Numerical analysis of a metal hydride reactor with embedded heat pipes to enhance heat transfer characteristics

Joon Hong Boo, Young Hark Park, Masafumi Katsuta, Sang Chul Bae

    研究成果: Conference contribution

    5 被引用数 (Scopus)

    抄録

    Numerical analysis was conducted for a heat pipe application in a metal hydride (MH) reactor for hydrogen gas storage. The hydriding and dehydriding characteristics of MH strongly depend on temperature and pressure. Due to its extremely low thermal conductivity however, it is very difficult to control the temperature of MH, especially when it is of vast bulk as in an MH reactor. This study deals with heat pipes embedded into the MH to increase the effective thermal conductivity of the system and thus to enhance the thermal control characteristics. The existing model was a brine-tube type MH reactor having cylindrical container with outer diameter of 76 mm and length of 1 m, which was partially filled with 8 to 10 kg of MH material. The hydriding and dehydriding processes occur at 10°C and 80°C, respectively. The heat-pipe type reactor model replaced the brine tubes and channels with copper-water heat pipes of the same dimensions. Three-dimensional numerical analysis predicted that the heat-pipe type MH reactor model enhanced thermal performance with faster response to the change of boundary conditions and higher degree of isothermal characteristics. Discussion is presented based on the numerical results of the two models compared with experimental results.

    本文言語English
    ホスト出版物のタイトルProceedings of the ASME Summer Heat Transfer Conference 2009, HT2009
    ページ409-416
    ページ数8
    3
    DOI
    出版ステータスPublished - 2009
    イベント2009 ASME Summer Heat Transfer Conference, HT2009 - San Francisco, CA
    継続期間: 2009 7月 192009 7月 23

    Other

    Other2009 ASME Summer Heat Transfer Conference, HT2009
    CitySan Francisco, CA
    Period09/7/1909/7/23

    ASJC Scopus subject areas

    • 流体および伝熱

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