Compact Joule-Thomson Refrigeration Systems 15–60°K
Small open-cycle refrigeration systems have been designed and built for developmental and operational systems involving infrared detectors , cryopumping , electron microscopes , and ion emission microscopes . They utilize the Joule-Thomson expansion of hydrogen for providing 1/2 to 2 watts of useful refrigeration in the range of 15 to 60°K. Refrigeration is supplied below the inversion temperature by Joule-Thomson expansion of high-pressure nitrogen, or by liquefied nitrogen, Closed-cycle neon or hydrogen systems have also been designed and are being tested.
KeywordsHeat Exchanger Refrigeration System Finned Tubing Heat Leak Exchanger Design
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