Partager

Document IIF

Etude expérimentale sur les caractéristiques de transfert de chaleur local lors de la condensation du frigorigène R-410A à l'intérieur d'un tube extrudé à orifices multiples.

Experimental study on local heat transfer characteristics of refrigerant R-410A condensing in a multi-port extruded tube.

Auteurs : KOYAMA S., WU X., KUWAHARA K.

Résumé

In this study, the local heat transfer characteristics are investigated experimentally for the condensation of R-410A in a multi-port tube made of aluminium, which has 12 channels of 681.0 mm in length; 1.12 mm in hydraulic diameter. The tube-wall heat fluxes are measured in each subsection of 75 mm in effective cooling length; the wall temperatures are also measured at 8 positions of each side of test-tube. The refrigerant pressure drops in 8 subsections are calculated with the measured pressures at inlet and outlet of the tube. The experiments are carried out with a mass velocity of G = 100-300 kg/(m2s) and a constant inlet pressure of around 2.50 MPa. The experimental data of pressure drop are compared with the correlation of Koyama et al. (2002), and local heat transfer coefficients are also compared with some correlations.

Documents disponibles

Format PDF

Pages : ICR07-E1-1029

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 study on local heat transfer characteristics of refrigerant R-410A condensing in a multi-port extruded tube.
  • Identifiant de la fiche : 2008-0525
  • Langues : Anglais
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

Liens


Voir d'autres communications du même compte rendu (839)
Voir le compte rendu de la conférence

Indexation