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Recherche expérimentale et simulation numérique de l'écoulement d'un mélange de frigorigènes sur un tube adiabiatique capillaire dans la gamme de températures de 120K pour des cryorefroidisseurs Joule-Thomson.

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

Auteurs : QI Y. F., GONG M. Q., CAO Y., et al.

Résumé

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.

Détails

  • Titre original : Experimental research and numerical simulation on mixed-refrigerant flow in adiabatic capillary tube in the 120 K temperature range for Joule-Thomson cryocoolers.
  • Identifiant de la fiche : 2006-2157
  • Langues : Anglais
  • Source : Cryogenics and refrigeration. Proceedings of ICCR 2003.
  • Date d'édition : 22/04/2003

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