双加热器低温热管热性能的数值与实验研究

Jong Heung Park, Seong Pal Lee
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引用次数: 0

摘要

为了优化两台加热器的热分布,对双热源热管的运行进行了研究。采用数值模拟方法,在假设蒸汽为圆柱形二维层流,壁面和芯部为传导传热的情况下,对热管的温度分布进行了预测。利用长度为0.45 m的铜-水热管对所建立的数值模型进行了验证。给出了外壁温度分布和总热输入29W ~ 94W范围内的温度分布对比。同时给出了热输入与温度升高之间的关系,以便在两个加热器上进行最佳分配。结果表明,通过重新分配热源可以控制外壁温度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Numerical and Experimental Study on Thermal Performance of Low Temperature Heat Pipe With Two Heaters
A study on the operation of a heat pipe with two heat sources has been performed to optimize the heat distribution of two heaters. A numerical modeling is used to predict the temperature profiles for the heat pipe assuming cylindrical two dimensional laminar flow for the vapor, and the conduction heat transfer for the wall and wick. An experimental study using the copper-water heat pipe with a length of 0.45 m has been performed to evaluate the numerical model developed. Temperature profiles at the outer wall and the comparison of temperature distribution for the total heat input range from 29W to 94W are presented. Also the correlation between the heat input and the temperature increase is presented for the optimum distribution on two heaters. The result shows that the outer wall temperature can be controlled by redistribution of heat sources.
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