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Q-Max is a type of ship, specifically a membrane type liquefied natural gas carrier. In the name Q-Max, "Q" stands for Qatar and "Max" for the maximum size of ship able to dock at the LNG terminals in Qatar. Ships of this type are the largest LNG carriers in the world.〔〔 〕 ==Technical description== A ship of Q-Max size is long and measures wide and high, with a draft of approximately .〔〔 〕 It has an LNG capacity of , equal to of natural gas. It is propelled by two slow speed diesel engines, which are claimed to be more efficient and environmentally friendly than traditional steam turbines.〔 〕 Q-Max vessels are equipped with an on-board re-liquefaction system to handle the boil-off gas, liquefy it and return the LNG to the cargo tanks.〔 〕 The on-board re-liquefaction system allows a reduction of LNG losses, which produces economic and environmental benefits. Overall, it is estimated that Q-Max carriers have about 40% lower energy requirements and carbon emissions than conventional LNG carriers.〔〔 〕 The quoted estimates do however ignore the additional fuel used to re-liquify boil off gas rather than burn the gas for fuel. The ships can be converted to use the boil-off gas but as of February 2013 none have yet been converted. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Q-Max」の詳細全文を読む スポンサード リンク
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