A new type of high efficiency reciprocating internal combustion engine, which is predicted to achieve an electrical efficiency of up to 60% on diesel fuel or 58% on natural gas, is described with particular focus on the engineering of its novel components. The so-called isoengine, which is being developed by Innogy plc, involves quasi-isothermal compression of combustion air. In commercial applications it is envisaged that the engine will run at 600 rpm and produce 7 MW of electric power. The engine will also be capable of producing up to 3 MW of heat in the form of hot water, with the electrical efficiency reduced by two percentage points. The engine is intended for distributed and on-site power generation with the option of switchable co-generation of hot water for industrial use or for space heating. A 3 MWe engineering demonstrator is currently under construction.
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Engineering Aspects of a Novel High Efficiency Reciprocating Internal Combustion Engine
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Coney, MW, Cross, AM, Linnemann, C, Morgan, RE, & Wilson, B. "Engineering Aspects of a Novel High Efficiency Reciprocating Internal Combustion Engine." Proceedings of the 2002 International Joint Power Generation Conference. 2002 International Joint Power Generation Conference. Scottsdale, Arizona, USA. June 24–26, 2002. pp. 935-943. ASME. https://doi.org/10.1115/IJPGC2002-26047
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