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Solubilité, densité et viscosité d'un mélange de R-600a et d'huile polyolester.

Solubility, density and viscosity of a mixture of R-600a and polyol ester oil.

Auteurs : MARCELINO NETO M. A., BARBOSA J. R.

Type d'article : Article, Article de la RIF

Résumé

Experimental data on solubility, liquid phase density and viscosity of a mixture of R-600a and a POE ISO 7 lubricant oil are presented. A specially designed experimental facility for simultaneous measurements of the physical properties was used in the experiments at temperatures ranging from 10 to 60°C. The VLE data were correlated with the Heil-Prausnitz and Flory-Huggins activity models and the Peng-Robinson equation of state (EoS). Liquid density was correlated with the Peng-Robinson EoS and with a first-order Redlich-Kister expansion for the excess molar volume. Liquid viscosity was correlated with an excess-property approach based on the classical Eyring liquid viscosity model. Satisfactory agreement was obtained between models and experiments; maximum root mean square deviations of models used in the VLE, density and viscosity predictions were 1.1% (VLE EoS), 0.2% (Redlich-Kister) and 3.0% (Grunberg-Nissan), respectively.

Documents disponibles

Format PDF

Pages : 34-44

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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

Détails

  • Titre original : Solubility, density and viscosity of a mixture of R-600a and polyol ester oil.
  • Identifiant de la fiche : 2008-0513
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 1
  • Date d'édition : 01/2008

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