Partager

Étude expérimentale du transfert de chaleur par condensation de R134a sur des mousses métalliques imprégnées d’huile.

Experimental study of condensation heat transfer of R134a on oil-infused metal foams.

Numéro : pap. 2274

Auteurs : JIN H., SHEN Y., NI W., et al.

Résumé

The condensation process of refrigerants has crucial influence on the efficiency of heating, ventilation, air conditioning and refrigerating systems. Recent research has shown that the use of nanostructured surface with lubricant infusion can enhance condensation heat transfer for low surface tension liquids, which have similar properties with refrigerants. R134, as a highly applied refrigerant, was employed to conduct condensation experiments at a saturation state within a pressure chamber. We also introduced lubricant-infused metal foam surfaces to explore their performance in heat transfer enhancement. A vertical plate surface was cooled by circulate chiller and exposed to the saturated vapor, while the heat flux as well as heat transfer coefficient were calculated based on the one dimensional heat conduction model. The boundary conditions were well controlled, and the repeatability of the condensation experiment were validated through parallel tests. The preliminary results showed that compared to the pure copper surface, the heat transfer coefficient is increased by 102% and 53% using oil-infused nickel foam and copper foam.

Documents disponibles

Format PDF

Pages : 7

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Experimental study of condensation heat transfer of R134a on oil-infused metal foams.
  • Identifiant de la fiche : 30024476
  • Langues : Anglais
  • Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 09/07/2018

Liens


Voir d'autres communications du même compte rendu (252)
Voir le compte rendu de la conférence

Indexation