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SAFETY4SEA

PERFECt partners prepare COGES LNG boxship for order book

by The Editorial Team
June 1, 2017
in Green Shipping, Nor-Shipping 2017
perfect

PERFECt II at Nor-Shipping 2017 (from left to right): Thomas Eefsen, Chief Commercial Officer, OMT; Pierre Sames, Group Technology and Research Director, DNV GL; Barbara Stanley, Vice President Power Generation, Caterpillar Solar Turbines; Julien Bec, Vice President LNG as Fuel GTT; Juha Koskela, Managing Director ABB Marine & Ports

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At the Nor-Shipping event in Oslo, on May 31st, project partners ABB, OMT, GTT, Caterpillar’s Solar Turbines, CMA CGM, its subsidiary CMA Ships, and DNV GL, presented the results of phase II of the PERFECt joint industry project (JIP). Phase II of the project looked to validate the phase I results and develop the concept to a “ready to order” stage.

The PERFECt JIP looked at the potential of developing an electric-driven 20,000 TEU ultra large container vessel (ULCV) with an LNG-fuelled combined cycle gas and steam turbine (COGES) electric power plant. The goals for the project were to to utilize LNG as a primary fuel for an ultra-low emissions profile, in a design with at least the same carrying capacity and efficiency as existing ULCCs.

“The impulse behind this project was the interest in seeing how a modern ultra large container ship design could benefit from clean fuel and highly efficient COGES technology. We have achieved our objectives and now have a validated design concept with enough technical detail to develop a business case”, noted Gerd Würsig, Business Director for LNG-fuelled ships at DNV GL – Maritime.

As the project partners explain, the use of combined gas and electric steam turbine (COGES) systems, in combination with an all-electric design, offered several advantages. Propelling the ship with electrical motors enabled the power generation and propulsion systems to be placed in separate sections of the ship. In addition, the COGES system provided power for both propulsion and auxiliary systems, so an engine room was not needed any more and the power plant, together with the integrated LNG tanks, could be moved below the deck house – freeing up considerable space for more container slots.

“The COGAS electric propulsion system provides larger flexibility for arrangement of containers in combination with a high overall propulsive efficiency of the vessel,” said Thomas Eefsen, Chief Commercial Officer, OMT.

In addition to the improved overall arrangement of the vessel, a tailored hull shape and new propeller design add to the overall efficiency. The novel hull form with vertical bow is tailormade to the operational profile of the vessel, and with a high efficiency propeller in combination with a contra-rotating pod, the total propulsive efficiency is increased by around 5 per cent.

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“The PERFECt project impressively demonstrates how the innovative coupling of established technologies can generate new options for marine propulsion,” said Prof. Dr.-Ing. Christoph Pels Leusden, Beuth University of Applied Sciences Berlin.

PERFECt partners prepare COGES LNG boxship for order bookPERFECt partners prepare COGES LNG boxship for order book
PERFECt partners prepare COGES LNG boxship for order bookPERFECt partners prepare COGES LNG boxship for order book
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