DOE EERE Research Reports

Thermally Activated Heat Pumps

Engine Driven Heat Pumps: Internal Combusion (IC) Engines, Stirling Engines, Brayton Cycle, and Rankine Engines

Heat engines can be used to drive a refrigerant compressor in a reverse Rankine heating or cooling cycle. While engines may use recovered waste heat or solar energy as the motive force, most use either liquid or gaseous fossil fuel combustion. The Department of Energy (DOE) funded developments in:

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