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Ecoulement des coulis de glace à l'intérieur de tubes : transfert de chaleur.

Heat transfer of ice slurry flows in tubes.

Auteurs : NIEZGODA-ZELASKO B.

Type d'article : Article, Article de la RIF

Résumé

This paper presents the results of studies on heat transfer in ice slurry flows through horizontal tubes. On the basis of the energy equation and experimental results, the authors developed their own dimensionless relationships to determine local values of heat transfer coefficients for turbulent and laminar flows. Appropriate parameters were introduced to these expressions, in order to account for the effects of the following: the rheological properties of ice slurry, phase change, and the multiphase flow character. The second part of this paper discusses the possibility of modelling heat transfer in ice slurry tube flows using the CFD (fluent) methods. Correct description of heat transfer in ice slurry flows in tubes was made possible by assuming a single-phase model for Bingham fluid, and the enthalpy-porosity method for the analysis of melting, as well as by taking into account variations of the heat conductivity in a moving suspension.

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Format PDF

Pages : 437-450

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Détails

  • Titre original : Heat transfer of ice slurry flows in tubes.
  • Identifiant de la fiche : 2006-1246
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 3
  • Date d'édition : 05/2006

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