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Document IIF

Analyse comparative de la performance d'un échangeur de chaleur à ailettes déportées comme évaporateur dans un système frigorifique au R22 et au R417A.

Comparative analysis of the performance of an offset-strip fin heat exchanger as evaporator in a refrigeration system with R22 and R417A.

Numéro : pap. n. 585

Auteurs : DIZ R., FERNÁNDEZ-SEARA J., PARDIÑAS A. A.

Résumé

Offset Strip Fins are often employed to build plate and fins heat exchangers used as condensers and evaporators in refrigeration systems, but the information available regarding them is not too extensive. Therefore, an experimental analysis of a refrigeration system which uses this kind of heat exchanger as evaporator was performed by using R417A and R22 as refrigerants. The heat transfer rate and the overall heat transfer coefficient in the heat exchanger were evaluated as a function of working conditions of the refrigeration system. Moreover, the heat transfer coefficient in the refrigerant side was obtained from the experimental overall heat transfer coefficient and the convection heat transfer coefficient in the secondary fluid side, which was previously determined in a set of tests performed by pumping water through both heat exchanger sides and applying a modification of the original Wilson plot technique.

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Format PDF

Pages : 8 p.

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 : Comparative analysis of the performance of an offset-strip fin heat exchanger as evaporator in a refrigeration system with R22 and R417A.
  • Identifiant de la fiche : 30015678
  • Langues : Anglais
  • Source : Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Date d'édition : 16/08/2015
  • DOI : http://dx.doi.org/10.18462/iir.icr.2015.0585

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