The isoengine: realisation of a high-efficiency power cycle based on isothermal compression

Claus Linnemann and Mike W. Coney

International Journal of Energy Technology and Policy, 2005, vol. 3, issue 1/2, 66-84

Abstract: A novel high-efficiency internal combustion engine for power generation and direct-drive applications is being developed. Distillate-fuelled power plants in units of 7 MW electrical output are predicted to reach a net electrical efficiency of 60%. An efficiency of 58% is targeted for the gas-fired version. This compares with a net electrical efficiency of about 45% for advanced reciprocating engines of similar output but conventional design, and represents a step change in the efficiency of distributed power plant. Besides distillate oil and natural gas, the engine will be able to use suitable biofuels for efficient power generation. A 3 MW prototype engine using the full-scale engine geometry has been built to confirm the performance of the isoengine cycle. A partnership agreement has been signed by RWE Innogy and Mitsui Engineering and Shipbuilding for the future testing and development of the engine.

Keywords: reciprocating internal combustion engine; isothermal compression; high efficiency; distributed generation; CHP; combined heat and power; recuperator; compressed air energy storage; high-temperature fuel cells; power generation; direct-drive; distillate oil; natural gas; biofuels; isoengine. (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (1)

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