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Numerical Analysis and Experimental Verification of Multi-Bypass Pulse Tube Refrigerators

  • Chao Wang
  • Jinghuei Cai
  • Yuan Zhou
  • Suqing Wang
Part of the A Cryogenic Engineering Conference Publication book series (ACRE, volume 41)

Abstract

Numerical analysis and experiment were performed to study the effects of the middle-bypass valve on the performance of multi-bypass pulse tube refrigerators (MPTR). Numerical predictions reveal the energy transportation and two refrigeration processes occurring in MPTR. The compared results verified that the multi-bypass version improved the performance of the refrigerator in a low temperature range. A lowest temperature of 23.8K was obtained with the MPTR of one middle-bypass tube. A MPTR of two middle-bypass tubes was first constructed and reached a temperature of 24K.

Keywords

Heat Exchanger Mass Flow Rate Pulse Tube Bypass Valve Enthalpy Flow 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1996

Authors and Affiliations

  • Chao Wang
    • 1
  • Jinghuei Cai
    • 1
  • Yuan Zhou
    • 1
  • Suqing Wang
    • 1
  1. 1.Cryogenic LaboratoryChinese Academy of SciencesBeijingChina

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