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Heat-Transfer and Flow-Friction Characteristics of Dense-Mesh Wire-Screen Stirling-Cycle Regenerators

  • G. Walker
  • V. Vasishta
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 16)

Abstract

A substantial program of research on miniature cryogenic cooling engines operating on the Stirling cycle is presently in progress. One part of this work involves the digital-computer simulation of the cycle which in turn requires accurate and detailed knowledge of the heat-transfer and friction characteristics of the matrix material used for the contraflow thermal regenerator of the Stirling cycle. It has been found by experience that the matrix material for Stirling-cycle regenerators must be more finely divided than the materials characteristically used for gas-turbine and air-preheater regenerative heat exchangers. This is because the porous volume of the Stirling-cycle regenerator constitutes a substantial part of the dead volume in the total working space of the machine, and any increase in the dead volume has a highly deleterious effect on machine performance because of the reduced pressure ratio. Very dense-mesh wire screen has proved to be a satisfactory material for the regenerators of small Stirling-cycle cryogenic cooling engines.

Keywords

Nusselt Number Wire Diameter Friction Characteristic Phosphor Bronze Fanning Friction Factor 
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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References

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Copyright information

© Springer Science+Business Media New York 1971

Authors and Affiliations

  • G. Walker
    • 1
  • V. Vasishta
    • 2
  1. 1.The University of CalgaryCalgaryCanada
  2. 2.Control Data CorporationTorontoCanada

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