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Représentation des propriétés thermodynamiques du système binaire R32-R125 par une nouvelle équation d'état du 3e degré.

Thermodynamic property representation for the R32-R125 binary system by a new cubic equation of state.

Auteurs : ZHANG H. L., SATO H., WATANABE K.

Type d'article : Article, Article de la RIF

Résumé

Thermodynamic properties of the R32-R125 binary system are modeled by a new cubic equation of state which was developed and applied to the pure R32 and R125 in a previous paper by the authors. The essential thermodynamic properties such as PVTx properties, vapour-liquid equilibrium, enthalpy entropy isobaric specific heat, and speed of sound are well represented by the new model simultaneous for the liquid phase, the gas phase, and the two-phase region of the R32-R125 binary system. The developed model is valid for the entire range of compositions, and a pressure-enthalpy diagram for a R32-R125 mixture with 50 mass% of R32 is illustrated as an example. The new model was also compared with other reported models in refrigeration cycle calculations.

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Pages : 441-451

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Détails

  • Titre original : Thermodynamic property representation for the R32-R125 binary system by a new cubic equation of state.
  • Identifiant de la fiche : 1998-1540
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 20 - n. 6
  • Date d'édition : 09/1997

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