Kun Shan University Institutional Repository:Item 987654321/9757
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    题名: Reliable one-dimensional approximate solutions for insulated oblate spheroid containers
    作者: 謝聰烈
    Tsung-Lieh Hsien;King-Leung Wong;Wen-Li Chen;Chao-chuan Siao
    贡献者: 電機工程系
    关键词: Insulation
    Oblate spheroid
    RPSWT model
    Integral method
    日期: 2009-12-21
    上传时间: 2010-04-21 16:03:08 (UTC+8)
    摘要: Since there is no reliable surface-area formula available for the calculation of the heat-transfer characteristics
    of an insulated oblate spheroid, in this investigation, highly accurate oblate spheroid surface area is
    obtained by a simple numerical integration method. Based on the accurate oblate spheroid surface area, a
    reliable one-dimensional approximate solution of an insulated oblate spheroid container can be obtained
    with a one-dimensional RPSWT model. By comparing with accurate three-dimensional numerical results,
    it is found that in cases of low external convective coefficient (ho = 8.3Wm2 K1), long–short-axes ratio
    a=b53, and insulation thickness t=R252, errors are within 3%. In rarer situations with a=b55 and t=R252,
    the errors are within 5.5%. The above results are almost independent with the internal flow convective
    coefficient (hi from 30 to 105Wm2 K1) and dimensionless container size (0.5R2ho/Ks from 1.55 to 155).
    關聯: Energy Conversion and Management 50 (2009) 1871–1878
    显示于类别:[電機工程系所] 期刊論文


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