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Effets prévus et mesurés de la non-uniformité de l'écoulement d'air sur la performance thermique d'un évaporateur au R134a.

Measured and predicted effects of air flow non-uniformity on thermal performance of an R134a evaporator.

Auteurs : RYAN A. M., TIMONEY D. J.

Résumé

Tests have been carried out over a wide range of operating conditions on a single circuit plate-finned tube type of refrigerant evaporator. Uniform and non-uniform air flow distributions were applied with the objective of studying the effects of non-uniformity on heat transfer. The experimental results revealed that heat transfer performances could be up to 15% better with non-uniform flow where turbulence levels were also high. Extensive comparisons were also made between these measurements and predictions from a computer model.

Détails

  • Titre original : Measured and predicted effects of air flow non-uniformity on thermal performance of an R134a evaporator.
  • Identifiant de la fiche : 2000-0983
  • Langues : Anglais
  • Source : New developments in heat exchangers for automotive design.
  • Date d'édition : 24/02/1997
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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