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Document IIF

Etude expérimentale sur la rétention d'huile dans les systèmes de conditionnement d'air.

Experimental investigation of oil retention in air conditioning systems.

Auteurs : CREMASCHI L., HWANG Y., RADERMACHER R.

Type d'article : Article, Article de la RIF

Résumé

In air conditioning and refrigeration systems a small amount of oil is carried with the refrigerant and is retained in the system components. Oil retention characteristics in the condenser, evaporator, liquid and suction lines were measured and are presented and discussed. Refrigerants R22, R410A, and R134a with miscible and non-miscible lubricants were considered to investigate oil retention physics in the widest possible range of transport properties. A parametric analysis in the suction line showed that oil retention depends on the oil mass fraction, vapour refrigerant mass flux, mixture viscosity ratio and orientation of the pipe. In the suction line, an increase in mixture viscosity of about 55% caused a rise in oil retention in the range of 50%, depending on the oil mass fraction. Oil retention in the upward vertical suction line is about 50% higher than in the horizontal line at similar conditions.

Documents disponibles

Format PDF

Pages : 1018-1028

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 : Experimental investigation of oil retention in air conditioning systems.
  • Identifiant de la fiche : 2005-2445
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 7
  • Date d'édition : 11/2005

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