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Corrélation pour le transfert de chaleur lors de l'ébullition de R-134a dans des tubes horizontaux, tenant compte de l'effet du diamètre du tube.

Correlation for boiling heat transfer of R-134a in horizontal tubes including effect of tube diameter.

Auteurs : SAITOH S., DAIGUJI H., HIHARA E.

Type d'article : Article

Résumé

A Chen-type correlation for flow boiling heat transfer of R-134a in horizontal tubes was modified taking into account the effect of tube diameter. The effect of tube diameter on flow boiling heat transfer coefficient was characterized by the Weber number in gas phase. Results showed that this correlation could be applied to a wide range of tube diameters (0.5-11-mm-ID). In addition, the dryout point and the heat transfer characteristics after the dryout point were also investigated based on the annular flow model. The proposed experimental expressions to predict both the dryout quality and the post-dryout heat transfer coefficient could also be applied to a wide range of tube diameter (0.5-11-mm-ID). [Reprinted with permission from Elsevier. Copyright, 2007].

Détails

  • Titre original : Correlation for boiling heat transfer of R-134a in horizontal tubes including effect of tube diameter.
  • Identifiant de la fiche : 2008-1247
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 50 - n. 25-26
  • Date d'édition : 12/2007

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