Propulsion details of the Maersk Triple-E Class 18,000TEU Container ships

By Keith Henderson at February 24, 2011 06:49
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The Maersk Triple-E will be the world’s largest container vessel class yet the propulsion system is remarkable for its relatively small size and high efficiency. The adoption of a twin skeg propulsion system with two engines driving two propellers heralds a new era in container ship design producing the vessel’s world record efficiency. The lower speed of 23 knots, introduces the opportunity of using an engine with a lower rpm, such as the recently announced MAN B&W G series of ultra long stroke engines. Not only does the G series have a lower specific fuel consumption, it allows the use of a higher efficiency larger diameter propeller. The estimated net benefit for the Triple-E propulsion system is a four per cent energy saving over the PS class single screw system. [More]

Maersk Orders 10 Triple-E Class 18,000TEU Container Ships

By Keith Henderson at February 22, 2011 11:44
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Maersk Line has ordered 10 of the record breaking 18,000 TEU container ships from Daewoo Shipbuilding & Marine Engineering Co., Ltd. Korea for delivery 2013 to 2015. This new, giant container vessel class will be known as Triple-E, based on the three main purposes for their creation: Economy of scale, Energy efficiency, Environmentally improved. The dimensions of the new Class is LOA 400m, beam 59 m and height 73 m. The Triple-E Class is designed to reduce CO2 emissions and features Waste Heat Recovery equipment that will produce 50 percent less than the industry average on the Asia-Europe trade lane. Compared to the present largest container ships of around 13,000TEU, the Triple-E Class will offer a fuel saving of approximately 35 per cent per container. [More]

18,000 TEU Container Ships

By Keith Henderson at December 09, 2010 07:04
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There have been several reports in the recent press about an imminent order for several 18,000 TEU container ships for Maersk, to be built by Daewoo in Korea. MAN B&W published a detailed paper Propulsion Trends in Container Vessels in 2004 on the subject of how big ships will grow and concluded that the size of 18,000 TEU is the most likely ceiling. This size of ship, sometimes referred to as Malacca-max would require a propulsion power of 103,000 kW. These vessels could be powered by a single or twin engine arrangement. [More]

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