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U.S. Department of Energy
Office of Scientific and Technical Information

Heat pump systems for residential use

Patent ·
OSTI ID:6367155
A simplified heat pump design offers improved efficiency for residential heating or cooling in temperate climates, where temperature extremes rarely occur. Basically a reverse-Brayton-cycle heat pump, the device has a turbocompressor that can be driven by either a gas-fired recuperated Brayton engine or an electric motor. Besides the load heat exchanger, an additional sink heat exchanger adds waste heat from the drive unit to the air for space heating. Designers expect a heating coefficient of performance of 1.6 on a 45/sup 0/F day; below 45/sup 0/F, the system maintains its heating capacity and COP.
Assignee:
Garrett Corp.
Patent Number(s):
US 4347714
OSTI ID:
6367155
Country of Publication:
United States
Language:
English