Partager

Document IIF

Caractéristiques de transfert de chaleur des échangeurs de chaleur spiralés avec tubes ailetés circulaires fonctionnant sous des conditions de givrage.

Heat transfer characteristics of spirally-coiled circular fin-tube heat exchangers operating under frosting conditions.

Auteurs : LEE M., KANG T., JOO Y., et al.

Type d'article : Article, Article de la RIF

Résumé

The objective of this study is to investigate the heat transfer characteristics of spirally-coiled circular fin-tube heat exchangers under frosting conditions. The heat transfer rate, pressure drop, frost thickness, and Nusselt number of the heat exchanger were measured and analyzed by varying the fin pitch and number of tube rows under frosting conditions. In addition, the Nusselt number of the spirally-coiled circular fin-tube exchanger was compared with those of flat plate fin-tube heat exchangers with discrete fins. An empirical correlation of the Nusselt number was developed as a function of the Reynolds number, dimensionless fin pitch normalized by the hydraulic diameter, i.e., Dh/Fp, Fourier number, and number of tube rows. The measured Nusselt number was consistent with the predicted value with mean and average deviations of 3.5 and 0.3%, respectively.

Documents disponibles

Format PDF

Pages : pp. 328-336

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Heat transfer characteristics of spirally-coiled circular fin-tube heat exchangers operating under frosting conditions.
  • Identifiant de la fiche : 2010-1486
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 1
  • Date d'édition : 01/2011

Liens


Voir d'autres articles du même numéro (36)
Voir la source

Indexation