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

Akira Kaneko, Yusuke Takano, Ryo Miyahara, Kenrou Morita, Masafumi Katsuta

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    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.

    Original languageEnglish
    Title of host publication24th IIR International Congress of Refrigeration, ICR 2015
    PublisherInternational Institute of Refrigeration
    Pages1005-1012
    Number of pages8
    ISBN (Electronic)9782362150128
    DOIs
    Publication statusPublished - 2015
    Event24th IIR International Congress of Refrigeration, ICR 2015 - Yokohama, Japan
    Duration: 2015 Aug 162015 Aug 22

    Other

    Other24th IIR International Congress of Refrigeration, ICR 2015
    CountryJapan
    CityYokohama
    Period15/8/1615/8/22

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Electrical and Electronic Engineering
    • Mechanical Engineering
    • Condensed Matter Physics

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  • Cite this

    Kaneko, A., Takano, Y., Miyahara, R., Morita, K., & Katsuta, M. (2015). Study on the frosting phenomena between concavity and convexity plate under forced convection-analysis of frost layer growth. In 24th IIR International Congress of Refrigeration, ICR 2015 (pp. 1005-1012). International Institute of Refrigeration. https://doi.org/10.18462/iir.icr.2015.0462