Partager

Document IIF

Effets de l'huile synthétique dans un système frigorifique à compression fonctionnant au R410A. Partie II : qualité des échanges de chaleur et pertes de charge dans les échangeurs.

Effects of synthetic oil in a compression refrigeration system using R410A. Part II: quality of heat transfer and pressure losses within the heat exchangers.

Auteurs : LOTTIN O., GUILLEMET P., LEBRETON J. M.

Type d'article : Article, Article de la RIF

Résumé

The consequences of the presence of oil rejected by the compressor of a vapour-compression refrigeration system on the operation of the evaporator and condenser are analysed. The modelled prototype uses a mixture of HFC R410A and a synthetic polyolester (POE) oil. The rise in the amount of lubricant circulating in the system leads to a progressive change in the behaviour of the mixture of refrigerant and oil that, for the higher oil mass fraction, evolves like a zeotropic mixture. It was also seen that the presence of lubricant is generally associated with a fall in the performances of the heat exchangers, except in the evaporator, where an optimum is observed when the quantity of oil is equal to 0.1% of the total mass of the mixture. Some conclusions are drawn regarding the choice of correlations for the calculation of the refrigerant side heat transfer coefficient in a plate evaporator.

Documents disponibles

Format PDF

Pages : 783-794

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 : Effects of synthetic oil in a compression refrigeration system using R410A. Part II: quality of heat transfer and pressure losses within the heat exchangers.
  • Identifiant de la fiche : 2004-1676
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 26 - n. 7
  • Date d'édition : 11/2003

Liens


Voir d'autres articles du même numéro (12)
Voir la source

Indexation