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Etude expérimentale du transfert de chaleur lors de la condensation à l'intérieur d'un minicanal circulaire unique.

Experimental study on condensation heat transfer inside a single circular minichannel.

Auteurs : MATKOVIC M., CAVALLINI A., DEL COL D., et al.

Type d'article : Article

Résumé

The measurement of the condensation heat transfer coefficient inside micro- and minichannels is still somewhat elusive due to the difficult task of getting accurate values of the heat transfer coefficients during the condensation process, particularly when studied within single minichannels. The present paper reports local heat transfer coefficients obtained from the measurement of the local heat flux and the direct measurement of the saturation and wall temperatures during condensation of R134a and R32 within a single circular 0.96 mm diameter minichannel. Except for the lowest mass velocity, the test results do not show significant discrepancy from the trends expected for macroscale tubes. [Reprinted with permission from Elsevier. Copyright, 2008].

Détails

  • Titre original : Experimental study on condensation heat transfer inside a single circular minichannel.
  • Identifiant de la fiche : 2009-1975
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 52 - n. 9-10
  • Date d'édition : 04/2009
  • DOI : http://dx.doi.org/10.1016/j.ijheatmasstransfer.2008.11.013

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