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Document IIF

Effets des traitements en surface sur le comportement d'un échangeur de chaleur à tubes à ailettes lors de la formation de givre et du dégivrage.

Effect of surface treatments on the frosting/defrosting behavior of a fin-tube heat exchanger.

Auteurs : JHEE S., LEE K. S., KIM W. S.

Type d'article : Article, Article de la RIF

Résumé

The effects of the heat exchanger surface treatment on the frosting/defrosting behavior in a fin-tube heat exchanger are investigated experimentally. It is found that the hydrophilic surface mainly influences the frosting behavior, while the hydrophobic surface has some influence on the defrosting behavior. In view of the frosting, a surface-treated heat exchanger with either hydrophilic or hydrophobic characteristic shows little improvement in the thermal performance rather than the bare aluminum heat exchanger. The results reveal that the heat exchanger with a hydrophobic surface treatment is more effective in view of the defrosting efficiency and time. The amount of residual water on the surface-treated heat exchangers is shown to be smaller than that of the bare heat exchanger. Therefore further improvements on the performance of re-operations are expected.

Documents disponibles

Format PDF

Pages : 1047-1053

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Effect of surface treatments on the frosting/defrosting behavior of a fin-tube heat exchanger.
  • Identifiant de la fiche : 2003-1792
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 25 - n. 8
  • Date d'édition : 12/2002

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