A novel high efficiency reciprocating piston engine — the isoengine — is predicted to achieve net electrical efficiencies of up to 60% in units of 5 to 20 MWe size. The high efficiency and at the same time a high specific power output are achieved by integrating isothermal compression, recuperative preheating and isobaric combustion into a novel power cycle. The isoengine can utilize distillate oil, natural gas or suitable biofuels. While the first commercial isoengine is envisaged to have a power output of 7 MW, a 3 MW prototype engine is currently being tested. Since compression and combustion are performed in different cylinders, these processes can also be performed at different times such that the isoengine can be used to create a highly efficient small-scale compressed air energy storage (CAES) system. In such configuration, the engine can operate at more than 140% nominal load for a limited time, which depends on the air storage capacity.
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International Joint Power Generation Conference collocated with TurboExpo 2003
June 16–19, 2003
Atlanta, Georgia, USA
Conference Sponsors:
- Power Division
ISBN:
0-7918-3692-4
PROCEEDINGS PAPER
The Isoengine: A Novel High Efficiency Engine With Optional Compressed Air Energy Storage (CAES)
Anthony Price
Anthony Price
Electricity Storage Association, Morgan Hill, CA
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Claus Linnemann
Innogy plc, Swindon, UK
Mike W. Coney
Innogy plc, Swindon, UK
Anthony Price
Electricity Storage Association, Morgan Hill, CA
Paper No:
IJPGC2003-40063, pp. 873-880; 8 pages
Published Online:
December 17, 2008
Citation
Linnemann, C, Coney, MW, & Price, A. "The Isoengine: A Novel High Efficiency Engine With Optional Compressed Air Energy Storage (CAES)." Proceedings of the International Joint Power Generation Conference collocated with TurboExpo 2003. 2003 International Joint Power Generation Conference. Atlanta, Georgia, USA. June 16–19, 2003. pp. 873-880. ASME. https://doi.org/10.1115/IJPGC2003-40063
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