Unilateral Convective Heat Transfer Coefficient in Molten Salt Receiver Tube With Circumferentially Non-uniform Heat Flux

被引：0
|
作者：
Shen X. [1 ]
Ding J. [2 ]
Lu J. [2 ]
机构：
[1] College of Mechannical & Electrical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, Guangdong Province
[2] School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2020年 / 40卷 / 15期
基金：
中国国家自然科学基金;
关键词：
Circumferentially non-uniform heat flux; Molten salt; Numerical simulation; Receiver tube; Unilateral convective heat transfer coefficient;
D O I：
10.13334/j.0258-8013.pcsee.191308
中图分类号：
学科分类号：
摘要：
The unilateral convective heat transfer coefficient was affected by circumferentially non-uniform heat flux on the outer wall of solar receiver tube. Base on this, convection heat transfer experimental system and mathematical model of molten salt receiver were established to analyze the influence law of unilateral convective heat transfer coefficient in receiver tube. The results showed that the average convective heat transfer coefficient almost same with different heat flux ratio, and convective heat transfer coefficient with lower heat flux side was larger than that with higher heat flux side, but that with higher heat flux side was slightly smaller than average convective heat transfer coefficient. The convective heat transfer coefficient with higher heat flux side was close to each other, and the difference of that on two sides increased with Reynolds number and heat flux ratio(qh/ql) increased. The special calculation method of unilateral convective heat transfer coefficient was proposed, according to this method, the unilateral convective heat transfer coefficient fits well with the average convective heat transfer coefficient, and the maximum deviation is less than 4%. © 2020 Chin. Soc. for Elec. Eng.
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收藏
页码：4935 / 4944
页数：9
相关论文
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