplus fan system beats the EU Directive ErP 2015 with the classic AC motors, with modern EC motors, we can be significantly better than required by the EU. That provides the device manufacturers certainty even beyond 2015 (ErP 2015).”

The ZAplus saves an average of 150 Euros per year, according to recent measurements and is quieter than comparable models and facilitates significant air reserves,” the company claimed, and added that its improved medium-pressure fan, the MAXvent, also garnered interest during Chillventa.

November 2012

www.climatecontrolme.com

29

comings&goings Honeywell S&C names new VP-GM Remi Volpe to look after Sensing and Control’s EMEA

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GEA Refrigeration Technologies

Climate Control Middle East November 2012

Andrew Kirton aims to re-establish Novenco as the premium brand for car park and tunnel ventilation

A

ndrew Kirton has joined Novenco as Sales Director for the Middle East region, effective September 1, 2012. He will be based in Dubai and shall be providing technical support to Novenco’s local distributors, consultant engineers and mechanical contractors. He Andrew Kirton is looking to enhance Novenco’s presence throughout the GCC and to enter the rapidly expanding Saudi Arabian market. Moreover, Kirton is aiming to introduce new products to the regional market, in line with the effort to improve energy efficiency and to lower the carbon footprint. Recently, Novenco launched a new range of axial fans, which according to the company, has groundbreaking efficiencies of up to 90%. The new fans, added the company, are suitable for installation in a diverse range of ventilation systems and can also be retrofitted into existing installations to lower energy consumption and reduce noise levels.

Kirton’s previous assignments were with York Air Conditioning (now JCI) and McQuay in the UK, and with JCI in the UAE. Most recently, he served as the General Manager for Nuaire in the Middle East.

Originally starting as a consultant engineer in 1979, Kirton has 33 years of experience in the industry. He has been living in Dubai for the last nine years with his wife and two daughters.

Andrew is a keen triathlete.

He can be contacted at aki@novencogroup.com or at +971 50 349 1404.

CCME Archives

oneywell Sensing and Control (S&C) has announced naming Remi Volpe Vice President-General Manager for its Europe, Middle East and Africa region (EMEA), and in this role, will strengthen the region’s alignment to S&C’s global business goals.

Volpe brings with him more than 20 years of Remi Volpe Honeywell experience, and prior to joining S&C, served as the EMEA Marketing Director-buildings and CentraLine business leader for Honeywell’s Environmental & Combustion Controls (ECC) business, the announcement added.

“EMEA is an important region for Honeywell S&C, and what happens here has a global impact,” said Tony Sugalski, President S&C. “I am confident that Remi is well-prepared to provide the ongoing leadership we need in EMEA and to grow our business with current and new customers.”

Volpe, on his part, said: “S&C continues to invest in industryleading new products and platforms. So, one of our first initiatives will be to help support these new technologies with increased application engineering, marketing and sales efforts in EMEA.”

Novenco names new Sales Director for Middle East

Midea Group appoints Board Chairman He Xiangjian takes charge

A

ccording to a news release published on September 2012

by The Global HVAC&R Publication, JARN, on August 25, the Midea Group announced that its founder, He Xiangjian, had resigned from the position of Board Chairman and had taken the position of Board Chairman of Midea Holding, the controlling shareholder of Midea Group. Among the new board members of the Midea Group, Fang Hongbo took the position as the Board Chairman, Huang Jian was assigned as President, and Cai Qiwu, Yuan Liqun and Huang Xiaoming as Senior Vice Presidents, the news release added.

marketplace

This section contains regional and international products information

Regal Beloit

Leeson range: waterproof stainless motors

S

aying that they are built to meet the demanding requirements of the food and beverage processing, pharmaceutical and packaging industries, Regal, the UK-based manufacturer of electrical and mechanical motion control products, has announced launching Leeson Duck range of extreme waterproof stainless motors for washdown environments. Their encapsulated construction is designed to withstand severe washdown and sanitisation regimes, the company added.

The manufacturer lists the following product features and advantages: n Its advanced thermal management allows it to dispense with the traditional array of cooling fins found on ordinary industrial motors, leaving a smooth clean outer surface free of potential dirt and bacteria traps. n The design team has also completely eliminated the use of through-bolts and developed a screw-on conduit box cover to further reduce the potential for trapping contaminants on or within

the motors. n For a further line of defence, O-ring sealed openings are provided on the conduit box covers and rotor/cartridge covers. n The Q-Car rotor/cartridge seal system gives quick access to the interior of the motor. n A Protech bearing isolator is used for the output shaft seal and a rigid cast base to make the motors rugged enough for the most demanding applications. n Like all Extreme Duck motors, the new

range is supplied with high-performance inverter-rated insulation as standard to provide extra protection and long life, whether used in a switched environment or inverter driven.

Enclosure protection is IP65. n The range covers three-phase, 208230/460 volt requirements at a 0.25 to 2kW power rating, with other variants from the range, such as White Duck and Premium Stainless Duck available for higher power ratings and other IEC frame sizes, including a brake motor version.

Automatic Filters Inc

Tekleen automatic backwash filters

S

aying that contaminants circulate through heat exchangers, chillers, and compressors, making the cooling system pump harder, thus lowering the efficiency of the system, Automatic Filters Inc, a US-based company has announced introducing its new line of Tekleen ABW (automatic backwash) filters.

The manufacturer claims that the filters eliminate contamination caused by airborne dust, sand, pollen, algae, and pipe scales, thus reducing maintenance and operations costs.

According to Automatic Filters, the

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Climate Control Middle East November 2012

product will be on display in booth 3626 at the 2013 AHR Expo, being held from January 28 to 30, 2013.

The manufacturer lists the following product features and advantages: n Tekleen self-cleaning water filters provide the solution where dirty water is a problem. n The filters operate on line pressure alone.

The self-cleaning process is triggered by a pressure differential and is accomplished in seconds without interrupting the main flow. n They are useful for the HVAC industry,

especially in cooling tower applications. n They come in stainless steel construction at carbon steel prices.

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marketplace

This section contains regional and international products information

Lennox

Armonia range of water cassettes

S

aying that they offer high control flexibility and easy maintenance to match various applications, such as light commercial building, offices and shops, Lennox has introduced its Armonia range of water cassettes.

The company claims that extended technical and design development has led to achieve the highest level in terms of product performance, silent operation and control possibilities.

The manufacturer lists the following product features and benefits: n They come in seven different models – four models are available in 600x600mm to fit on to standard module false ceilings and three models are available in 800x800mm. n Each model can be delivered in two-pipe, two-pipe+electrical heater, and four-pipe systems. The two-pipe system is equipped with one, two or three rows of coil according to the size. The four–pipe applications come with one+one or two+one rows of coils. But the company can also offer a version optimised for cooling with enhanced cooling coil and less capacity in heating. n The float switches come with centrifugal pump supply as standard with the unit. n The units can also be delivered fitted with two or three-way valves. n The fan mounted on anti-vibrating supports is extremely silent, thanks to wing profile blades with a shape that reduces turbulence, increases efficiency and reduces noise. n The cooling capacity is 1.3 to 11kW n Comes with six-speed electric motors as standard. But the company can also provide the product with an e-Drive version.

This means that EC motor (brushless) with inverter card is fitted on to the unit. The motor can be, then, driven directly with 1-10V signal to allow continuous air flow variations. n The range facilitates electric consumption of less than 50% compared to AC motors. n The system is fully compliant with the Electromagnetic Compatibility Directive. n Two air outlets on the side of the units facilitate connection to separate supply air outlets and can provide air to distant areas of a room or even to a different room. n The company also offers a wide range of remote or infra-red controls, master/slave, and with communication capability. n They are equipped with adjustable air distribution louvres on each side. n Made from standard white ABS, RAL 9003, they are aesthetically attractive. They can also be made available in metallic diffuser for 600x600mm dimension to fit into a false ceiling standard module without overlapping parts. n The range is EUROVENT-certified.

Schneider Electric

Acti 9 high-performance modular system

S

chneider Electric, dealing in energy management, announced the launch of Acti9, which it said was a complete final distribution system that provided load monitoring and control. The launch was part of a region-wide roll out across the UAE, Oman, Kuwait and Qatar, the announcement added.

The manufacturer lists the following product features and advantages: n Acti9 combines basic control with optimum protection. n As it provides reinforced insulation on its miniature and residual current circuit breaker ranges, it offers high level of safety. n Combined with its Class 2 front face, where surface-to-internal clearances are more than twice the industry standard, it guarantees the downstream circuit is always safe, regardless of overvoltage conditions, wear or operator experience and easy to maintain. n With flexible and robust Modbus communications, and pre-

34

Climate Control Middle East November 2012

fabricated wiring for instant, error-proof connectivity, it saves 40% of time spent on control wiring. n Its real-time data routed from panels and circuits allows customers to fine-tune their electrical loads to reduce costs, allocate costs and manage energy. n The system auto-adapts to customer parameters, so that it can integrate quickly and adjust to any future requirements. n Other Acti 9 components, such as the integrated control circuit breaker Reflex iC60, remote control auxiliary RCA, automatic recloser auxiliary ARA, energy meters, contactors, and impulse relays work seamlessly with the entire modular system, making it suitable for the requirements of a wide variety of energyefficiency applications. n It allows for efficient building management, eliminating downtime and increasing business competitiveness. n All products are made from 100% recyclable and recoverable materials, and are completely environmentally friendly.

marketplace

This section contains regional and international products information

GEA

Searle condensers

R

evealing that reorganisation of the production process has now improved the manufacture of its larger condensers – with lengths up to 12 metres – GEA has introduced Searle condensers, which the company claims offers structural design with greater stability for large-dimensioned units.

The manufacturer lists the following product features and benefits: n The side walls of these condensers are fabricated in one piece, which contributes to the stability required for condensers of such large sizes. n Despite this gain in stability, the unit enclosure has a reduced weight. n The housing has been optimised to reduce the resistance to the flow of air, which in turn, lowers energy required by the fans. n A large selection of fans is available, providing an optimal choice for matching the heat exchangers in the system, which leads to effective heat exchange with low power consumption.

n Use of smaller copper tubes with a diameter of 12 mm compared to predecessor models has resulted in a lower unit internal volume, thereby reducing the system charge required.

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Climate Control Middle East November 2012

GREE Distributors: GREE-Afghanistan: Heritage FZE, MA03, Jebel Ali, UAE • Tel: 04 8837959-969 • Email:samimqay@hotmail.com | GREE-Bangladesh: Transcom Electronics Ltd • Sadar Road, Mohakhali, Dhaka-1206 Bangladesh • Email:ali.rayhan@tel.transcombd.com | GREE-Egypt: Tiba Manzalawi Group • Tel:+202-24022866 / 24022544 • Mob.+20122103086 • Email:Shady@tibagroup.me | GREE-Iran: NIA Air Conditioning Company • P.O Box : 3rd Floor, No. 262, Mirdamad Blvd, Tehran, Iran • Tel. +98 21 22227000 • Fax.+98 21 22223313 • Mobile +98 9121993146 • Email:sadri@nialimited.com | GREE-Iraq: Hardland Electromechanical Trading and Contracting, Golan Str. Shoresh, Erbil, Iraq-kurdistan • Tel/Fax: +964 662 246 153 • Mobile: +964 750 888 4486 • Email : ramez@hardland-co.com | GREE-Jordan: Izzat Marji Group • Tel:+962 (6) 55 202 84 Ext.220 • Mobile:+962 (79) 511 3 500 • Email:mohd.taha@marji.jo | GREEKuwait: Al-Babtain Air-Conditioning & Refrig. Co. w.L.L. • Tel: 00965 -1822666, Ext. : 111 • Mobile: 0096550088204 • Email:Ghassan@albabtaingroup.com.kw |

GREE-Lebanon: SOCIETE ACSONS S.A.R.L. • Tel: 00-961-4-710866 / 867 • Mobile: 00-961-3-421919 • E-mail: acsons@cyberia.net.lb | GREE-Libya: Mersin Inc. • Ali Bin Abi Taleb St., Bin Ashour, Tripoli, Libya • Tel. +218 21 3638031/ 3638016 • Email:nori.aradi@muzzn.com | GREE-Pakistan: DwP Technologies (Pvt.) Ltd • Mobile: +92-300 5000636 • Email:malik.tariq@dwp.com.pk | GREE-Palestine: Triple R for Trading and Marketing, Ramallah – Palestine • Mobile: 00970 5 69069069 • Email:rami@triple-r.ps | GREE-Qatar: Al-Ta’adhod • Salwa Road, Doha, Qatar P.O.Box: 11764 • Tel: 00974-44505016 • Email:amged@greeqatar.com | GREE-Syria: ALMARKAZI • Mobile:+963 11 53399333 • Email:musabagh@gmail.com | GREE-Saudi Arabia: Al-Asasyah (Basic Electronics Company Ltd) • P.O Box 1402-Al-Khobar 31952 • Tel:+966-3-8642222 • Mobile:+966505816972 • Email:info@al-asasyah.com | GREE-UAE: Nia Limited Co. • PO Box 13616, 701, NGI House, Dubai, United Arab Emirates • Phone: +97142952080 2080 • Email:zakir@nialimited.com • hariet@nialimited.com

D-Code

A Climate Control Middle East campaign on demystifying the world of ducting

Seal out the A well-sealed, leak-free ductwork system ensures greater comfort and better IAQ, and a spray sealant helps achieve this, says Billy Prewitt.

A high-performing

HVAC system delivers clean, fresh, conditioned air that keeps out minimal pollutants, allergens, irritants, and unpleasant

40

odours, and delivers the air at a comfortable, consistent temperature throughout the building. However, in order to perform at optimal efficiency, the ductwork system must be well sealed.

Until recently, the standard method of sealing ductwork

Climate Control Middle East November 2012

involved buckets, brushes, and a crew of workers. But now, spray sealants enable application from outside the ductwork, which makes the job quicker, less labourintensive and more effective.

Spray sealing fills up a joint, rather than “floating� the sealant over the joint, as a brush application would.

Further, spray sealing in tight spaces or crevices is not only possible but easy.

A sealing job that formerly required a crew of workers can be accomplished quickly, easily, and more effectively by an individual using an airless sprayer.

The sealant is applied at an increased rate, at a consistently high pressure, resulting in better coverage and tighter sealing. The need for re-working is virtually eliminated when spray sealing is used. Total labour and cost savings of up to 50% can be realised from the use of the spray application method to seal ductwork.

Effective sealing of an HVAC ductwork system readily translates into better IAQ in the building the system serves. This is because a well-sealed, leak-free ductwork system excludes undesirable elements like pollutants, irritants, and allergens, and

The sealant is applied at an increased rate, at a consistently high pressure, resulting in better coverage and tighter sealing can better maintain at a comfortable more uniform temperature the air it delivers throughout the building.

The delivery of clean, fresh, well-conditioned air in a building means a healthier, more comfortable indoor environment, which can readily translate into IAQ credits. Low-VOC spray sealants can also contribute to LEED credits.

The writer is Marketing Manager, Carlisle HVAC. He can be contacted at Billy.Prewitt@ CarlisleHVAC.com

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REFRIGERANTS

– from the deep freezer to the discussion table The onus is on everyone to halve GHG emissions by 2050.

A report on Round 2 of Refrigerants Review. Story by Pratibha Umashankar (with inputs from Jerome Sanchez)

42

Climate Control Middle East November 2012

THE FABRIC DUCTWORK LEADER

efrigerants Review Round 2 (RR2), held from September 24 to 25 at Jumeirah Beach Hotel, Dubai, and produced by Climate Control Middle East, was a sequel to RR1 which took place in March. If the first event thrust different types of refrigerants into the spotlight from a Middle East perspective and gave an international overview on the state of affairs in the sector, RR2 used that as the springboard and carried forward the process of assessment.

Attended by implementation and investigating bodies, government agencies, suppliers, service providers, and a heightened involvement of end-users, RR2 had an eclectic mix of regional and international speakers, who ensured that the topics under discussion – refrigerant assessment and rating, containment of refrigerants in district cooling plants,

toxicity concerns and counterfeit refrigerants adequately addressed DuctSox is–awere manufacturer of fabric air dispersion products for open and finished ceiling andarchitecture. comprehensively discussed.

Our fabric systems With are a cost effective, aesthetically attractive alternative to metal ductwork.

They are easy to install, material waste on the jobsite, and offer representatives from Oman, Kuwait, the have low • Natural refrigerants, many Greenthe advantages UAE andother Lebanon, focus, ofincluding course, recycled fabrics.

Key topics HCFCs, HFCs, HFOs

remained the status of refrigerants in the • Counterfeit refrigerants In addition to our traditional DuctSox fabric duct systems, our product line includes the GCC states. Speakers from beyond the specialty products, UFSox for under floor systems • and LabSox for critical District cooling environments/ plants region offered aUFSox global laboratories. areperspective. engineered distribution and dispersion systems that provide F o n t i s F u t u r a and M d containment BT of air uniform temperature and pressure for raised access floors. LabSox are unique M e d i u m I t a l i c THE REPORT dispersion systems that offer reduced discharge velocities for critical environments. refrigerants Hamdan Al Shaer, Director, Environment Our most recent innovation is SkeleCore, the solution to fabric duct droop!

Department, Dubaiproduct Municipality, SkeleCore is an internal system that provides cylindrical tensioning to keep formally inaugurated RR2framework and unveiled fabric ductwork round and taut at all times. It improves aesthetics by eliminating fabric the official logo. In his welcome address, followed up with awareness workshops sag/wrinkling, prevents T e x popping t i l e Aand i r disruptive D i s p emotion r s i o at n start-up, P r o d and u c tiss ideal for B Surendar, Editorial Director and applications requiring VAV or frequent cycling. and seminars for traders and industries Associate Publisher at CPI Industry, dealing with ozone-depleting substances recapped what had transpired in RR1 and (ODS) and alternatives, and through DuctSox-MENA outlined the RR2 agenda. In his keynote lectures and presentations for students address, AlUAE Shaer spoke about initiatives and the general public,Jordan he said.

Office: Saudi Arabi Office: Office: Dubai in response to the RiyadhHe highlighted the regulation Amman in the UAE had taken Tel: of +971 4 2602721 2926363 Tel: +962Stressing 6 5236400 challenges HCFC phase-out and theTel: +966 1place to tighten the sector.

Tel: +971 4 2602722 Fax: +966 1 2926363 Fax: +962 6 5236401 roadmap chalked out to phase-out HFCs, that the onus was on everyone to halve Fax: +971 4 2602723 KSA Mobile: +966 50 3217 814 as well.

The phase-out of CFC, which he greenhouse gas emissions by 2050 to Mobile No: +971 50 8440911 Email: Info@ductsox-mena.com said started in January 2010, had been limit global warming to two degrees,

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Go to www.thebig5.ae and click “REGISTER AND SAVE”

November 2012

www.climatecontrolme.com

43

report The speakers Ghaleb Abusaa CEO, en3 Solutions (The Three Factors Company) Bashar Abu-Sitta Sales Manager DuPont Middle East

Yaqoub Al Matouq Refrigeration Expert, Kuwait National Ozone Committee – Environmental Public Authority

Dr Anwar A Hassan Vice President, ESG Sales ASAC, Jeddah, Saudi Arabia; Vice President, Technology GBL&O, York, PA, USA Mazen K Hussein Head, National Ozone Unit Ministry of Environment, Lebanon

Hamdan Al Shaer Director, Environment Department Dubai Municipality

Yunho Hwang, Chairperson, International Institute of Refrigeration’s (IIR) Working Party on LCCP; Vice President, IIR Commission B1 and the Associate Director of the Center for Environmental Energy Engineering (CEEE), University of Maryland, USA

Tariq Al Yasi Chief Operations & Maintenance Officer Empower

Farhan Juratli LEED AP, Project Manager - District Cooling Plants & Network-Infrastructure Development and Planning Nakheel PJSC

Hatem Fouad Aly Representative, Head of Office, United Nations

Konstantinos Kontomaris Principal Investigator, Global R&D Leader, Commercial A/C and Renewable Energy

Office on Drug and Crime for the GCC Countries

Yehia Amr Engineering Director

Carrier - Turkey

Stephen O Andersen Director of Research Institute for Governance & Sustainable Development (IGSD), USA Ioana Botezatu International Partnerships Officer, Environmental Crime Programme, Interpol

Nicholas Cox Founder and Managing Director, Earthcare Products Limited, UK Hilde Dhont Section Manager Environment Research Centre, Daikin McQuay UK

he pointed out that despite an increased focus on low Global Warming Potential (GWP) alternatives, HFCs still dominated the

44

Fadi Hachem Design Manager DC PRO Engineering

Yaquob Al Matouq, Kuwait National Ozone Committee – Environmental Public Authority; Rajendra Shende, TERRE Policy Centre; and Dr M Ramaswamy, Royal Court Affairs Palace, Muscat, Sultanate of Oman

DuPont Fluorochemicals

M Ramaswamy Technical Expert Royal Court Affairs Palace Muscat, Sultanate of Oman

Defne Saral Head of Sales Fluorochemicals Europe, Middle East & Africa (EMEA Region) DuPont Chemicals & Fluoroproducts

Ahmed Al Jassmi, Narciso Zacarias and Hamdan Al Shaer of Dubai Municipality Rajendra Shende Former Director, UNEP Chairman, TERRE Policy Centre, India Narciso M Zacarias Principal Engineer - Air Pollution Environmental Planning & Studies Section, Environment Department Dubai Municipality Durwood Zaelke, President, Institute for Governance & Sustainable Development (IGSD); Co-Director, Program on Governance for Sustainable Development, Bren School of Environmental Science & Management, University of California, Santa Barbara, USA

market and that natural refrigerants, perhaps, largely due to exaggerated safety concerns, had not been addressed properly. “On the other hand,” he said, “a significant number of local and international

Climate Control Middle East November 2012

“Why does the mother company do two visions – one for Europe and the other for the region?”

— Yaqoub Al Matouq companies have decided to quietly adopt the concept of natural refrigerants, convinced that the technology was better, not only from a physical and environmental point of view but also with regard to the issue of safety, but without any compromise.”

This option, he said, was more important for cost-

conscious companies, because it improved energy efficiency and decreased servicing cost. In conclusion, Al Shaer reminded the audience that it was society's quest to contribute to the welfare of future generations through the phase out of ODS and through conversion to green and natural refrigerants.

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report Assessment and rating – who said what …

The first session on rating, was moderated by Narciso Zacarias.

Dr Yehia Amr highlighted the following points: • HFO123 has a lower GWP and is good as a car refrigerant, but is expensive for use for large systems as it costs eight to 10 times as much as R134A. In a study of the GWP in 2030, only two per cent would come from HFC, while 90% from direct CO2 emissions • In this light, energy efficiency is far more important than what kind of refrigerant to use • R47C, R410A and R134A are dominant refrigerants in the market • R47C is an A1 refrigerant, as it is near-zeotropic, made up of R32, R125 and R134A, is non-flammable and has a very low toxicity • R410A, an azeotropic refrigerant, is composed of R32 and R125, and is also classified as an A1 refrigerant • R154A is also an A1 refrigerant and has a high boiling temperature, ideal for ambient conditions like the Middle East Conclusion: Not every refrigerant will be ideal for every application. In selecting the appropriate refrigerant, we must consider efficiency, environmental impact to the ozone and global warming, the commercial availability of the refrigerants and equipment, safe operation, mainly flammability and toxicity, compliance with national and international safety codes, and capacity and tonnage.

Hilde Dhont highlighted the following points: • Daikin is developing R32 split air conditioners for residential to commercial range, because it is better suited to the applications; is non-ozone depleting;

46

Climate Control Middle East November 2012

Yunho Hwang, Chairperson, International Institute of Refrigeration’s (IIR) Working Party on LCCP, Vice President of IIR Commission B1 and Associate Director of the Center for Environmental Energy and Engineering (CEEE) of the University of Maryland, spoke about IIR’s efforts on Life Cycle Climate Performance (LCCP) evaluation for working groups. He began his presentation by spotlighting a few of the existing metrics used to evaluate the environmental impact of refrigerants suggested by several researchers and scientists, including Total Equivalent Warming Impact (TEWI), Life Cycle Climate Performance (LCCP) and Life Cycle Assessment (LCA).

As suggested by Haruo Onishi, Ryuzaburo Yajima and Shotaro Ito during the Earth Technologies Forum in April 2004, TEWI includes a few indirect emission effects related to energy consumption and servicing of the product, and direct emission effects related to leakage and non-recovered refrigerants at the end, he said. On the other hand, LCCP included the emission related to refrigerant manufacturing, and further, LCA included indirect emission for production and transportation, and emission due to equipment destruction in the end, he added.

He introduced IIR’s LCCP Working Party and stated that its main function was to assess the merits of different methods for evaluating the environmental impact of refrigerants and to produce implementation protocols for the methods. This, he said,

The melting point Revealed: The Himalayan Meltdown, co-produced by UNDP, Discovery Asia and Arrowhead Films, was screened during the event, which examines the melting of Himalayan glaciers and its effects on Bhutan, Bangladesh, China, India and Nepal.

included: • Collecting information on direct and indirect emissions of working fluids for various applications • Initiating within the IIR member states formation of similar working party-groups • Establishing LCCP evaluation methodology applicable for refrigeration and air conditioning systems • Evaluating how improvement options can affect result of assessment • Collating such information and disseminating it among working party members and IIR member states • Writing a booklet on the LCCP evaluation methodology

• Supporting

and promoting international collaboration and initiatives to improve the LCCP of refrigeration and air conditioning systems Hwang added that the LCCP Working Party also aimed to release consolidated listings and references for relevant information on direct and indirect refrigerant emissions, hold workshops and publish the proceedings and periodically update the Web page on the IIR Web site.

Rajendra Shende, Former Director of UNEP and Chairman, TERRE Policy Centre in India, then took the podium for his plenary discussion.

Giving a brief history of the Montreal Protocol, he

highlighted that now, more than ozone layer protection, it was the phase-out of HCFC which had been integrated into the context of climate change, energy efficiency and emissions of carbon dioxide.

In his opinion, the Montreal Protocol had become the single most successful environmental treaty, because the benefits outweighed the cost of action. Though Shende expressed disappointment over the failure in dealing with climate change, he said he remained hopeful, that RR2 could lead to another success story of mitigating climate change. He stressed that the benefits of phasing out HCFC today would have more effect on climate change than on ozone depletion in

about three decades from now.

According to a number of scientists and governments, we are already at the “tipping point� and that it may be impossible for us to come back to the preindustrial level of carbon dioxide concentration in the atmosphere, he pointed out. Limiting emissions, capturing and reusing CO2, cutting short-lived gases and deliberately destroying ODS and HFCs in banks were the solutions he suggested. He added that getting rid of HFCs with the right kind of alternatives would yield quick benefits and that Montreal Protocol would bail out Kyoto Protocol if HFCs were phasedout early.

Mazen Hussein, National Ozone Unit, Lebanon, and Rajendra Shende

Dr Anwar Hassan of JCI makes a point

November 2012

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report

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has superior energy efficiency; has smaller global warming impact compared to R410A; is acceptably safe due to mild flammability; production capacity is available because it is also a component of R410A; has 30% volume reduction compared to R410A; and may result in potential downsizing of equipment by about five to15% There is production capacity for R32, but distribution chain is not always ready Training, adequate service tools and manual are necessary for the service personnel Is sometimes handled as an “extremely flammable” gas, which it is not; there are limitations set by local regulations and standards Despite barriers, Daikin is looking to launch R32 in Japan and India; collaboration with other countries, such as Indonesia and Thailand, is also happening Konstantinos Kontomaris highlighted the following points: • There is an apparent tradeoff between very low GWP and nonflammability in a study of HFO-123yf and XP10 HFO-1234yf has a very low GWP of 4, but is classified as 2L due to its flammability On the other hand, XP10 is a non-flammable refrigerant, but its GWP is approximately 600.

DR-2 and DR-12 are developmental fluids with low GWP of 9 and 30, respectively, and non-flammable A study of DR-2 and DR-12 dispelled the myth that HFOs cannot be thermally stable HFO-1234yf, XP10 and DR-14 are being studied as potential candidates to replace HFC134a in chillers – results of the study points to XP10 as a potentially near drop-in replacement for

HFC-134a, requiring neither major equipment nor safety code modifications, while HFO1234yf is suitable for existing equipment with modifications, and DR-14 are most suitable for new equipment • DR-2 has a higher critical temperature than HFC-245fa – an HFC fluid largely considered for same application today – higher critical temperature is advantageous, because it allows harvesting higher temperature heat than HFC-245fa • DR-2 has lower vapour pressure than HFC-245fa and is a promising low-pressure fluid for commercial air conditioning and low temperatures heat utilisation • Refrigerant selection should consider total application impact, not just refrigerant attributes Nicholas Cox highlighted the following points: • UAE cannot simply follow European Union in phasing out ODS, as HFC refrigerants are less efficient in highambient temperature compared to ozone-depleting refrigerants that they replace • Have to select a refrigerant with high critical temperature for efficiency of air conditioning equipment • Formula for computing target critical temperature – add design condensing temperature to the difference between the evaporating and condensing temperatures; an on-the-spot calculation suggested target critical temperature for Dubai is 138ºC • Refrigerants that have critical temperature higher than 138ºC and normal boiling point of zero, are “ideal” refrigerants for Dubai.

They are R764 or Sulfur Dioxide, R630 or methylamine, and R600 or normal butane • Use of zeotropic hydrocarbon blends can improve efficiency of refrigeration systems by 25% by raising critical temperature

Climate Control Middle East November 2012

Dr Konstantinos Kontomaris, DuPont and Yunho Hwang, International Institute of Refrigeration’s (IIR) Working Party on LCCP

Nicohlas Cox, Earthcare Products; Konstantinos Kontomaris, Hilde Dhont, Daikin; Dr Yehia Amr, Carrier and Dr Anwar Hassan

“To handle ourselves, we should use our mind; to handle others, we should use our heart.” — Narciso Zacarias In conclusion, he spoke about the Climate and Clean Air Coalition (CCAC), launched in February 17 by US Secretary of State Hilary Clinton, comprising 42 countries, which aims to phase out shortlived greenhouse gases and accelerate HFC alternatives. Shende, then, initiated a panel discussion, with Yaqoub Al Matouq, Refrigeration Expert, Kuwait National Ozone Committee, with the Environmental Public

Authority in Kuwait, opening the discussion and touching upon the following issues: • Procedures to be followed by the GCC countries in phasingout HCFCs • Unification of standards and codes, adoption of single licensing system, unification of building standards and codes and modification of market standards and codes to meet the new alternative

• Adoption of one of the worldwide

standards modified to suit GCC states • Need to be informed about safe handling of equipment to address criticisms against alternatives • Need for a licensing system for technicians with skills to handle air conditioning systems Mazen Hussein, Head of OzonAction Group in Lebanon, who took the floor next, spoke about Lebanon’s efforts in weeding out ODS. Pointing out that the choice

national body for the implementation of the Montreal Protocol had established the National Ozone Unit, which was responsible for allocating the quotas, operating the permit system and supervising the implementation of projects. Oman was planning to provide training to the highly disorganised service sector to develop national standards and codes for monitoring R22 use, and for natural refrigerants,

hydrocarbons and ammonia, and to introduce a refrigerant management plan, he said.

He reported that recently, Oman had been ranked 67th out of 225 countries responsible for CO2 emission from the burning of fossil fuels. In the light of this, as per a Ministerial Decision the MECA had laid down rules for the management of climate affairs and streamlining the process

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of cement kiln depended on the type of ODS waste, processing capacity, technical capability, emission value, Lebanese standards and cost in Lebanon, he said that the projected emission parameters were far below limits, and not different from the current normal operating conditions without ODS destruction. He said that the estimated total cost of a cement kiln destruction facility was about US$300,000.

Dr M Ramaswamy, Technical Expert, Royal Court Affairs Palace, Muscat, Sultanate of Oman, in his presentation revealed that the Ministry of Environment and Climate Affairs (MECA), Oman’s

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      

 

  



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Ioana Botezatu, Interpol

Hatem Fouad Aly, UNODC

Mazen Hussein makes a point

“In Denmark, they phased out HFCs and have gone to CO2, which costs triple” – Albert Haykal

Members of the audience Konstantinos Kontomaris and Hilde Dhont

Bashar Abu-Sitta, DuPont

Defne Saral, DuPont

Fadi Hachem, DC Pro Engineering and Albert Haykal, Trane

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Climate Control Middle East November 2012

of issuing licenses to ensure that projects were engaged in reduction of carbon footprint, he said. He reiterated the importance of training of technicians in the highly disorganized service sectors, raising awareness within the service sector, the promotion of technology alternatives and the revival of the use of natural refrigerants. Speaking from the larger regional context and that of RR2, he concluded with a quote: “To come together is a beginning, to keep together is a progress, and to walk together is a success.”

Narciso Zacarias, Principal Engineer, Air Pollution, Environmental Planning and Studies Section, Environment Department of the Dubai Municipality, then took the podium. Summing up steps being taken

by Dubai towards the phase-out of HFC, he said that by 2013, all importers who had registered by June this year would be given a quota. He revealed that the Dubai Municipality had prepared technical guidelines for users and industries geared towards providing them knowledge and information about the phase-out of HCFCs. He briefly touched upon the Emirates Authority for Standardisation and Metrology (ESMA) forming a committee in 2011 and coming up with a rating system for air condition facilities, including window-type and split-type systems. He concluded his presentation by calling on the industry and manufacturers to come up with an ideal refrigerant, if at all it exists.

A lively panel discussion ensued, initiated by Shende.

The next session, moderated by Zacarias, covered the assessment and rating of refrigerants (for details, see box: 'Assessment and rating -- who said what...).

Anwar Hassan wrapped up Day One of RR2 with a talk on refrigerants of the future, from the point of view of Johnson Controls. He said that as the industry moved towards natural refrigerants and flammable synthetic options, training, education, and safety codes would become essential for universal adoption.

Dr Yehia Amr, carrying this thought forward, when Day Two’s session opened with a panel discussion. He pointed out that there was a common meeting

ground between Europe and the Middle Eastern region. “The requirement of high efficiency in the Western world and the requirements of highambient refrigerants in the Middle East is bringing us together; there’s a reconciliation there,” he argued.

(More on the discussion in Box: This is what they said …) “In Europe, for energy efficiency, they are using larger condensers for more efficiency. We have to, at the same time, work on

GWP, and the answer might be HFOs and blends. The sooner we get ahead on the GWP curve, the better. Dr Amr also called for a relaxation of patent procedures.

His train of thought reflected the general opinion that any solution arrived at needed to be global, so that refrigerants and the components should be available around the world and that no solution should be stalled due to patent barriers.

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This is what they said…

Focusing on assessment and ratings of refrigerants in use in the region, Day 2 of RR2 began with a lively panel discussion, moderated by Narciso Zacarias. Here are the highlights: Dr Yehia Amr: We are improving the efficiency of our equipment, so that we are compensating for any GWP from these new refrigerants by a factor of three to five, and in order to do that, we are using much larger condensers, which lower the

condensing temperature of refrigerants, making it suitable for the Middle East. And for Kuwait, we have high standards of kw/t…. The first priority is the complete phase-out of HCFS, and we are working towards the transition of HFCs and make Montreal Protocol a 100% success.… One proposal would be to encourage the use of low GWP refrigerants,

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but the price shouldn’t be two to three times the cost of the HFC refrigerant it is going to replace…. If we think out of the box, I’d suggest there’d be a tax on high GWP (or high ODP) refrigerants in the country of use. In the GCC, the tax should be made applicable per one kilo of refrigerant, and that would create a fund to dispose the refrigerants. And the solution could apply not only to the GCC, but globally; we need a pull for all companies to quickly use lowGWP refrigerants.”

Hilde Dhont: “We have to make a roadmap for the GCC and the basic starting point for it is exchange of information on barriers and building codes that need to be amended. We have to start now, as there isn’t much time left.”

Konstantinos Kontomaris: “Adapting to needs of the area here, this is a goal that’ll need a simultaneous collaboration of fluid and the system. One suggestion is not be hasty in jumping to conclusions, based on incomplete information and in terms of regulation, allow flexibility to achieve the goal of climate protection.”

Dr Anwar A Hassan: “Within large global companies, there’s large internal competition for funding.

Who does his homework first, and who speaks loud and is more convincing, gets the nod…. Our business organisations have to understand that they should have a few strong engineers in application or manufacturing

who are always giving feedback to the mother ship, and all professionals like us should be more active in ASHRAE and make more than just product presentation, and try to form opinion and propagate it.”

Dr M Ramaswamy: “In Oman, mainly, we have service side. So do we have a common strategy to address the unorganised sector?”

Nicholas Cox: “What happens to HFCs at end of life? They’ll not have end of life.

They’ll continue to be recycled till they leak. We can delay the process. The best we can hope is recycling and preventing the leak.”

Rajendra Shende: “But evolving technology will surely provide a better option of capturing and destroying it.”

Narciso Zacarias: “Can we have something like a rating of all these refrigerants in a metric format – scale 1 to 5, and 1 would be lowest? So, if we have rating for a refrigerant which is below 30 GWP, then 5. Toxicity: ammonia toxicity level up to 10,000 PPM rating of 1. Rating based on temperatures, pressures, LCCP, etc. Then average of these scores, and then the rating that goes up favourable will go up higher.

Is there a possibility of coming up with this rating system – a numerical rating matrix?”

Yaquob Al Matouq: “You can’t put a matrix for everything, so [it is] country to country, application to application.”

a group of refrigerant matrix for low-, medium- and hightemperatures, and cryogenics. So we classify those and, then, say we use 1, 2, 3, 4 refrigerants for that group.”

Sarfraz Dairkee

Ghaleb Abusaa: “Are refrigerants only CFCs, HCFCs and HFCs? They are not! The food industry (food chain) has affected the environment more than air conditioning. The petrol in car needs refining, and the refinery needs refrigerants. We don’t see some of those refrigerant applications. I agree there’s no single best refrigerant in the world, but we at least need

(co-founder of EmiratesGBC and a member of the audience): “We can bring the [US Green] Building rating system model to refrigerants. We can probably draw upon that and apply here.”

Yaquob Al Matouq: “I’m in the Montreal Protocol Executive Committee. Foam and insulation sector is everywhere…. In the GCC, the major consumer is

foam first, and then AC; and then, the refrigeration sector is only two per cent. So, that is why we did not prioritise refrigeration…. The funding from Montreal Protocol will come only based on priorities.”

Dr Yehia Amr: “Our goal ultimately is global warming, and we have done well in eliminating ODS. And now [we need] to tackle GWP. But we’ve to remember that 90% comes from electrical consumption of equipment. But just remember that two per cent improvement in energy efficiency will totally offset GWP effect. So, we have to capture the low-hanging fruit.

Looking forward, yes, we do have to go with GWP refrigerants. Life is not any longer simple now, because we have blends. We have so many more refrigerants,

so it’s going to take more time for everyone to figure which refrigerants to use.”

A spokesperson from Rotana Hotel Group (speaking as a member of the audience): “The percentage of leakage is increasing day by day. We do have a lot to do in terms of smaller units. But there’s a lack of knowledge among the lower staff. If manufacturers are providing such units, we should make it compulsory for them to provide training on how to recover, the tools present, etc.

Yes, research can go on to find refrigerants and metrics. But we have tonnes and tonnes of refrigerants, and we do not have the technology to destroy them, and so longer we hold them, lesser we have to produce.”

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focus

ADHESIVES

STICKING

AROUND How are the companies in the adhesives industry dealing with the lingering economic crisis? What do they think of setting-up regionally based testing centres? How is the market appreciating product innovations and advancement in the sector? Jerome Sanchez reports.

T

he adhesives industry is very promising in the Middle East, with the adhesives market for ducting alone being worth approximately $100 million. Nabeel Awan, Managing Director, Napco Middle East Ltd, valued the overall adhesives industry at $500 million, with Saudi Arabia, UAE and Qatar getting a majority of the market share. Based on the figures given, albeit estimated, the market size of the adhesives industry in the Middle East is substantial, and the use and applications of adhesives in the region are critical.

In these times of global economic crisis and increased pressure for better efficiency and improved quality, businesses are continuously striving to stay alive, achieve better market share, and comply with the new demands and standards set by the industry. Besides asking Awan, Climate Control Middle East spoke to several other key industry players how their companies were coping with the lingering economic downturn and how the market was receiving the introduction of higher-priced products that promised more value and better quality of living.

BATTLING THE CRISIS

The players agreed that the economic crisis had, indeed, affected not only the adhesives industry but also the whole HVAC industry. They were, 54

Climate Control Middle East November 2012

however, optimistic and reported that their respective companies had strategies in place to combat the present downturn. As Sal Fasanella, Products General Manager, Carlisle HVAC, put it: “Our focus in these troubled times has been in areas where there is little competition. We have achieved this by innovating new products and solutions that do not exist but are needed in our industry.” Awan said that market and industry diversification, increase in export, and development of products for industrial applications were the keys to surviving the present economic situation. Ajit Abraham, Divisional Manager, HVAC, Leminar Air Conditioning Company, on the other hand, suggested a more personal approach. “We meet our clients and contractors to find out how we can provide them solutions and meet their requirements,” he said.

Despite the economic situation, however, they said that companies in the industry were still looking at expanding their market presence and venturing into new locations and areas.

Consultants, contractors and the government should push for a regionally based testing centre Awan revealed that Napco was currently exporting to approximately 25 countries, with distributors present in every country that they exported to. “We are currently not planning to venture into the UK market as of now, since it is really bad at the moment,” Awan said.

“Venturing into Eastern Europe, perhaps Turkey, is more of a possibility,” he said. Abraham, however, said that Leminar was keeping its expansion within the GCC. “Our Oman outlet has just opened, so we are more

interested in expanding in the GCC,” he said. “Africa is a potential market, but not at the moment.” Fasanella gave a hint to Carlisle’s plans by simply stating, “We are interested in expanding current markets as well as looking to open new markets.”

INNOVATING IN TRYING TIMES

All three were united in saying that, in spite of the shrinking market, their companies had not stopped innovating and working to offer better products to consumers. Fasanella said that Carlisle had developed a solution for retrofitting existing buildings. “The concept is basically a series of products and equipment that can seal the interior of the ductwork,” he said.

“Our process allows a robot, called ISAAC, to spray specially engineered products from the interior of the ductwork, therefore eliminating the need to tear down walls of ceilings,” Abraham and Awan answered in the same perspective, saying that improvements in their products, such as reduction in VOCs, were motivated by new green building standards, international quality and efficiency specifications and rating systems, such as LEED and Estidama.

Improvements in their products were also geared to address some key maintenance issues, including air leakage; presence of dust and debris; and growth of moulds, microbes and fungi. “We have created specialised anti-fungal coatings that protect the surfaces exposed to high humidity,” Awan said. Speaking for Carlisle, Fasanella said: “The presence of

addressed through proper installation and good quality products. He mentioned that products to be used in this application should be tested and approved by governing bodies, including Dubai Municipality and Civil Defense, and must comply with standards like the American and the British standards.

moulds in a duct system is eliminated when the food for the mould – microbes and fungi – are not allowed to enter the duct system. The ISAAC robotically applied products seal the duct openings in the duct system, thus not allowing the mould to get into the ducts. Carlisle sealants have chemicals in the formula that will prevent mould in the wet state and, once dry, will not become food for the mould.”

Abraham provided a broader perspective to the issue. He said that the maintenance issues could be

PASSING THE TEST

In line with the question of quality and standard compliance, the respondents elaborated on their testing regimen.

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November 2012

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adhesives

Sal Fasanella

Nabeel Awan

“Our laboratory in Texas tests and benchmarks current products with others supplied in the area,” Fasanella said. For Leminar, Abraham said that the products they supplied were tested and approved by the Dubai Municipality and Dubai Civil Defense. Awan, on the other hand, said that the contractors and consultants they dealt with, assigned the testing centres, and that they usually sent the products to Canada or to the UK for testing.

The answers, however, were conflicting when the three were asked about their take on setting up regionally based testing centres. “Consultants, contractors and the government should push for a regionally based testing centre,”

Ajit Abraham Awan said. “Cost-effective, regionally based testing centres will help improve quality of products. The government should push for high-quality products, and the contractors should advocate quality.” Added Abraham, “Regionally based testing centres help you find out if products adhere to regional requirements.” Fasanella, on the other hand, maintained that Carlisle did not find the need for a regionally based testing centre, and that their testing facilities were “quite capable with this type of testing”.

LUKEWARM WELCOME

When asked how the market was receiving and giving importance to these

product improvements and innovation, against the cost of procurement and ownership, the respondents gave differing answers. “The market is maturing, but as of now, I can say that 60% of the market still gives premium to cost instead of to quality,” Abraham said. Added Fasanella: “This depends on where the products are sold. In the past, it was all related to cost; however, in the Middle East, we are starting to see a shift to safer products.

Awan, however, decisively answered that consultants and contractors had their quality specifications and that they procured products that complied with their set standards.

CONCLUSION

Companies in the adhesives industry agreed that the economic downturn had affected their businesses, in one way or another. Some made their way through, while others succumbed to the crisis and to the increasing pressure to innovate and meet new industry quality and efficiency standards. Working with stakeholders, innovating to produce better and more reliable range of products, meeting industry requirements, complying with the new set of quality standards, and finding solutions to problems no one thought existed, were the strategies some companies adopted to thrive in these trying times. 

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perspective COOLING TOWERS

Cooling towers — making the right selection

Cooling towers have gained in popularity and have become the standard heat rejection method, says Georges Hoeterickx, and gives several pointers to be kept in mind while choosing packaged-type cooling towers.

C

ooling towers allow designing of cost-effective systems with maximum system efficiencies. The aim of this article is to provide an overview of a few important criteria that need to be applied when selecting or specifying a cooling tower for a project. The scope of this article, however, is to focus on packaged-type of cooling towers and not field-erected cooling towers. Packaged-type cooling towers generally go from 100 tonnes up to 1,200 tonnes capacity per single cell.

DESIGN CRITERIA OF A COOLING TOWER – APPROACH

The size of a cooling tower depends on the flow, water inlet and outlet temperatures and the design wet bulb temperature. The difference between the water outlet temperature and the wet bulb temperature is called the approach. The smaller the approach, the larger the size of the tower. Costeffective selections are based on a

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Climate Control Middle East November 2012

criterion using an approach of 4°C. A criterion using an approach smaller than 2.8°C is not economical, nor will it be certified by CTI. Selections using approaches more than 4°C result in higher condensing temperatures (reduced chiller efficiency and performance) without much savings on the cooling tower.

PERFORMANCE – CTI CERTIFICATION

While it is not easy for an expert to compare different cooling towers with

regard to performance and confirm which one is correctly sized, the task will be even more challenging for non-experts. It is, therefore, strongly recommended to limit the choice of the cooling towers to those which are CTIcertified (Cooling Technology Institute).

CTI is an independent organisation, which is well recognised around the world, and most global cooling tower manufacturers have their cooling tower ratings verified and confirmed

by CTI as part of the CTI Certification programme. Selecting such cooling

undersized cooling tower by having his system running at higher condensing temperatures, and as such lower efficiencies. Some manufactures do have certified products, but do not hesitate to offer non-certified products, too. It is, therefore, advisable to go to the CTI website (www.cti.org/cooling tower certification) to find the list of all cooling tower manufacturers and their respective certified products and models and make sure that you receive what you expect. In case of doubt, one can always contact CTI.

Cooling towers should be certified by an independent approval agency to confirm they meet specified design conditions, such as wind load and seismic forces

INTERNATIONAL BUILDING CODE

The International Building Code (IBC) is a comprehensive set of regulations addressing both the structural design and the installation requirements for building systems, including HVAC equipment. Compared to previous building codes that considered only the building structure and component

towers assures that you will receive the specified performance as well as fair play between all the different equipment manufactures.

Products which are undersized are still a common practice, and the final owner/user pays the penalty for the

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anchorage, the requirements contained within the IBC address anchorage, structural integrity and operational capability of a component, following either a seismic or wind load event.

Simply stated, the IBC code provisions require that the cooling towers and all other equipment permanently installed on a structure must be designed to meet the same seismic and wind load forces as the building they are attached.

Cooling towers should be certified by an independent approval agency to confirm they meet specified design conditions such as wind load and seismic forces. A common value for the wind forces used in the region is 2.8 kN/sqm or 110 km per hour wind velocity.

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perspective COOLING TOWERS

Image 1: Super low sound fan

Image 2: Water silencers

centrifugal fans and induced draft, using axial fans. The major advantages of the axial type fans are: • Much lower energy consumption, normally in the range of 50% less • Easier maintenance • Lower cost per tonne of heat rejection Considering the benefits, induced draft axial fan-type cooling towers should always be the first choice. The only reasons why centrifugal fan-type units can or should be considered are applications where the cooling towers are installed inside the building and the fans need to handle an extra static pressure or when extreme low sound levels need to be achieved.

It is important to note that thanks to modern fan technology developments, axial fan units can be made available that meet very stringent sound criteria without being penalised on the power consumption of the centrifugal fan units.

The image, right, shows a typical super low sound fan. Such fans reduce cooling tower noise levels with nine to 15 dB(A). Further noise reductions can be achieved by installing water silencers (see Image 2) to eliminate the noise of the falling water.

In this regard, it needs to be noted that for example, two years ago, Kuwait’s Ministry of Electricity and Water issued a Code of Practice to be followed in order to rationalise the power consumption in buildings. For cooling towers they specify that the maximum power rating of the fan motors should not exceed 0.04 kW per tonne heat rejection. With designs available today, this target is relatively easy to achieve, even with CTI-certified products.

However, there are manufactures who continue to offer lower cost axial fan models, which result in power consumption requiring 30% more fan power than a more efficient solution. Over a period of 10 years, this represents a significant amount of kWH and electricity cost.

KW FAN VERSUS TONNE HEAT REJECTION When designing or selecting a cooling tower, one can minimise the first cost of the cooling tower and end up with a tower having high power consumption.

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Climate Control Middle East November 2012

TYPE OF CONFIGURATION – CROSSFLOW VERSUS COUNTERFLOW

The old style crossflow-type cooling towers are increasingly getting replaced by the more efficient and user-friendly counterflow-type cooling towers. This type is already the standard at all Middle East district cooling plants, and is now more and more used as a packaged tower.

Major reasons opting for a counterflow-type cooling tower are: • Single water inlet per cell – easier piping and no balancing per inlet needed. This is a major issue with crossflow type of towers where the

Image 3: Algae formation in a crossflow cooling tower basin

Direct sunlight combined with warm cooling tower water results in a strong formation of algae in the basin, increasing maintenance and water treatment costs condenser water is fed to two open hot water basins at the top, which need to be balanced with expensive valves to ensure proper distribution over both sides of the cooling tower.

• Easy access to the sloped basin for maintenance and operation makes this type popular with users.

• The fill is completely encased in the unit casing, and as such has a maximum of protection.

• No direct sunlight can come in contact with the water in circulation in the tower. This is an important feature, which reduces the potential for algae growth and development in the cooling tower, thus reducing water treatment and maintenance costs. In crossflow-type cooling towers, sunlight is in direct contact with the water at the air inlet

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perspective COOLING TOWERS

sides and in the basin through the fan opening on the top.

• Sand and dust are in the plenum beneath the fill and washed out of the water before the air enters the fill. On the other hand, in a crossflow-type, the air contaminated with sand and dust enters the fill directly at the air entry sides, causing rapid contamination and scale buildup in the fill.

HOW TO KEEP YOUR COOLING TOWER SAFE AND EFFICIENT

The above is the title of a guideline published by Eurovent a few years ago, and describes the required measures to be taken to ensure that a cooling tower operates safely and efficiently.

However, it is more focused on the prevention of the development and spread of Legionella (LD) Bacteria.

A few of the major requirements for a cooling tower to minimise or avoid the development of LD bacteria in a cooling tower are as follows: • The basins must be designed for minimum water content and have (a) sloping bottom panel(s).

• The water in the cooling tower should not come into direct contact

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Climate Control Middle East November 2012

The savings made in shipping cost don’t offset the expenses and problems clients normally experience later, with units assembled on the jobsite by unskilled labourers in difficult conditions with sunlight.

• There should be no dead zones

where debris can accumulate and become difficult to remove.

• Spray system which is non-corrosive and easy to clean should be used.

• There should be minimum drift losses.

When considering these important criteria it is obvious that the old style crossflow tower no longer meets any of these requirements, and high level designs have increasingly moved towards counterflow-type of cooling towers.

Crossflow towers have sunlight directly shining into the basin. The direct sunlight combined with the warm cooling tower water results in a strong formation of algae in the basin, increasing maintenance and water treatment costs. The result is shown in Image 3.

The area beneath the fill in a crossflow cooling tower is nearly impossible to inspect or access. Dirt will easily accumulate, also because of the low water velocities in this area, which will enhance the possibility for LD contamination of the cooling tower water.

Drift losses in crossflow towers are five times higher compared to counterflow, where Eurovent-certified values of 0.001% can easily be achieved. Besides the higher water losses with crossflow type of towers, the potential spread of contaminated droplets from a crossflow tower is five times higher, as with the modern counterflow cooling towers.

PRESENTS

Awards 2012 November 7, 2012 | Godolphin Ballroom Jumeirah Emirates Towers, Dubai, UAE

THEME:

Self-actualisation – aiming for the sublime in HVACR innovation and business practices The Climate Control Awards represents prestige, credibility and a celebration of the HVACR industry in the Middle East.

With key players from the industry attending here’s your chance to...

• Network with leaders in the industry and government • Express your commitment to energy efficiency and best HVACR business practices

TO BOOK A TABLE OR SEAT, Log on to www.climatecontrolme.com/awards Ensure your table / seat by booking early!

THE BROAD AWARD CATEGORIES ARE  Carbon and HVACR  Standalone systems  Refrigeration (food & beverages industry)

 Building performance  District cooling  Food safety

AREAS OF FOCUS Consultancy, contracting, AHUs, FCUs, large-tonnage chillers, controls, cooling towers, piping systems, multi-splits, RACs, small chillers, DX systems, compressors, insulated panels, transport refrigeration, ventilation, ducting, fire safety, thermal insulation, acoustic insulation, paints, lighting, glass/film

SILVER SPONSORS

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In North America, contact: Kanika Saxena Our representative in North America

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FOR PROGRAMME-RELATED QUERIES: B Surendar

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perspective COOLING TOWERS

CONSTRUCTION MATERIALS

Cooling towers are made of different kinds of materials, such as galvanised steel, stainless steel or Fiberglass Reinforced Plastics (FRP) or a combination of these.

Considering the harsh conditions cooling towers have to operate in the region, galvanised steel, at times protected with some kind of coating, is a questionable practice, especially for the water basin components.

Stainless steel offers an excellent alternative to this, and customers have the choice between SST 304 L or 316 L type. The 316 L type is more expensive but offers better corrosion resistance in high chloride environments.

The use of FRP should be handled with great caution for several reasons: • There are many FRP quality gradients in the market, and the cheaper ones are certainly not the better ones. Special attention needs to be paid to the flammability rate of these materials, as well as UV protection and resistance.

• High quality FRP is not cheap but offers excellent characteristics with regard to corrosion and structural strength.

• Some manufactures build only a steel frame, often from galvanised steel and use low-cost light-weight FRP panels as casing panels of the cooling towers. These structures are certainly not corrosion resistant,

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the panels don’t prevent sunlight from entering the fill section and have high flammability and no structural strength.

Often, these towers are wrongly called “FRP” type of towers, creating a completely erroneous perception.

ORIGIN OF MANUFACTURING

It is advisable to know where the cooling tower is being made – at the manufacturer’s premises or outsourced to foreign subcontractors. In the latter case, assurance will probably be needed about the final quality and aftersales support, especially with regard to spare parts and replacements.

Often, cooling towers are shipped unassembled to jobsites and, then, assembled by a local labour force.

In such a situation, never expect the same quality as you would get from a cooling tower assembled in the manufacturer’s own plant by skilled workers in factory conditions. When it comes to the practice used by some suppliers of outsourcing the complete manufacturing of cooling towers, it needs to be remembered that the savings made in shipping cost don’t offset the expenses and problems clients normally experience later, with units assembled on the jobsite by unskilled labourers in difficult conditions.

Climate Control Middle East November 2012

The only reasons why centrifugal fan-type units can or should be considered are applications where the cooling towers are installed inside the building and the fans need to handle an extra static pressure or when extreme low sound levels need to be achieved

of receiving the right kind of performing unit.

3. Make sure the tower’s structural design meets the right standards to withstand local conditions and that the product is IBC compliant.

4. Whenever possible, select axial fan units. Consider super low sound fans when low noise levels are needed.

5. Select or specify efficient cooling towers: 0.04 kW/ tone.

6. Opt for counterflow-type of cooling for the several obvious reasons listed earlier.

7. In order to have a tower which offers you the minimum challenges to control LD development in your cooling tower, go for the counterflow-type.

8. Either go for a full stainless steel cooling tower or a full FRP one.

Don’t get misled by poor quality FRP materials and concepts.

9. Opt for factory-assembled units and make sure you know where they are built. Visit the plant and inspect the towers while being assembled. 

SUMMARY AND CONCLUSION

Selection of the right cooling tower for your application can be summarised as follows: 1. Use a cost-effective approach (difference between water outlet temperature and design wet bulb) of 4°C. 2. Select only CTI-certified models – you will be sure

The writer is Director Business Development, Evapco Europe. He can be contacted at: hoeterickx_g@evapco.be

SUPPORTED BY

Speakers include H.E. Dr. Abdullah Al-Shehri Governor Electricity & Cogeneration Regulatory Authority (ECRA)

20 - 21 November 2012 | Holiday Inn Al Qasr, Riyadh, Saudi Arabia THEME:

Exploring cooling approaches, addressing fire safety concerns

Werner Lutsch CEO/Managing Director AGFW | The German Energy Efficiency Association for Heating, Cooling and CHP

Regional meet of the MEP industry DISTRICT COOLING

STANDALONE (DX SYSTEMS)

George Berbari CEO DC PRO Engineering

FIRE SAFETY & HVAC

Salah Abdulaziz Al Afaliq Vice-Chairman, Managing Director and CEO, National Trigeneration CHP Company (NTTC) Saudi Arabia

WHY PARTICIPATE • Showcase your most innovative products to top level decision makers of HVAC industry including ministers, heads of local authorities, chairpersons, CEOs, CFOs and more from the region’s leading players • Meet qualified HVAC experts face-to-face at roundtable meetings • Brand and promote your products by leading international media • Network & establish new contacts with leaders in HVAC industry and take advantage of high profile deal-making opportunities.

• Learn about the latest developments in HVAC industry in a five-star venue.

REGISTER NOW!

Ghaleb Abusaa CEO, en3 Solutions (The Three Factors Company)

Joe Riemer CTV Product Support Leader, USA, Trane

Zulfiqar Mooraj Managing Director Samson Controls FZE

TOPICS INCLUDE: • Affordable housing in the Kingdom of Saudi Arabia: Challenges and opportunities for district cooling and standalone systems • Power security: Broad challenges in the power sector, and the critical role that district cooling and CHP can play in the Kingdom to reduce domestic consumption of crude oil.

• District cooling in Saudi Arabia: • A consultative approach to district cooling • Carbon credits and district cooling • District cooling innovations in Saudi Arabia

Yaser Nazir Lead Trainer and Master Consultant — Quality, Environment, Food Safety and Health & Safety Diversey Consulting

• VRFs/VRVs/TVRs: COPing with energy efficiency expectations • The high level of electronics in a VRF/VRV/TVR system: Advantage or impediment?

• Case studies on major VRF/VRV/TVR projects in the GCC and internationally.

• Saudi Building Code and its critical role in preventing outbreak of fires.

• Re-examining fire safety needs. What needs be done to avoid a Villaggio?

Mike Hicks Project Manager Stanley Consultants

Aaron Vanney Senior Consultant Rolf Jensen & Associates, Inc.

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FOR PROGRAMME-RELATED QUERIES:

FOR EVENT-RELATED QUERIES:

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Mehwish Hilal

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perspective GREEN BUILDING

The green building

Conundrum Saeed Alabbar discusses how modern buildings in the Middle East are actually less efficient than decade-old constructions, and suggests measures that need to be taken to address the problem.

W Whilst the term “Green Building” is relatively new to the region and is currently much in circulation, the concept itself has been

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around for generations here.

In the early decades of the 20th century, buildings were extremely sustainable due to the lack of availability of centralised electricity and water supply and the use of only local building materials. Buildings were, therefore, constructed with a strong focus on using passive design measures to provide ventilation and daylight,

Climate Control Middle East November 2012

whilst keeping out unwanted heat.

Following the discovery of oil and the introduction of centralised power and water in the region, the design of buildings began incorporating air conditioning, electrical lighting and running water.

However, during this era, building designs still maintained the passive design measures of local traditional architecture, such as window set-backs and shading. This was mostly due to the fact that at the time electricity was still considered a luxury and a precious commodity. Designers and builders, therefore, would instinctively develop buildings to suit the local climate with due consideration for resource scarcity. There are numerous examples of such architecture throughout the UAE, such as the World

There is really little use in specifying the top-of-therange insulation for a building, if heat is allowed to pass through all its exposed elements Trade Centre building in Dubai.

As the UAE entered the 21st century, globalisation brought with it many ideas and design concepts from the West, and fully glazed skyscrapers began dominating the city’s skyline.

It can be argued that the use of fully glazed and, therefore, poorly insulated façades can be an inappropriate design concept for the climate in the region. However, the

concept came to be frequently used to showcase modernity in new buildings.

Costly, energy-intensive air conditioning technology was utilised to ensure that such buildings were able to maintain comfortable interior conditions despite the poor insulation.

Recognising the need to improve building sustainability, local building codes began evolving during this time to incorporate some of the fundamental features of Green Buildings, predominantly with a focus on insulation. For example, Dubai Municipality introduced insulation standards for new buildings in 2001. Towards the latter part of the decade, local governments also began introducing more rigorous codes, such as the Estidama Pearl Rating System in Abu Dhabi and the mandating of elements of the LEED Rating System for buildings within Dubai World’s jurisdiction.

Furthermore, Dubai Municipality is also due to release its own Green Building regulations.

Whilst these are, indeed, welcome measures for the industry, and local governments should be praised for the bold steps being taken to address the sustainability of buildings, there are a few fundamental issues that need to be addressed in the industry. Despite all these measures being taken, we are still, unfortunately, in a situation where buildings being constructed today consume more energy per square metre of floor area than buildings constructed in the 1970s. As an industry, we are falling over ourselves to find the latest breakthroughs in technology to help save energy, and there have been some incredible advances made in technology.

Why, then, are we using more energy now than 40 years ago? Surely, engineering should be about progress,

designers to improve building designs.

But shouldn’t we also, then, pay more attention to what the building consumes in reality after it is built?

Furthermore, a lot of the analysis done at the design stage consists of comparing the building being designed to a theoretical baseline of “the same building built to code requirements”.

Therefore, if the fundamental design is terrible, the analysis that is required by the rating system will not reveal this.

So, the question that needs to be

shouldn’t it?

Unfortunately, we as an industry are still not asking ourselves the fundamental question of how much energy a building consumes in real life, compared to other buildings. It is true that some wonderful work is being done at the design phase with building information modelling in order to simulate the performance of buildings before they are built.

This is, undoubtedly, a move in the right direction and is a great tool for

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November 2012

www.climatecontrolme.com

67

perspective GREEN BUILDING range insulation if heat is allowed to pass through all the exposed elements of the building. Major savings in energy can be made by addressing this rather simple issue, which would not cost that much to fix.

asked is: What do we need to do as an industry? Here are a few suggestions, which, in my opinion might help address the issue:

Adopt a realistic approach

We need to start talking about a building’s energy use intensity and energy consumption per square metre, rather than comparing buildings to theoretical baselines.

Set stringent quality control guidelines Quality control in the integrity of building

68

envelopes needs major improvement. Some insightful analysis goes into building designs to select the right glass and insulation. But quite often, all this good work is lost during construction, as insulation and façades are installed poorly, with high levels of thermal bridging and air leakage. It is not only the contractors who are at fault here. A lot of building envelope designs done by architects in the region are also very poor, with enormous amounts of thermal bridging.

There is really little use in specifying the top of the

Climate Control Middle East November 2012

Focus on the operational aspect We need to move the discussion of Green Buildings into the realm of building operation. There is a lot of talk about green design and green construction. But all the noble objectives appear to cease to matter once the building is completed and has received its rating.

Buildings do not consume energy while they are being built. They only consume energy when they are occupied. This, therefore, should be the most important phase of a Green Building’s life. In the light of this, we need to pay more attention to the energy efficiency of building operation and begin reporting the energy use intensity of existing buildings.

Ensure proper utilisation of new technology

Before we try to outdo ourselves with the highest technology of systems in buildings, we need to make sure that those systems will be commissioned properly.

Far too often, when we look at existing buildings, we see the most expensive and the highest spec building management system turned off because it is not working properly or the operators do not know how to use it. Bridging the interface between construction and

All the noble objectives appear to cease to matter once the building is completed and has received its rating operation through proper commissioning is essential, particularly now, as buildings are becoming more and more high-tech.

Despite these issues, there is a lot of great change that has taken place in the industry over the past few years, and governments and private sector are both making great strides in the realm of sustainable buildings. However, we must not rest on our laurels and must wake up every day and ask ourselves the fundamental question of how we can really make our buildings better. 

The writer is Director at AESG. He can be contacted at s.alabbar@ aesg-me.com

Spotlight This is the second in a multi-part, in-depth series on air filtration

UNCLOGGING FILTERS AND MINDSETS Arguing that unclogging of filters plays a critical role in ensuring better Indoor Air Quality, Dr Iyad Al-Attar demonstrates why it is important to determine when and how clogging occurs.

i In hot climates, such as the GCC region, possibly the second thing we do after switching on our car engines is to turn on the air conditioning. And we get frustrated when it doesn’t start blowing sufficient amount of cold air immediately and begin to wonder what we could do to remedy the situation.

The signs of discomfort start with reduced air flow, increased indoor temperature, concentration of pollutants and, finally, it could be due

70

to the vehicle compressor attempting to protect itself by using an automatic safety shutoff feature after detecting abnormal pressure change.

When this happens, we rush to the nearest mechanic's garage to locate the problem and get a satisfactory solution.

Chances are that he will pull a clogged cabin air filter. Our immediate reaction to this would be, “No problem; we can just replace the filter and we are back on track.” This is because we believe that a clogged filter affects only the air conditioning system. But, in fact, filter clogging makes the vehicle’s engine spin faster to provide the required power for the air conditioning system to operate. This, consequently, reduces the power reaching other components in the car, such

Climate Control Middle East November 2012

Figure 1: SEM (Scanning Electron Microscope) view of used cabin automotive air filter as the alternator. Ultimately, since more power is diverted to meet the needs of the air conditioner, the overall engine horsepower and performance could suffer [1].

By the same token, allowing

the air filter in an air handling unit to clog could risk filter structure failure, such as disintegration or media rupture. When this happens, the dust filter becomes the source of contamination

Addressing HVACR-related acoustics and vibration concerns and challenges 6 December 2012 | Jumeirah Beach Hotel, Dubai, UAE

Health | Well-being | Productivity

Key topics for discussion: Acoustic insulation: Sound absorption, yes, but is the liner free from emission of fibres at high air velocities? A look at recent advances that prevent any health hazards.

Dry-lining: Shrink in dry liners owing to ageing or temperature variations? Is the performance integrity maintained over the lifetime of the construction?

Acoustical silencers in ductwork sections: What is the rating on their effectiveness in helping control noise?

Non-hygroscopic materials: Are they the answer to all moisture-related concerns?

The world of grilles and diffusers, and noise criteria (NC) Sound isolation and room shaping in design The bane of limited silencer connection sizes and insufficient straight duct Low-frequency noise Acoustics and vibration controls in a healthcare facility: A look at materials selection and installation practices from the points of view of patient well-being and equipment well-being (sensitive equipment, like MRI systems).

Acoustics and vibration controls in a recording studio: A look at materials selection and installation practices.

Are duct-liners the primary means of reducing HVAC noise, because insulation materials – such as wraps, which are used on the outside of HVAC-system components – do little to reduce the transmission of sound waves?

PRODUCED BY

For sponsorships / EXhiBiTion opporTUniTiEs: Frédéric paillé Managing Director & Associate Publisher

T: +971 (4) 375 6833 M: +971 (50) 714 7204 F: +971 (4) 434 1906 E: fred@cpi-industry.com

in north america, contact: Kanika saxena Our representative in North America

T: +1 (905) 890 5031 E: kanika@cpi-industry.com

For programmE-rElaTEd qUEriEs: B surendar Editorial Director & Associate Publisher

T: +971 (4) 375 6831 M: +971 (50) 509 2457 F: +971 (4) 434 1906 E: surendar@cpi-industry.com

For EvEnT-rElaTEd qUEriEs: mehwish hilal Events & Marketing Manager

T: +971 (4) 375 6840 M: +971 (55) 478 5011 F: +971 (4) 434 1906 E: mehwish@cpi-industry.com

Spotlight

and the air handing unit becomes the driving force behind the distribution of dust collected over a span of its lifetime. The contamination the occupants in the indoor space are exposed to, apart from the damage to the HVAC equipment, is simply incomprehensible.

phase). Otherwise, it is regarded as a nonstationary phase (See Figure 2).

2. Transition: Departure from linearity suggests the start of filter cake formation (See Figure 3).

3. The pressure drop curve becomes linear again due to cake formation on the filter surface. Dust cake layer (Figure 4) acts as an additional layer of filtration and generates an aerodynamic drag, which increases the mechanical compression on the layers closer to the filter surface, which, in turn, reduces their thickness and permeability [3].

Figure 2: SEM representing the stationary stage of dust loading

filter clogging enables gas turbine and HVAC designers, engineers and managers to determine the lifetime and pressure drop where filter replacement need to take place. When dust loading occurs, filter structure changes internally, whether particles deposit within the media, or externally, if deposited on its surface to form a new layer of dust. Such change in structure affects the pressure drop response of the filter, which also depends on air velocity. As far as particle size is concerned, finer particles cause higher pressure drop, and are considered to cause more clogging than larger particles [2].

In examining the lifetime of a filter which may end when a recommended final drop is set to replace it, a typical pressure drop curve undergoes three phases of interest: 1. In the initial stage, the curve is linear; this linearity signifies that particles are depositing within the fibrous structure, and a rise of the filter pressure drop is negligible (the stationary

Figure 3: SEM of dust loaded filter has passed the depth filtration stage (transition stage)

Figure 4: SEM of dust cake formation on the filter surface

Filter clogging makes the vehicle’s engine spin faster to provide the required power for WHY IT’S IMPORTANT the air conditioning DETERMINE FILTER system to operate. This TO CLOGGING consequently reduces It is evident that instead of the power reaching other finding quick-fix solutions, we components in the car, need to go to the root cause such as the alternator of clogging. Understanding

72

Climate Control Middle East November 2012

While filter clogging may be inevitable in certain cases, delaying the dust cake formation by extending the depth filtration phase extends the life time of the filter and causes lower rise in pressure drop. One could easily say that efficiency enhancement of an air filter can be achieved by increasing its depth using successive layers. This may be possible. However, the

Spotlight

Dust cake layer acts as an additional layer of filtration and generates an aerodynamic drag, which increases the mechanical compression on the layers closer to the filter surface, which in turn reduces their thickness and permeability rise of pressure drop versus the gain in efficiency may not be justifiable.

Further, there are other parameters that need to be considered, such as particle concentration, size and the depth deposition occurrence relative to the filter medium pore size. Therefore, the role of these parameters has to be considered in order to examine the possible enhancement of both filter lifetime and efficiency.

Protecting the filter by introducing pre-filters or reinforcing the existing ones can be a great help in decreasing the dust concentration of the particles arriving at the final filter. In other words, pre-filters help the final filter deal not only with smaller particle size range but also with lower concentration.

FILTER LIFETIME

Filter lifetime is an important aspect of the filtration process, since it has economic implications. Manufacturers, engineers and end-users are

74

interested in extending the lifetime of the filter, especially fine and absolute filters.

The fact remains that there are a couple of important consideration that need to be kept in mind at this stage of the discussion: 1. Increasing the surface area of the existing filter 2. Introducing a filtration stage or stages prior to the existing one 3. Using different filter or design When dust particles get deposited within the depth of the filter, the filter’s characteristics undergo important changes and the filtration performance gets more complex to describe.

Filtration statics describe the filtration parameter of an initial or clean filter performance during dustloading. The filtration dynamics become, indeed, very challenging, since it is a time-dependent filter characteristic that is used in describing the filter clogging process.

HOW DUST CAKE GETS FORMED

It is very common to see maintenance crew relying on a single filtration stage, such as a fine filter, to counter the atmospheric air with its entire particle size distribution.

This simply means speeding up dust cake formation on the surface of the filter to an extent that the particle depth deposition is minimised. In fact, what actually happens at this juncture is that the fine filter deals with greater dust concentration and larger particle sizes than it should.

In other words, greater dust concentration promotes dust cake formation, which can

Climate Control Middle East November 2012

be formed by a combination of two primary mechanisms – bridging and complete blocking.

WHAT’S THE WAY OUT?

Certainly, there appears to be no way out! But one significant way to surmount the problem of dust cake formation is to bring it under the analytical knife. This will facilitate a better understanding of the problem of filter clogging.

It is no surprise that several parameters influence dust cake formation and filter clogging. These can be categorised under the following heads. They could give a cursory view of the area of research that warrants in-depth understanding and analysis.

• Particle size, distribution and morphology forming the dust cake layer • Dust cake’s fragile nature, porosity and permeability • Filtration medium characteristics Researchers in the past have relentlessly studied the phenomenon of dust cake formation and filter clogging. CN Davis in his famous book, Air Filtration theoretically defined the increase of filter resistance and collection efficiency as a result of clogging in 1970 [4,5]. Several other researchers have attempted to describe the pressure drop of dust loaded filters. However, their approaches required knowing the dust packing density, which is hard to obtain even experimentally.

BORN TO GATHER DUST

We all believe that air filters are born to capture dust and other contaminants.

However, the idea is not only to eliminate dust cake formation, but also to ensure that the filter media depth has been utilised prior to dust cake formation or filter clogging. Dust-loaded and clogged filters need to be dealt with in a professional manner and methodically, especially during replacement and transportation, in order to ensure no further damage is done to the indoor environment and its human occupants. 

References: [1] www.ehow.com [2] Japuntich D.A., Stenhouse J.I.T., and Liu B.Y.H., 1994, “Experimental Results of Solid Monodisperse Particle Clogging of Fibrous Filters”, J. Aerosol Sci, 25(2), 385-393.

[3] Neiva A.C.B. and Goldstein L. Jr., 2003. “A procedure for Calculating Pressure Drop During the Build-up of Dust Filter Cakes”, Chemical Engineering and Processing, 42(6), 495-501.

[4] Davies C.N. 1970. “The Clogging of Fibrous Aerosol Filters”, J. Aerosol Sci., 1(1), 35-39.

[5] Davies C.N., 1973. Air Filtration, Academic Press, New York.

NOTE: Unless otherwise mentioned, all graphs and data are copyright of the author.

Dr Iyad Al-Attar is an Air Filtration Consultant. He can be contacted at: iyad@iyadalattar.com