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Document IIF

Mesures expérimentales du coefficient de transfert de chaleur lors de la condensation de R-22 dans les échangeurs de chaleur à plaque.

Experimental measurements of condensation heat transfer coefficient of R-22 in plate heat exchangers.

Auteurs : JEONG Y. M., SHIN G. W., SHIN H. S., et al.

Résumé

This study has been conducted on condensation heat transfer characteristics of the brazed plate heat exchanger using R-22 as a condenser. In this study of R-22 condensation heat transfer in the vertical plate heat exchangers, the experimental conditions are saturation pressure of 1.19-1.53 MPa, refrigerant mass flux of 35-65 kg/m2.s, heat flux of 2.67 kW/m2. The condensation heat transfer coefficients have been observed with the refrigerant vapour quality varied from 0.9 to 0.1. The condensation heat transfer coefficient apparently increases with increasing the vapour quality. The condensation heat transfer coefficient slightly increases with decreasing saturation pressures and with increasing refrigerant mass flux. An appropriately proposed correlation for R-22 has less error, plus or minus 15.5% in comparison with the experimental data.

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Format PDF

Pages : ICR07-B1-922

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    20 €

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Détails

  • Titre original : Experimental measurements of condensation heat transfer coefficient of R-22 in plate heat exchangers.
  • Identifiant de la fiche : 2008-0084
  • Langues : Anglais
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

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