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Issue 1

January 2011

GREEN HORIZONS Welcome to Green Horizons, Eniram‟s Newsletter Inside this issue: Hamburg Süd anticipate $4mil savings with Eniram


Employee Spotlight


Green accolades for Eniram


Hapag Lloyd installs DTA




Welcome to the first edition of Green Horizons, our newsletter aimed at providing you with the latest shipping views, news and technology developments that we hope you find valuable. This issue, our Insight topic „Taking the Guesswork out of Trim‟, will provide some clarity around static and dynamic trim, as well as the deviation in trim measurements which is often overlooked. We will also provide answers to your frequently asked questions in each issue; such as „how is trim measured?‟, and „what systems are integrated into your technology?‟, as well as over ways in which we are helping some of our customers to reduce fuel costs and improve their environmental footprint. I hope you enjoy the read. Philip Padfield, CEO

Nautical Insight: Taking the Guesswork out of Trim


By Tero Ilus, Captain—Commissioning Manager

here was a time when seafarers, like myself, could depend on their own sense for finding a good sailing trim; some even trying to read the wake of the ship to make trim decisions. Today, with larger vessels, increased speeds and more sophisticated hull forms, trim sensitivity has increased. Sailing just ten centimetres off optimal trim can mean the difference of several tonnes of fuel being lost every day. Calculating the optimum trim with model and tank testing can provide reasonable results, but up until Eniram UK Ltd +44 118 927 2872

recently, the crew could only monitor the vessel‟s trim with stability calculators. These work out the static trim of the vessel, and do not take into account the effects of dynamic, real time conditions such as wind, waves and squatting. This is the equivalent of putting a new car on the market without testing it on the road first!

A Captain‟s perspective on finding the optimum trim

Interestingly, not all vessels have real time stability calculators on board. Many of the ships only know their trim at the time of departure when they read the draft marks from the pier. Once the vessel leaves the harbour, they can only

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Nautical Insight Continued guess or calculate by hand the effects of changing factors on the trim, such as the vessel‟s speed, and the weather. In many cases, the officers on watch have limited knowledge of the bunker and water transfers onboard (grey/fresh water), and are therefore not aware of the Next issue’s Insight topic: effects of this activity on the Results from a 4 month study trim. To add to the discontinuity, on board a 5500 TEU container b a l l a s t operations can vessel. Measuring the Effects sometimes be done by another of Real Time Trimming on Fuel crew on watch, and information Efficiency and Environmental is not passed on during the Performance. watch changeover.

„...Had they been trimming the vessel dynamically, they would have been able to save 700 tonnes of fuel annually*...this equates to $245,000 savings…‟

This magazine is printed on recycled paper

The question of finding the right trim during sailing has been pondered a lot over the years by vessel captains. One captain had rigged a 300m long garden hose through the whole ship to measure the vessel‟s dynamic trimming and made a table of the vessel‟s speed, power and dynamic trim. Many vessels have had smaller bubble level indicators rigged to the bridge, but even at light sea conditions, the vessel can start to vibrate, and the bubble level becomes unreadable. From my experience carrying out nautical commissioning, most crews have a good grasp of the difference between static and dynamic trimming, but what is not always so widely recognised is the difference in trim measurements. What mostly surprises the crew I meet is the magnitude of trimming their vessel dynamically, and sometimes the trim angle is a revelation. On board one vessel, the crew thought that the vessel trimmed 10-20cm by the stern

at full speed - when actually, she trimmed 30cm by the bow. We have been measuring the deviations between static and dynamic trim on several Panamax-size cruise vessels, and the results are as follows; · · · ·

As a result of these statistics, the crew had been sailing 30-40cm off the estimated trim. On average, 25 cm off -trim equates to 2% in propulsion power for a cruise vessel. So, had they been trimming the vessel dynamically, they would have been able to save 700 tonnes of fuel annually*. Based on HFO at $350 per tonne, this equates to $245,000 savings, a notable impact for just a few centimetres. Eniram‟s Dynamic Trimming Assistant (DTA) takes dynamic forces into account to calculate and display the optimum trim in real-time. This represents a fundamental shift from other systems that depend on static trim charts that are recorded per load or route. If you have any questions relating to this insight topic, please email them to me at: * These calculations are based on an ave rag e p an ama x v es sel th at consumes 100 tonnes of fuel per day.

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Squat: 200cm Speed: 70cm Wind: 40cm Passenger movements: 7cm

DTA‟s real-time optimum trim display Eniram Oy (Finland) +358 10 843 3800

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Customer Spotlight: Hamburg Süd Anticipates Fuel Savings of Over $4 Million in First Year by Using Dynamic Trimming Solution A four-month trial of Eniram's Dynamic Trimming Assistant provided all the evidence that Hamburg Süd needed. This leading carrier is now installing the solution across its fleet of large container ships, and expects to reduce fuel consumption by up to 5%. Eniram installed DTA on the Aliança Maua (pictured), a 5500 TEU container ship measuring 272 meters by 40 meters. For a period of 136 days, DTA collected detailed information about the prevailing trim, propulsion power, weather, speed and movement of the Aliança Maua, as it undertook its routine journeys.


At the end of the trial period, Eniram analysed the actual trim (as sailed by the crew), and the optimum trim (as calculated by DTA). It then provided Hamburg Süd with a report that detailed precisely what cost savings could have been made with a certain rate of usage, had crew had access to that information and had adjusted the trim accordingly.

"We expect to gain return on this initial investment in less than a year," says Fred Deichmann, Managing Director of Columbus Shipmanagement. "Based on current fuel prices and our anticipated sailing schedule, we expect to make savings of approximately US $4 million in the first year."

The results of the trial were conclusive. The report showed a potential average saving of 5% of fuel costs, and a likely average saving of 3%. During the period of the trial, Eniram calculated that Hamburg Süd could have reduced its Heavy Fuel Oil consumption for the Aliança Maua by 350 metric tonnes. Even if the company only achieved „optimum trim' for 80% of the time, it would have reduced its Heavy Fuel Oil consumption by 280 metric tonnes. This corresponds to an annual reduction in costs of US $375,000, based on December 2009 fuel prices.

„This corresponds to an annual reduction in costs of US $375,000 (per vessel)‟

Employee Spotlight: Visa Roine Eniram is proud to employ a unique combination of marine experts, software designers, naval architects and captains, so we will introduce you to a different member of the team each issue. As a qualified mariner, Visa has over 25 years experience in the marine industry, and has managed projects onshore, as well as offshore. Visa applies his maritime expertise by identifying customer

requirements, and verifying that those requirements are met by the product development team. Visa sails wooden sailing vessels and is an expert adviser of the Historic Ships‟ Register of the National Board of Antiquities in Finland. Visa recently spoke at the Lehmann & Michels Marine Day in Hamburg on “Dynamic Trimming Assistant for fuel efficiency onboard container vessels” .

Pictured: Visa Roine, Nautical Consultant Visa is happy to answer any of your questions, drop him an email

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Eniram News: Hapag Lloyd Show Commitment to the Environment with Trim Technology


e are delighted that one of the largest container shipping lines in the world, Hapag Lloyd, will be installing the first trial phase of the Dynamic Trimming Assistant (DTA) on board the Osaka Express . This will add another environmentally friendly initiative to their green portfolio, as well as providing transparency into the carbon footprint of their supply chains.

So far, DTA has demonstrated fuel consumption savings of 1% - 5%

Hapag-Lloyd was one of the first shipping companies to reduce the speed of its vessels, which significantly reduces fuel consumption and environmental impact. The installation of DTA adds another environmentally-friendly initiative aimed at reducing the carbon footprint of their ships and to provide the ‟green‟ logistics solution that shippers are continuing to demand. So far, DTA has demonstrated fuel consumption savings of 1% -

5% on similar vessels. DTA has been deployed successfully by another key international container line, as well as major cruise lines, where the proven fuel reduction from the system has led to the rollout of DTA across their fleet. Osaka Express, along with its 17 sister ships, is a 8,750 TEU vessel and will have 3 Eniram attitude sensors installed to ensure an accurate measure of current trim can be calculated at all times. „I am delighted that Hapag-Lloyd joins our growing list of world class shipping companies implementing DTA as part of their continuous improvement initiatives to reduce fuel consumption and minimise emissions‟ commented Philip Padfield, CEO of Eniram. „We are absolutely committed to helping Hapag Lloyd to achieve its operational efficiencies and play a part in their emissions reduction goals‟.

Seatrade Insider Cruise Award: Eniram is „Highly Commended‟ Eniram has been celebrating a record breaking year after receiving 6 shortlisted nominations and wins for various environmental initiative and company achievement awards. Accolades include Seatrade Global Awards (April), Sustainable Shipping Awards (May) Red Herring Europe 100 (May), Tech Tour 30 (June), Clean Tech Connect (November) and Seatrade Insider Cruise Awards (November).

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Eniram UK‟s Martin Penney (centre) receives the award at the 2010 Seatrade Insider in Nice

At the recent Seatrade Insider Cruise Awards in November (pictured), Eniram picked up a „Highly Commended Award‟ for „Environmental Initiative of the Year‟. Eniram Oy (Finland) +358 10 843 3800

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In sid e St ory H ead lin e

FAQs: Ask the Experts Here we call on our maritime experts to answer some of the frequently asked questions that we receive: Q)

How is the trim measured?

A) Trim measurement is based on attitude sensors provided by Eniram. The attitude sensors are very precise inclinometers, which operate to a high frequency, and provide the attitude information with 0.01 degree accuracy. Q) What systems are integrated to Eniram Vessel Management System and why? A) The VMS is integrated to several different systems onboard - the IBS (Integrated Bridge System; usually

You can find more detailed answers to these questions at: faq

a radar system) and the IAS (Integrated Automation System) being the two most common. This is done to collect data relating to the performance of the vessel, enabling us to determine the optimum trim, or to use it for analysing performance of a vessel or a fleet of vessels. Q) What is the accuracy of the sensors you use? A) Eniram deploys 2 or more high accuracy attitude sensors per vessel, in order to take into account the dynamic bending and torsion. Deflection cannot be measured with a single sensor and therefore, dynamic trim readings on a multi-sensor installation are more accurate.

If you have any unanswered questions, please email them to

Company News: Royal Caribbean Allure of the Seas Tour


ack in October, the Eniram Product Management and Marketing department was fortunate enough to be invited to the STX Europe‟s shipyard in Turku, Finland to see the team put the finishing touches on the largest cruise vessel in the world, the Allure of the Seas, before it was handed over to Royal Caribbean Cruises Ltd (RCCL).

The Allure of the Seas is one of several Royal Caribbean cruise ships to have the Dynamic Trimming Assistant (DTA) product on board to help run the vessels as efficiently as possible and forms part of a wider approach taken across the fleet to minimise carbon footprint.

Pictured (from left to right): Martti Jakobsson, Satu Lipponen, Jessica Davies, Tiina Turpeinen, Esa Ylinen

Eniram Events 2010 In March and December last year, we began our series of web seminars aimed at helping shipping companies to learn more about dynamic trimming. The December web seminar, titled „Energy Efficiency Solutions: Big Promises Made, Can They Be Quantified?‟ saw our Nautical Consultant, Visa Roine, explaining the latest developments in cutting shipping fuel costs. Eniram UK Ltd +44 118 927 2872

There will be one further seminar in our series, to be held in March — please see overleaf for more details, or visit our events page at www.eni y/n ews events The recordings of our previous web seminars are available online for you to download and watch in your own time.

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You can sign up to attend our webinars by following the link on our homepage (

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Finally: Eniram in Numbers Up to


Fuel savings seen by our customers through using DTA

$4m 0.01

The expected savings for Hamburg Süd in one year

6,000 The tonnes of CO2 per year saved by Carnival Cruise lines through using DTA

The fraction of a degree to which our sensors are accurate

Industry News: Handpicked articles of interest Shipping Industry Targets CO2 Emissions Reductions, Verification In addition to implementing carbon emissions and fuel reduction measures such as Hapag-Lloyd‟s use of new dynamic trim technology, shipping lines like Maersk are taking it one step further by verifying their CO2 data. Read h er e: h ttp://ti n yu rl .com/ environmental-leader-article

Maersk Says Slow Steaming Here to Stay Even as the global economy rec ov er s sl ow st eami n g "remains a win-win situation," said Maersk Line CEO Eivind Kolding. Despite the extra ships, Maersk has cut its CO2 emissions by around 7 percent per container transported over the past 18 months. Read here:

Green Ship Technology Book This 20 page guide, produced earlier this year, provides a useful insight for any company looking at technologies to benefit the environmental impact of ships. The book gives a look into existing green technology, and where future developments could be made. You can find version at:




Forthcoming Events Our web seminar series, „On Course to Energy Efficient Seafaring‟ will assist in identifying where energy efficiencies can be gained, how to quantify the performance, and how other operators in the shipping industry have already been able to leverage fleet performance data to make strategic decisions. There will be a further seminar in March.

To sign up for our web seminars, head to

Web Seminar: Energy to Save: Realising fuel savings of up to 5% Date: 29th March 2011 at 14:00 (CET) For further information and to register, please go to

Newsletter Editor: Jessica Davies

Our Nautical Consultant, Visa Roine, will also be speaking at the 8th Annual Green Ship Technology Conference in Oslo on 23rd March 2011. For further information, please go to our website ( Eniram UK Ltd +44 118 927 2872

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For comments, queries or stories, please e-mail:

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Green Horizons, Issue 1  

Eniram sends out regularly a complimentary newsletter, ‘Green Horizons', giving an insight into the latest technological developments in the...