Digital Control System for a Refrigerator Heat Pump for Spacecraft Environment 881044
This paper describes the development of a microcomputer based control system for a heat pump containing an electrical variable speed compressor drive and a motorized expansion valve. It is designed to operate under very much varying load conditions with minimum power consumption. Difficulties that were encountered during engineering tests could finally be overcome by a relatively simple, practical regulator configuration. It operates near optimum efficiency by regulating a certain temperature difference in the evaporator. Experimental data on operating characteristics and performance are included in the paper.
Citation: Parnitzki, D., "Digital Control System for a Refrigerator Heat Pump for Spacecraft Environment," SAE Technical Paper 881044, 1988, https://doi.org/10.4271/881044. Download Citation
Author(s):
D. Parnitzki
Pages: 16
Event:
Intersociety Conference on Environmental Systems
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE Transactions Journal of Aerospace-V97-1
Related Topics:
Control systems
Energy consumption
Pumps
Compressors
Valves
Spacecraft
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