An Apparatus for the Measurement of Regenerator Performance in Pulse Tube Refrigerators

  • Wayne Rawlins
  • Ray Radebaugh
Chapter
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 35)

Abstract

This paper discusses the design and construction of an apparatus to measure the ineffectiveness of regenerators used for pulse tube refrigerators. Because of the fairly large mass flow rates which occur in pulse tube refrigerators, the regenerator ineffectiveness must be made quite small. The apparatus described here allows for the measurement of the regenerator’s heat loss under actual operating conditions in a pulse tube refrigerator. A low temperature heat sink of liquid nitrogen is used since it approximates the temperatures normally achieved in a one-stage pulse tube.

Keywords

Graphite Convection Enthalpy Helium Flange 

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References

  1. 1.
    R. Radebaugh and S. Herrmann, in: Proceedings of 4th International Cryocooler Conference, p. 119 (1986).Google Scholar
  2. 2.
    R. Radebaugh et al., A comparison of three types of pulse tube refrigerators: new methods for reaching 60 K, in: “Advances in Cryogenic Engineering,” Vol. 31, Plenum Press, New York (1986), p. 779.CrossRefGoogle Scholar
  3. 3.
    R. Radebaugh, K. Chowdhury, and J. Zimmerman, Proceedings of the Fifth International Cryocooler Conference, 1988, p. 113.Google Scholar
  4. 4.
    J. E. Coppage and A. L. London, The periodic-flow regenerator: a summery of design theory, Trans. ASME 75: 779 (1953).Google Scholar
  5. 5.
    R. Radebaugh, D. Linenberger, and R. O. Voth, Methods for the measurement of regenerator ineffectiveness, in: “Refrigeration for Cryogenic Sensors and Electronic Systems,” NBS special publication 607 (1981), p. 70.Google Scholar
  6. 6.
    T. E. W. Schumann, Heat transfer flowing through a porous prism, J. Franklin Inst. 308, No. 1: 405 (1929).Google Scholar
  7. 7.
    G. L. Locke, Heat transfer and flow friction characteristics of porous solids, Stanford University Technical Report No. 10, Office of Naval Research (NR-035–104), June, 1950.Google Scholar
  8. 8.
    J. C. Bell and E. F. Katz, A method for measuring surface heat transfer using cyclic temperature variations, Heat Trans. and Fluid Mechanics Institute p. 243 (1949).Google Scholar
  9. 9.
    J. H. Stang and J. E. Bush, The periodic technique for testing compact heat exchanger surfaces, Stanford University Technical Report No. 67, Office of Naval Research (NR-090–342), Jan. 1968.Google Scholar
  10. 10.
    P. Storch and R. Radebaugh, Development and experimental test of an analytical model of the orifice pulse tube refrigerator, in: “Advances in Cryogenic Engineering,” Vol. 33, Plenum Press, New York (1988), p. 851.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Wayne Rawlins
    • 1
  • Ray Radebaugh
    • 1
  1. 1.Chemical Engineering Science Division National Institute of Standards and Technology BoulderUSA

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