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Modélisation pour la prévision du comportement en givrage sur un échangeur de chaleur à tubes ailetés.

Modelling for predicting frosting behaviour of a fin-tube heat exchanger.

Auteurs : YANG D. K., LEE K. S., SONG S.

Type d'article : Article

Résumé

A mathematical model is proposed to evaluate the frosting behaviour of a fin-tube heat exchanger under frosting conditions. Empirical correlations of the heat transfer coefficients for the plate and tube surfaces and a diffusion equation for the frost layer are used to establish the model. The correlations for the heat transfer coefficients, derived from various experimental data, were obtained as functions of the Reynolds number and Prandtl number. The proposed model is validated by comparing the numerical results with experimental data for the frost thickness, frost accumulation, and heat transfer rate. The numerical results agree well with the experimental data. It is also found that this model can be applied to evaluate the thermal performance of a common fin-tube heat exchanger under frosting conditions. [Reprinted with permission from Elsevier. Copyright, 2005].

Détails

  • Titre original : Modelling for predicting frosting behaviour of a fin-tube heat exchanger.
  • Identifiant de la fiche : 2007-0680
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 49 - n. 7-8
  • Date d'édition : 04/2006

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