A Vuilleumier refrigerator for spaceborne applications is under development with the following performance goals: a cooling power of simultaneously 1 watt at 50 K and 5 watts at 190 K for an overall electrical consumption less than 250 watts. The main features necessary for long-life operation (over 50000 hours) are the use of contactless hydrodynamic gas bearings, clearance seals and magnetic rotato-reciprocating actuators. The feasibility of all critical components has been proven. A first prototype of a thermal compressor with a bearing at its warm end (1000 K) has been built and tested. The design of a refrigerator engineering model presently under construction is presented
A Vuilleumier refrigerator for long-life spaceborne applications
Eine Vuilleumier-Kühleinrichtung für lange dauernde Raumfahrt-Anwendungen
Thirteenth International Cryogenic Engineering Conference ICEC 13, 24-27 April 1990, Beijing, China ; 277-281
Cryogenics ; 30 , Suppl.
1990
5 Seiten, 2 Quellen
Aufsatz (Zeitschrift)
Englisch
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