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Experimental research and numerical simulation on mixed-refrigerant flow in adiabatic capillary tube in the 120 K temperature range for Joule-Thomson cryocoolers.

Author(s) : QI Y. F., GONG M. Q., CAO Y., et al.

Summary

For the low refrigeration temperature ranges, especially different working fluids in the mixed-refrigerant Joule-Thomson cryocooler, the refrigerant flowing characteristics in the capillary tube expansion device are different from those of household refrigerators. In order to study the capillary tube flowing process with mixed-refrigerant in cryocoolers, a setup based on the refrigeration cycle is established. In the paper, the 120 K temperature range experimental setting is introduced, and a separated flow model is developed to simulate the thermal and fluid-dynamic behaviour of the capillary tube. Comparisons of the predicted results and the experimental results are presented.

Details

  • Original title: Experimental research and numerical simulation on mixed-refrigerant flow in adiabatic capillary tube in the 120 K temperature range for Joule-Thomson cryocoolers.
  • Record ID : 2006-2157
  • Languages: English
  • Source: Cryogenics and refrigeration. Proceedings of ICCR 2003.
  • Publication date: 2003/04/22

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