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

    研究成果: Conference contribution

    抄録

    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.

    本文言語English
    ホスト出版物のタイトル24th IIR International Congress of Refrigeration, ICR 2015
    出版社International Institute of Refrigeration
    ページ1005-1012
    ページ数8
    ISBN(電子版)9782362150128
    DOI
    出版ステータスPublished - 2015
    イベント24th IIR International Congress of Refrigeration, ICR 2015 - Yokohama, Japan
    継続期間: 2015 8 162015 8 22

    Other

    Other24th IIR International Congress of Refrigeration, ICR 2015
    国/地域Japan
    CityYokohama
    Period15/8/1615/8/22

    ASJC Scopus subject areas

    • 制御およびシステム工学
    • 電子工学および電気工学
    • 機械工学
    • 凝縮系物理学

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