| 摘要 |
A heat engine includes a turbine ( 10 ), compressor ( 20 ), heat pump ( 30 ) and combustion source ( 40 ) and uses heated and compressed air as a motive fluid in an open Brayton cycle. In the process of the invention, the compressor pressurizes air ( 21 ) from the environment. A closed-cycle heat pump ( 30 ), having a high-temperature condensation side ( 33 ) and a low-temperature evaporation side ( 35 ), increases the energy in the compressed air through heat exchange with the high-temperature condensation side ( 33 ) of the heat pump. Upon heating in a constant pressure process, the motive fluid is expanded through the turbine ( 10 ). The combustion source ( 40 ), which is isolated from the motive fluid, further heats the low-temperature evaporation side ( 35 ) of the heat pump.
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