Digital Control System for a Refrigerator Heat Pump for Spacecraft Environment

Format:

Conference/Event

Author/Creator:

Parnitzki, D., author.

Conference Name:

Intersociety Conference on Environmental Systems (1988-07-11 : San Francisco, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1988

Summary:

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

Notes:

Vendor supplied data

Publisher Number:

881044

Access Restriction:

Restricted for use by site license