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Air side performance of thermosyphon heat exchanger in low Reynolds number region: with and without electric field

机译:低雷诺数区域的热虹吸热交换器的空气侧性能:有电场和无电场

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摘要

this study concerns the air side performance of a thermosyphon heat exchanger with and without the presence of electrohydrodynamic (EHD) in the low Reynolds number region. For test results without EHD, the predictive ability of the well-known Zhkauskas correlation significantly underestimates the present results. With the introduction of EHD, there is an insignificant increase of heat transfer coefficient when the supplied voltage is <15.5 kV. In the meantime, for a supplied voltage of 17.5 kV, the heat transfer coef- ficients can be improved by 15/100 at a Reynolds number of 58.
机译:这项研究涉及在低雷诺数区域内有或没有电液动力学(EHD)的情况下,热虹吸热交换器的空气侧性能。对于没有EHD的测试结果,众所周知的Zhkauskas相关性的预测能力大大低估了当前结果。随着EHD的引入,当供电电压<15.5 kV时,传热系数几乎没有增加。同时,对于17.5 kV的供电电压,雷诺数为58时,传热系数可以提高15/100。

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