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Étude du phénomène de givrage entre plaques avec concavité et convexité en convection forcée: analyse du développement de la couche de givre.

Study on the frosting phenomena between concavity and convexity plate under forced convection: analysis of frost layer growth.

Numéro : pap. n. 462

Auteurs : KANEKO A., TAKANO Y., MIYAHARA R., et al.

Résumé

In recent years, electric vehicles have been actively developed, and to use heat-pump system is meaningful for air conditioning system for electric vehicle. But frost formation of external heat exchanger becomes a problem under the heating cycle. To improve of heat exchange performance and to inhibit frost formation for heat pump system, fin-less heat exchanger is proposed. In this study, we investigated basic characteristic of frost formation of the flow path between flat plate with concavity and convexity under forced convection. Test section is a flow path that is placed opposite to a flat plate having a periodic concavity and convexity groove on the surface. Experiment was conducted using structure of concavity and convexity as a parameter. By visualizing the frost formation, the relationship of time to passage blockage and structure of concavity and convexity became clear. And it is possible to optimize of concavity and convexity.

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Format PDF

Pages : 8 p.

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  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Study on the frosting phenomena between concavity and convexity plate under forced convection: analysis of frost layer growth.
  • Identifiant de la fiche : 30015893
  • 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.2015.0462

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