Condensation d'un film de R134a et un mélange de R23 et de R134a sur les tubes horizontaux à ailettes. Influence de l'espacement des ailettes.

Filmwise condensation of R134a and R23/R134a mixture on horizontal finned tubes. Influence of fin spacing.

Résumé

The condensation of a pure fluid (R134a) and of a zeotropic mixture (R134a/R23) outside a horizontal bundle of finned tubes have been studied to understand the behaviour of the new refrigerants. Experimental results with pure R134a and several compositions of mixture R134a/R23 have been obtained during condensation on a bundle equipped with finned tubes of three different types: K26 (1024-fpm), K19 (748-fpm), K11 (433-fpm). The experimental data show the important effect of fin spacing and the reduced impact of inundation effect on thermal performance.

Détails

  • Titre original : Filmwise condensation of R134a and R23/R134a mixture on horizontal finned tubes. Influence of fin spacing.
  • Identifiant de la fiche : 2000-0118
  • Langues : Anglais
  • Source : Heat transfer in condensation and evaporation: application to industrial and environmental processes. Preprints of the EUROTHERM Seminar 62.
  • Date d'édition : 17/11/1998
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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