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L'équation d'état Peng-Robinson modifiée pour des frigorigènes purs et mélangés avec du R32, R125 et R134a.

Modified Peng-Robinson equation of state for pure and mixture refrigerants with R32, R125 and R134a.

Auteurs : LI J., SATO H., WATANABE K.

Type d'article : Article

Résumé

On the basis of critically-evaluated thermoproperty data among those recently published, a new Peng-Robinson equation of state for the HFC refrigerants, R32, R125 and R134a, has been developed so as to represent the VLE properties in the vapor-liquid coexisting phase at temperatures 223-323 K. In accord with a challenge to correlate the binary and/or ternary interaction parameters as functions of temperature, we have also applied the present modified Peng-Robinson equation of state to the promising alternative HFC refrigerant mixtures, i.e., R32/125, R32/134a and R32/125/134a systems. The developed equation of state improves significantly its effectiveness for practical engineering property calculations at refrigeration and air-conditioning industries in comparison with conventional Peng-Robinson equation.

Détails

  • Titre original : Modified Peng-Robinson equation of state for pure and mixture refrigerants with R32, R125 and R134a.
  • Identifiant de la fiche : 2000-0045
  • Langues : Anglais
  • Source : Trans. JAR - vol. 13 - n. 3
  • Date d'édition : 1996
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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