| 摘要 |
An air cycle heat pump uses a regenerative heat exchanger to provide warm air to heat a load, while at the same time providing fresh air to the load. The stale air returned from the load is utilized as the refrigerant air in an electrically driven regenerative air cycle heat pump, and no additional heat exchangers are required, thereby significantly reducing the electric power needed for heating the load. A turbine-driven compressor is used to raise the stale load air in pressure and temperature and, after giving up some of its heat to the fresh ambient air used to heat the load, the compressed refrigerant air performs useful work in the expansion turbine before being returned to ambient.
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