Complete heat transfer solutions of an insulated regular cubic tank with an SSWT model
Complete heat transfer solutions of an insulated regular cubic tank with an SSWT model
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DOI：
10.1016/j.enconman.2004.01.007
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发表时间：
2004-11
影响因子：
10.4
通讯作者：
King-Leung Wong;H. Chou;Bing-Shyan Her;Huang-Ching Yeh
中科院分区：
文献类型：
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作者：
King-Leung Wong;H. Chou;Bing-Shyan Her;Huang-Ching Yeh
本文采用与Chou和Wong以前相同的SSWT模型分析了立方隔热水箱的换热特性。对流换热系数中的内对流项和壁面导热项的热阻在本研究中是不能忽略的。这样就得到了完整的热传递解。本文的结果可以更广泛地应用于实际情况，如隔热气罐。临界厚度Tcr和中性厚度Te的结果与J值无关(由内对流项和壁传导项的影响产生)。研究表明，在低到中等内对流系数hi和/或低到中等壁面导热系数K的情况下，传热方程中不能忽略内对流项和壁面导热项的热阻，特别是在体积较小的情况下。
The heat transfer characteristics for an insulated cubic tank are analyzed by using the same SSWT model in the present study as that used by Chou and Wong previously. The thermal resistance of the inner convection term and the wall conduction term in the heat transfer rate are not neglected in the present study. Thus, the complete heat transfer solution will be obtained. The present results can be applied more extensively to practical situations, such as an insulated gas tank. The results of the critical thickness tcrand the neutral thickness teare independent of the values of J (generated by the effect of the inner convection term and the wall conduction term). However, the heat transfer rates are dependent on the values of J. The present study shows that the thermal resistance of the inner convection term and the wall conduction term cannot be neglected in heat transfer equations in situations of low to medium inner convection coefficients, hi, and/or low to medium wall conductivities, K, especially in situations with small body sizes.