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Document IIF

Influence d'une huile à faible viscosité sur le transfert de chaleur lors de l'ébullition libre du frigorigène R507.

The influence of a low viscosity oil on the pool boiling heat transfer of the refrigerant R507.

Auteurs : MOHRLOK K., SPINDLER K., HAHNE E.

Type d'article : Article, Article de la RIF

Résumé

The paper describes the influence of a low viscosity polyolester based lubricating oil on the pool boiling heat transfer of the R507. The pool boiling heat transfer coefficients for this refrigerant-oil mixture are measured on a smooth tube and on an enhanced tube. The investigation is made for oil mass fractions up to 10% for both and for saturation temperatures between -28.6 and 20.1 °C. For the smooth tube the heat transfer increases for increasing oil mass fractions up to 3% at lower saturation temperatures. At higher saturation temperatures the heat transfer decreases for increasing oil mass fractions tubes. For oil mass fractions greater than 1% at the higher saturation temperatures a range of decreasing heat transfer coefficient is found for increasing heat flux. The effect is caused by the different miscibility of the oil and the components of the refrigerant mixture.

Documents disponibles

Format PDF

Pages : 25-40

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : The influence of a low viscosity oil on the pool boiling heat transfer of the refrigerant R507.
  • Identifiant de la fiche : 2001-1749
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 24 - n. 1
  • Date d'édition : 01/2001

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