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Etude du transfert de chaleur du HFC-134a avec des tubes à surface augmentée dans des évaporateurs noyés, selon différentes surfaces.

The study on the heat transfer of HFC-134a for the enhanced tubes used in the flooded evaporator with various enhanced surfaces.

Auteurs : YANG S. W., KANG Y. T., LEE Y. S., et al.

Résumé

The objectives of the paper are to study the heat transfer characteristics for enhanced surface tubes in the pool boiling and to provide a guideline for the optimum design conditions for the evaporator using HFC-134a. The shape of tube surfaces and the saturation temperature are considered as the key parameters. Copper tubes are treated with different helix angles and the saturation temperatures are controlled. The overall heat transfer coefficient is measured to investigate the heat transfer characteristic for each condition.

Détails

  • Titre original : The study on the heat transfer of HFC-134a for the enhanced tubes used in the flooded evaporator with various enhanced surfaces.
  • Identifiant de la fiche : 2007-1031
  • Langues : Anglais
  • Source : ACRA-2006. Proceedings of the 3rd Asian conference on refrigeration and air conditioning.
  • Date d'édition : 21/05/2006

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