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Coefficients de transfert de chaleur lors de l'ébullition libre nucléée de HFC-134a, HC-290, HC-600a purs ainsi que de leurs mélanges binaires et ternaires.

Nucleate pool boiling heat transfer coefficients of pure HFC-134a, HC-290, HC-600a and their binary and ternary mixtures.

Auteurs : SUN Z., GONG M., LI Z., et al.

Type d'article : Article

Résumé

An experimental test rig for study on the pooling-boiling heat transfer performance of pure and mixed refrigerants were designed and established. With this test system, the heat transfer coefficients (HTCs) of the nucleate boiling on a smooth flat surface were measured for pure fluids of HFC-134a, HC-290, HC-600a and their binary and ternary mixtures. Extensive experimental measures were made for those pure and mixed refrigerants at different heat fluxes from 10 to 300 kW/m2 and different pressures from 0.2 to 0.6 MPa. Comprehensive measured data are presented in this paper. From experimental results, these binary mixtures and ternary mixtures show different heat transfer features according to their vapor-liquid phase equilibria behaviours. New heat transfer correlations were regressed from the measured data with average deviations within plus or minus 15% for pure refrigerants and within plus or minus 20% for mixtures. [Reprinted with permission from Elsevier. Copyright, 2006].

Détails

  • Titre original : Nucleate pool boiling heat transfer coefficients of pure HFC-134a, HC-290, HC-600a and their binary and ternary mixtures.
  • Identifiant de la fiche : 2007-0984
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 50 - n. 1-2
  • Date d'édition : 01/2007

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