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Mesurage de la viscosité et corrélation des solutions saturées de R-290 avec trois lubrifiants.

Viscosity measurement and correlation of saturated solutions of R-290 with three lubricants.

Auteurs : SUN Y., WANG X., WANG S., MENG X.

Type d'article : Article de la RIF

Résumé

As a natural refrigerant, propane (R-290) with a similar cooling capacity of R-22 is being increasingly widely attention in refrigeration and air conditioning (RAC). In the refrigeration cycle, the working fluid is actually a mixture of refrigerant/oil. To gain insight into the performance of vapor-compression refrigeration using R-290 as a refrigerant, the thermophysical properties of R-290/oil mixtures should be well known, especially the viscosity behavior. A self-designed double-capillary apparatus was applied to measure the viscosities of saturated solution for R-290 with three synthetic oils (PAG 68, POE 75 and PVE 68) from 303.15 to 348.15 K. The results show that the viscosities of three blends have the similar trend as rising solubility. The absorbed R-290 has a great impact on the oil viscosity in the low temperature region. Viscosities of R-290/oil mixtures could be well represented by the Eyring-MTSM model.

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Format PDF

Pages : 1-6

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 : Viscosity measurement and correlation of saturated solutions of R-290 with three lubricants.
  • Identifiant de la fiche : 30031986
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 155
  • Date d'édition : 11/2023
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2023.09.009

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