NASA NTRS · 19880003327
Two-watt, 4-Kelvin closed cycle refrigerator performance
Abstract
A 2-watt, 4-K helium refrigerator using the Gifford-McMahon/Joule Thomson cycle is described. The unit features a removable displacer cylinder and high-efficiency, low-pressure drop heat exchangers. These improvements result in a 100 percent increase in cooling power over the existing Deep Space Network system. The effects of the heat exchanger efficiency and Gifford-McMahon expander performance on refrigerator capacity are also discussed.
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Britcliffe, M.. 1987-11-15. Two-watt, 4-Kelvin closed cycle refrigerator performance. https://ntrs.nasa.gov/citations/19880003327
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