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The Rolls-Royce WR-21 is an advanced marine gas turbine engine, designed with a view to powering the latest naval surface combatants of the partner nations, and currently fitted to the Type 45 destroyer of the Royal Navy. Developed with some government funding input from the UK, France and the United States, the WR-21 was designed and manufactured by an international consortium primed by Northrop Grumman. The turbine itself was designed primarily by Rolls-Royce with significant marine engineering and test facility input from DCN. ==Characteristics== The WR-21 is the first aeroderivative gas turbine to incorporate Gas compressor intercooler and Exhaust heat recovery system (ICR) technologies that deliver low specific fuel consumption across the engine's operating range. It offers a reduction in fuel burn of 30% across the typical ship operating profile.〔(【引用サイトリンク】title=WR-21 engine selected for Royal Navy type 45 destroyers )〕 *The intercooler cools air entering the high pressure compressor, reducing the amount of energy required to compress the air.〔 *The recuperator preheats the combustion air by recovering Waste-to-energy from the exhaust, improving cycle efficiency and reducing fuel consumption.〔 WR-21 development draws heavily on the technology of the successful Rolls-Royce RB211 and Trent families of gas turbines.〔 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「Rolls-Royce WR-21」の詳細全文を読む スポンサード リンク
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