SA Mechanical Engineer March 2017

S MECHANICAL A ENGINEER March 2017

Publication of the SA Institution of Mechanical Engineering, incorporating News of Associate Organisations

SA Institute of Tribology

Leaders in Technology and Training

REVOLUTIONARY CVT PATENTS CORRECT LUBRICATION USE MAXIMISES PROFIT

SKETCH10003/2017

Incorporating

Chris Reay: Chairman of the Working Committee: Communications (SAIMechE)

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It’s one of the most corrosive environments imaginable, only one material can tough it out

With stainless steel’s strength, versatility and over 200 grades, these are some of the reasons we call it the only man-made noble metal.

Stainless Steel. It’s Simply Brilliant.

Call 011 883 0119 or see sassda.co.za. Your complete stainless information source.

Image courtesy of www.72andrising.com

MSC 1611-001MechChem

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Council 2016 - 2018 Office Bearers President........................ Prof JL van Niekerk (Wikus) Vice President................................... A Roos (Andre) National Treasurer............................. G van den Berg

Branch Chairpersons Central ........................................... C Kruger (Carel) Eastern Cape....................... G van den Berg (Gideon) KwaZulu Natal .................... Dr J Padayachee (Jared) Mpumalanga Highveld ................. N Lecordier (Noel) Vaal..................................... Prof LM Masu (Leonard) Western Cape ............................ S Pietrangeli (Sven)

Scheduled, Open Enrolment Workshops April - May 2017 Bookings for the below scheduled workshops:

Portfolios: Communications/ Strategic Planning/ Specialist Groups . . ................................CD Reay (Chris) Education (Universities of Technology)......... E Zawilska (Ewa) To be confirmed.......................... G Bartholomew (Bart) Professional Development Programme...................................... M Black (Malcolm) Technology Programme.. .................... SZ Hrabar (Steve)

Babcock Ntuthuko Engineering (Pty) Ltd Bosch Projects (Pty) Ltd DCD Group (Pty) Ltd Festo (Pty) Ltd Fluor SA (Pty) Ltd Green Plan Consultants (Pty) Ltd Hatch Africa (Pty) Ltd Howden Power (a div of Howden Africa) Howden Projects (a div of James Howden) Kelvion Thermal Solutions (Pty) Ltd MBE Minerals (SA) (Pty) Ltd Megchem

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CPD Validation Number: SAIMechE-0998-12/19 Code

Days Start Date 1

12 Apr ‘17

End Date

Region

12 Apr ‘17

East Rand

Bookings Closure Date 31 Mar ‘17

Problem Solving for Engineers Workshop

Code E5617 A5617

Days Start Date 1 1

8 Nov ‘17 22 Nov ‘17

End Date

Region

8 Nov ‘17 22 Nov ‘17

East Rand Durban

Bookings Closure Date 27 Oct ‘17 10 Nov ‘17

Fundamentals of Energy Management Workshop

Company Affiliates

Alstom Power Service SA (Pty) Ltd

Understanding the Refrigeration Design Process Workshop

CPD Validation Number: SAIMechE-099-12/17

PO Box 511, Bruma, 2026 Tel: (011) 615-5660 Email: info@saimeche.org.za Website: www.saimeche.org.za Membership Email: membership@saimeche.org.za

Ainsworth Engineering (Pty) Ltd

E-mail: carey@saimeche.org.za

E5317

Chief Executive Officer: Vaughan Rimbault National Office Manager: Anisa Nanabhay

Autodesk as represented by Worldsview Technologies

Carey Evans, Tel: 031 764 7136,

CPD Validation Number: SAIMechE-1030-12/19 A first time SAIMechE Energy Management workshop

Mod-U-Flow CC Osborn Engineered Products SA (Pty) Ltd PaCMan Projects & Maintenance PPS Insurance Co Limited

Code Days

Start Date

End Date

A3617 C3617 E3617

3 May ‘17 30 May ‘17 21 Jun ‘17

4 May ‘17 31 May ‘17 22 Jun ‘17

2 2 2

Region

Bookings Closure Date Durban 21 Apr ‘17 Cape Town 20 May ‘17 East Rand 9 Jun ‘17

Effective Brainstorming Techniques Workshop

Rotek Engineering

CPD Validation Number: SAIMechE-1002-12/19

S.A.M.E Water (Pty) Ltd

Code Days

Start Date

End Date

Region

E9917

10 May ‘17

11 May ‘17

East Rand

SA Power Services (Pty) Ltd Sasol Technology (Pty) Ltd SEW Eurodrive

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Bookings Closure Date 28 Apr ‘17

Leadership and Project Management in Engineering Workshop

Siemens Ltd Spirax Sarco (Pty) Ltd Tenova Mining and Minerals SA

CPD Validation Number: SAIMechE-1002-12/19 Code Days Start Date End Date Region

Bookings Closure Date 8 May ‘17 7 Jul ‘17

ThyssenKrupp Industrial Solutions SA (Pty) Ltd

C9817 A9817

Ultra-Flow Engineering Services CC

Implementing ISO 9001 / 2015 in Manufacturing Organisations Workshop

Vital Engineering (Pty) Ltd Weir Minerals Africa

2 2

17 May ‘17 19 Jul ‘17

17 May ‘17 19 Jul ‘17

Cape Town Durban

CPD Validation Number : SAIMechE-1014-12/19 Code Days

Start Date

End Date

Region

E9717

24 May ‘17

24 May ‘17

East Rand

Winder Controls (Pty) Ltd

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March 2017

Bookings Closure Date 15 May ‘17

Hein Pretorius from Onpro Consulting says the success of ERP software projects is grounded in the strategy, not the system

It may seem tempting to follow the implementation route recommended by a service provider with extensive experience, but business owners and/or directors need to remember that the responsibility of sustained business performance remains their own

Based on how much effort they make to understand the client’s business purpose, not based purely on how many previous implementations they purport to have successfully delivered

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Dates 8-12 May

Johannesburg

22-26 May

Durban

24-28 July

Johannesburg

21-25 August

Cape Town

16-20 October

Johannesburg

The fee includes course notes, lunch, teas and 14% VAT, but not accommodation. A list of the closest hotels is available on request. A fee of R500 will be charged if registration is cancelled within ten days of the course. Substitute delegates are welcome. Payment to The SA Institute of Tribology, on receipt of invoice. Course manual is available before the course to fully paid up delegates. For the purposes of travel, please note that this is a full five days with last day ending at 15:00. * Students to provide written proof of full time student registration.

The SAIT reserves the right to cancel or postpone the course if undersubscribed, or for any other reason, or to change the venue, and is not liable for any costs incurred by delegates or their sponsoring companies.

Contact Gill or Isabel at telephone, fax or e-mail below for more information: SAIT, PO Box 1240, Kelvin 2054, South Africa Banking details: The SA Institute of Tribology Nedbank Current Acc No 1970 490438 Sandton Branch code 197-005 Swiftcode NEDSZAJJ

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Tel: +27 11 804-3710 Fax: +27 (0) 86 719-2261 Email: secretary@sait.org.za Website: http://www.sait.org.za VOL 67

March 2017

The SAIT has a working liaison with the Society of Tribologists and Lubrication Engineers (STLE) and hosts their CLS, OMA and CMFS in Johannesburg each year

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SEW Overview advert SA Mechanical Engineer 25 March 2017.qxp_Layout 1 2017/02/08 2:53 PM Page 1

The company made use of a two part epoxy spray treatment and repeated insulation resistance tests under extremely wet coil conditions

Marthinusen & Coutts’ rotating machines design engineer, David Motloung, records photographic evidence of tests on one of the enormous gearless mill drive rotor poles recently refurbished by the company

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Let Us Find You The Job You Deserve

This was secured despite the pressure applied by the international OEM on the end user, who did not believe that a local service provider would be able to implement a quality refurbishment

We will “head hunt” you when appropriate jobs are received by us from our clients Join our live, confidential database.

A wide selection of engineering attributes are used to profile you and the job specifications. Jobs are then matched to your profile in accordance with your resume and stated career preferences.

• Engineers • Technologists • Technicians • and supporting specialist disciplines

Personal service and interaction with PROFESSIONAL ENGINEERS As Engineers, we speak your language Job positions described in detail on our website job boards Access us online at: www.engineerplacements.com or email: admin@engineerplacements.com

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S MECHANICAL A ENGINEER February 2017

M

Publication of the SA Institution of Mechanical Engineering, incorporating News of Associate Organisations

ECHANICAL ENGINEERING BUYERS GUIDE 2017

Celebrating 65 years in South Africa

ATMOSPHERIC HAZARDS IN CONFINED SPACES BUYING REFRIGERATION ON DEMAND

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Barry Elliott, MD of Rockwell Automation sub-

Saharan Africa

Enhanced accuracy as to the predictability of production and profitability means more skittish results presentations to shareholders can be avoided

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Sound capital investment decisions around where to spend, how much to spend, and how to rank this spend need to be based on accurate information received directly from your mining operations

FLUID TECHNOLOGY PRODUCTS THAT DELIVER

Our Range of Quality Fluid Technology Products include: • Lubrication Systems • Industrial Valves • Instrumentation

• Bulk Filtration Systems • Pneumatics • Hose & Fittings

• Industrial Filtration • Hydraulics • Pumps

For more information, contact our BMG Fluid Technology team: Tel: 011 620 1500 or 011 614 2004, fluidtech@bmgworld.net or your nearest BMG branch.

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Lubricants Business Manager at Engen Petroleum, John Kennedy

Engen refinery

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RELIABLE ENERGY SOLUTION for the entire mining sector.

17 15

16

1 3 2

14

4

13

12 5

11 10 9

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Power Tranformers Tiger RMU Overhead Lines MV Switchgear Mini Substations Mobile/Containerised Substations MV Motors E-Houses Distribution Transformers Motor Control Centres MV Slipring Motor MV Drive Automation Control Room Invicta Vibrator Motors Diesel Generator Electrical Construction LV Motors & Drives

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The Zest WEG Group, a subsidiary of leading Brazilian motor and controls manufacturer WEG, started out as a South African company and maintains its strong commitment to contributing to the development of the African region.

An in-depth understanding of the harsh conditions found within the mining sector and years of experience on the African continent, have ensured that the Zest WEG Group service offering is fit-forpurpose.

The Zest WEG Group has been servicing the mining sector for more than 35 years and by leveraging best practice engineering and manufacturing capabilities, the group is able to offer a range of standard off-the-shelf products as well as endto-end energy solutions.

From single product installations to individually customised solutions, which are application specific, the latest technology is used to ensure optimum performance and reliability without compromising on energy efficiency.

ZestWeg_771_mining_adv_SAMechEng_176x130.indd 1

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WEG products are engineered to facilitate a safe and reliable mine and plant with operational stability and the highest possible production levels as an objective.

Reduced maintenance and ease of serviceability assist in lowering the total cost of ownership for the mine.

Supporting customers is key and the Zest WEG Group operates a strategically situated network of branches and distributors across the continent. This ensures the highest levels of technical support as well as easy access to product and parts.

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SCAN HERE for more about our offerings in the mining sector

Tel: +27 11 723 6000

www.zestweg.com

2016/11/30 10:39 AM

POWER

GENERATION

T O D A Y

PROMECH PUBLISHING Tel: (011) 781-1401 Fax: (011) 781-1403 Email: samecheng@promech.co.za Website: www.promech.co.za Managing Editor: Susan Custers Editorial Contributors: Liesl Venter and Patricia Holburn Advertising: Louise Cresswell 071 886 1263 Circulation: Belinda Siegruhn DTP: Lindy Fobian Disclaimer PROMECH Publishing does not take responsibility for the opinions expressed by individuals.

Copyright

All rights reserved.

No editorial matter published in “Power Generation Today� may be reproduced in any form or language without written permission of the publishers.

While every effort is made to ensure accurate reproduction, the editor, authors, publishers and their employees or agents shall not be responsible or in any way liable for any errors, omissions or inaccuracies in the publication, whether arising from negligence or otherwise or for any consequences arising therefrom. The inclusion or exclusion of any product does not mean that the publisher or editorial board advocates or rejects its use either generally or in any particular field or fields.

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What is a fuel cell?

Fuel Cells are a family of technologies that utilise electro chemical processes rather than combustion to produce power. It utilises hydrogen as a fuel source and produces electricity and water. Fuel Cells can be classified as per three major applications: • Stationary • Mobile (vehicles) • Portable The 3 tonne Still forklift utilises a PEM (Proton Exchange Membrane) Fuel Cell.

Proton exchange membrane fuel cell

1

2

At the anode, a platinum catalyst causes the hydrogen to split into positive hydrogen ions (protons) and negatively charged electrons.

Hydrogen fuel is channeled through field flow plates to the anode on one side of the fuel cell, while oxidant (oxygen or air) is channeled to the cathode on the other side of the cell.

Hydrogen flow field

Backing layers Hydrogen Oxidant gas

3

Unused fuel Anode (negative)

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Oxidant flow field The polymer electrolyte membrane (PEM) allows only the positively charged ions to pass through it to the cathode.

The negatively charged electrons must travel along an external circuit to the cathode, creating an electrical current.

Water Cathode (positive) Polymer electrolyte membrane

March 2017

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At the cathode, the electrons and positively charged hydrogen ions combine with oxygen to form water, which flows out of the cell.

DC / DC

DC / DC

DC Motots

Battery (supercaps) AIR

FC

HEAT B: Refuelling system H 2 (O 2; CO); P~3 bar

Auxiliaries

A: Foklift’s fuel & power system

MH H 2 storage

Pure H 2 P>100 bar

MH H 2 purification & compression system

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H-Class

High-Performance Industrial Printers The H-Class is a rugged and versatile printer that is one of the industry’s most feature-rich solution for dynamic enterprise applications, while operating as fast as many printers in its class.

The H-Class is an ideal solution for high-volume label printing in manufacturing, warehouse, transportation and high-resolution labelling applications.

Features & Benefits Standard with ethernet, parallel, series & USB Durable die-cast frame

Multi-language menu

Large 240x320 graphical LCD display Versatile media compatibility support

Bartrans (Pty) Ltd. | Unit 1 Jan Smuts Business Park | Jones Road | Jet Park | Gauteng | South Africa sales@bartrans.co.za | O +27 11 552 8245 | F +27 11 397 8526 | www.bartrans.co.za

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Your boutique business destination Surrounded by lush gardens in the hub of Johannesburg’s northern suburbs, The Peartree in Craighall Park caters for groups of two through to 100 guests in nine well-appointed and equipped business suites.

Breakfast meetings, working lunches, indoor or outdoor dining, half-day and full-day packages including all welcome refreshments, teas and lunches are offered in Standard, Gold and Platinum packages.

Secure parking, business centre, fibre optic broadband AV, lockable space, and an onsite Hair & Beauty Boutique, all underpinned by highly qualified and helpful staff dedicated to ensuring your event is a success, make The Peartree a destination of choice.

www.thepeartree.co.za e-mail: info@thepeartree.co.za Tel: 011 781 1401 41 St. Albans Ave, Craighall Park

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Jan Botha, tube mill operator and Rodney Outram, Manager at CE Mobility, with the Unitherm solid state welder and upgraded mill installed and supplied

by Elquip Solutions

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Pieter van Wyk, Atlas Copco business line manager, oil-free air and Charl Ackerman, Atlas Copco business line manager, industrial air

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MARKET FORUM

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MARKET FORUM

Keeping It Clean Denver Dreyer, WorleyParsons SA CEO

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The African continent has high infrastructural demands and the materials washing solutions CDE Global develops, are ideal for quarrying and mining sectors supplying the construction market. By using CDE equipment, the environmental benefits are significant, not the least of which is that up to 90% of the water is recycled when a wet

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processing washing plant is combined with a CDE AquaCycle water recovery system.

A typical sand washing operation uses a minimum of a hundred thousand litres per hour, which is basically clean water being converted into waste water and then pumped or piped away into a set-

MARKET FORUM

tling dam, at which point it exits the washing system. With a CDE AquaCycle, 90% of this waste water is recycled for immediate reuse by the customer.

This minimises water consumption, and aids businesses to show compliance when reapplying for water licences.

CDE Global, www.cdeglobal.com

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FREE

STORAGE FOR 2 MONTHS FULL SERVICE, TURN-KEY WAREHOUSING IN WATERFALL

WHY WATERFALL?

• Full service warehousing in Waterfall, Buccleuch, Johannesburg • The ability to service all major centres in 1 – 3 days • Complete courier distribution infrastructure • Proprietary, full RF-WMS technology platform • Full racked distribution facility • Automated environment • Micro logistics to support Omni-channel efforts TO QUALIFY FOR THIS OFFER: Minimum 12-month fulfilment contract could be required TERMS AND CONDITIONS APPLY.

TO TAKE ADVANTAGE OF THIS OFFER: Contact: Mark Carmichael-Brown on 084 174 1067 or email m.carmichael-brown@cellc.co.za

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MARKET FORUM

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MARKET FORUM

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MARKET FORUM

On the Move

The Capital Equipment Group (CEG) of Invicta Holdings Limited, has appointed Ross Collard divisional managing director of CSE Equipment

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havas 15030/E

1

DOWN 2

1. The formula p=m•v is used to calculate.

2. The SI Unit for Pascals (the derived unit to quantify internal pressure).

3

3. The letter S in S=d/t is used to notate which scalar quantity?

4

4. Formula for the volume of a cube.

5

ACROSS 5. The equation stated by Émile Clapeyron in 1834 as a combination of the empirical Boyle’s law, Charles’ law and Avogadro’s Law commonly known as the ideal gas law.

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