Development of a Nonazeotropic Heat Pump for Crew Hygiene Water Heating 911341
Foster-Miller, Inc., is currently developing a heat pump system to produce hot water for crew hygiene on future manned space missions. The heat pump utilizes waste heat sources and a nonazeotropic working fluid in a highly efficient cycle. The potential benefits include a reduction in peak power draw from 2 to 5 kW for electric cartridge heaters, to just over 100W for the heat pump. As part of the heat pump development program, a unique high efficiency compressor was developed to maintain lubrication in a zero-gravity environment. Initial testing has resulted in measured COPs of 8.5.
Citation: Walker, D. and Deming, G., "Development of a Nonazeotropic Heat Pump for Crew Hygiene Water Heating," SAE Technical Paper 911341, 1991, https://doi.org/10.4271/911341. Download Citation
Author(s):
David H. Walker, Glenn I. Deming
Affiliated:
Foster-Miller, Inc.
Pages: 11
Event:
International Conference On Environmental Systems
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Space Station Eclss and Thermal Control-SP-0875
Related Topics:
Waste heat utilization
Pumps
Compressors
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