Space helium refrigerator
1981; Elsevier BV; Volume: 21; Issue: 8 Linguagem: Inglês
10.1016/0011-2275(81)90069-2
ISSN1879-2235
AutoresA. E. Salomonovich, T.M. Sidyakina, A.S. Khaikin, V. N. Bakun, A. A. Nikonov, V. A. Maslakov, E. I. Klimenko, V. N. Kurkin,
Tópico(s)Superconducting and THz Device Technology
ResumoThe description, main characteristics and flight tests results of the closed-cycles three-cascade helium refrigerator operating to 4.4 K are presented. The refrigerator is intended for the cooling far-infrared (submillimeter) detectors of the telescope BST-IM on board of the orbital station 'Salyut-6'. The cryogenic system which uses two high efficient gas cooling machines operating under Sterling cycle for the preliminary cooling at levels 80 K and 20 K and Joule-Thomson cooling effect to obtain the temperature 4.4 K, is compact and simple to operate in automatic regime. The first space helium refrigerator described provides the useful refrigeration of 0.5 W with power requirements of less than 1.5 kW. According to the data obtained during more than two years flight tests on board of 'Salyut-6', all the refrigerator's systems operate within the limits of standards and provide the reliable cooling of the telescope's detectors.
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