Abstract
A saturated vapor helium compressor was designed and tested as a component of a helium-temperature refrigeration cycle. The use of the cold compressor allows reduction of both the precooling heat exchanger area and main compressor size compared to a conventional cycle due to increased pressure of the return gas. The compressor tested was a single-piston reciprocating device which was controlled with programmable hydraulic/pneumatic logic. The compressor was mounted at the cold end of a CTI Model 1400 helium liquefier. An average compression ratio of 2.4 was obtained and an average efficiency of 82% was achieved. In computing compressor efficiency, external heat leaks to the compressor were neglected.
Work supported by Daikin Industries, Ltd., Osaka, Japan. Based on a part of the thesis submitted by Jill L. Ludwigsen in partial fulfillment of the requirements for a degree of Master of Science in Mechanical Engineering at the Massachusetts Institute of Technology, May 1985
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References
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© 1986 Plenum Press, New York
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Ludwigsen, J.L., Smith, J.L., Iwasa, Y. (1986). Configuration and Testing of a Saturated Vapor Helium Compressor. In: Fast, R.W. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 31. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2213-9_76
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DOI: https://doi.org/10.1007/978-1-4613-2213-9_76
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