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Étude sur les modèles d'écoulement par évaporation et les transferts de chaleur du R22 et du R134a dans des tubes à faible diamètre.

Study on the evaporating flow patterns and heat transfers of R22 and R134a in small diameter tubes.

Auteurs : OH H. K., PARK K. W., SON C. H., et al.

Type d'article : Article

Résumé

Large diameter tubes have been used until comparatively lately. However, small diameter tubes are largely used these days because of their high efficiency in heat transfer and low cost. The study focuses on the experimental research of the flow patterns and heat transfer coefficients during the evaporating process of R22 and R134a in small diameter tubes. The evaporating flow patterns of R22 and R134a were observed in pyrex sight glass tubes with ID 2 and 8 mm, respectively, and heat transfer coefficients were measured in smooth horizontal copper tubes with ID 1.77, 3.36 and 5.35 mm.

Détails

  • Titre original : Study on the evaporating flow patterns and heat transfers of R22 and R134a in small diameter tubes.
  • Identifiant de la fiche : 2004-2732
  • Langues : Anglais
  • Source : Vestnik Mezdunarodarnoj Akademii Holoda - n. 2
  • Date d'édition : 2003
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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