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Étude expérimentale et théorique sur le transfert de chaleur lors de la condensation d'un mélange de frigorigènes non azéotropiques de R1234yf et de R32 à l'intérieur d'un tube horizontal lisse.

Experimental and theoretical study on condensation heat transfer of non azeotropic refrigerant mixture R1234yf/R32 inside a horizontal smooth tube.

Numéro : pap. 2472

Auteurs : WANG L., DANG C., HIHARA E.

Résumé

The condensation heat transfer characteristics of nonazeotropic mixtures R1234yf and R32 (mass fractions of 0.52:0.48 and 0.77:0.23, respectively) inside a horizontal smooth tube (inner diameter 4 mm) were experimentally studied at mass fluxes ranging from 100 to 300 kg/m2 s. A prediction model for the forced convective condensation heat transfer characteristics of nonazeotropic refrigerant mixtures was also constructed based on the measured results, and the details are presented. The heat transfer characteristics, especially the heat transfer deterioration of the nonazeotropic refrigerant mixture, are evaluated by combining the correlations of heat transfer and mass transfer at both the vapor side and liquid side. By comparison with experimental data, prediction results obtained using the proposed model were found to agree reasonably with the experimental condensation heat transfer coefficient of binary refrigerant mixtures using R1234yf and R32.

Documents disponibles

Format PDF

Pages : 8 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Experimental and theoretical study on condensation heat transfer of non azeotropic refrigerant mixture R1234yf/R32 inside a horizontal smooth tube.
  • Identifiant de la fiche : 30006195
  • Langues : Anglais
  • Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 16/07/2012

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