Maritime Energy Pavilion will energize Sea-Air-Space Expo

The Office of Naval Research will be joined by numerous companies highlighting the latest technological advances in the fields of reduced energy consumption, alternative fuels and power systems at Sea-Air-Space Maritime Energy Pavilion. [More]

Reducing Air Drag

By Keith Henderson at August 22, 2010 09:58
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Since 2008, there is a UK based shipping environmental charity called Greenwave that strives to develop policies that not only encourage but reward ship owners for the early adoption of technologies designed to reduce emissions. Their emphasis is on new technical solutions rather than improving existing best practices such as hull and propulsion machinery maintenance, weather routing etc.One of two wind related projects is Turbo-foil, which seeks to reduce the aerodynamic drag of ships. While much attention is devoted to hydrodynamic design, the aerodynamic design, streamlining of ships hasn't changed much over the years with the exception of warships, cruise ships and mega yachts. Tests carried out in the wind tunnel at the University of Auckland has identified where the turbulence is greatest, and where fairing should be mounted to reduce drag. According to Greenwave, practical tests demonstrate that Turbo-foil can reduce above deck drag by at least 20 per cent equivalent to an annual saving of 50 tons of fuel and 150 tons of CO2 production.


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Experiments to curtail CO2 emissions

By Keith Henderson at June 06, 2010 13:12
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Projects running with NYK Line ships under the Japanese Ministry of Land, Infrastructure, Transport and Tourism are investigating technological developments to curtail CO2 emissions from marine vessels. In the main project, two NYK ships, are equipped with an air blower to supply air to the vessel's bottom to reduce frictional resistance. Mitsubishi Heavy Industries supplied the engines and is also participating in the experiment. It was decided that, a module carrier, would be best type of vessel for this experiment. she has a wide, shallow-draft hull minimizing the energy required by the electrically blower supplying air to the vessel's bottom and should better retain the supplied air under the vessel's bottom.
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