Partager

Document IIF

Règles de mélange des viscosités des mélanges de frigorigènes liquides.

Mixing rule for liquid viscosities of refrigerant mixtures.

Auteurs : JUNG D. S., DIDION D.

Type d'article : Article, Article de la RIF

Résumé

An investigation of mixing rules for liquid viscosities of refrigerant mixtures is reported. Measured liquid viscosities of seven azeotropes and their corresponding pure components are compared with available mixing rules and Hildebrand's correlation. The results indicate that the viscosities of pure refrigerants are a strong function of volume, supporting Hildebrand's theory. The mixing rules popular in the refrigeration industry are not universally valid for all the mixtures considered. The volume change due to mixing is responsible for almost all of the deviations of the liquid viscosities of mixtures from ideal values. A simple relationship between excess viscosity and excess volume is developed, which results in deviations of less than 2% when used with Grunberg and Nissan's correlation. Based on this study, it is recommended that density measurements are accompanied by viscosity measurements for refrigerant mixtures.

Documents disponibles

Format PDF

Pages : 243-247

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 : Mixing rule for liquid viscosities of refrigerant mixtures.
  • Identifiant de la fiche : 30001733
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 13 - n. 4
  • Date d'édition : 07/1990

Liens


Voir d'autres articles du même numéro (8)
Voir la source

Indexation