STUDY ON HEAT TRANSFER PERFORMANCE OF HEAT PIPE RECEIVER BASED ON DIFFERENT HEATING MODES

被引：0
|
作者：
Zhang W. [1 ]
Duan L. [1 ]
Yuan D. [2 ]
Zhang Z. [1 ]
Ba X. [1 ]
Tian R. [1 ,3 ]
机构：
[1] College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot
[2] Inner Mongolia Electric Power Research Institute Branch, Inner Monglia Electric Power（Group）Co.，Ltd., Hohhot
[3] Key Laboratory of Renewable Energy, Inner Mongolia Autonomous Region, Hohhot
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 04期
关键词：
heat pipes; heat transfer coefficients; heat transfer resistance; non-uniform heating; solar collector; thermal efficiency;
D O I：
10.19912/j.0254-0096.tynxb.2021-1422
中图分类号：
学科分类号：
摘要：
In order to study the influence of different heating modes on heat pipe heat transfer performance, this paper designed and built a set of two-phase closed thermosyphon（TPCT）heat pipe heat transfer performance experimental test bench with non-uniform heating function. The experiment tested the influence of the heating method（Uniform heating，Upper surface heating, Lower surface heating），heating power and placement angle on TPCT heat pipe heat transfer performance. The experimental results show that under certain conditions of heating power and placement angle，TPCT heat pipe has the largest thermal efficiency when uniformly heated，followed by lower surface heating. TPCT heat pipe has the lowest thermal efficiency when the upper surface is heated. Compared with other heating modes，when the lower surface is heated, the total heat transfer resistance of the heat pipe is the smallest，the heat transfer coefficient of the evaporation section is the largest, and the average temperature of the outer wall is the lowest. When the upper surface is heated and uniformly heated, there is little difference in the temperature of the outer wall. No matter which heating method is used，with the increase of placement angle，the thermal efficiency of heat pipe decreases gradually, the total heat transfer resistance increases gradually, and the heat transfer coefficient of evaporator decreases gradually. The outer wall temperature of the liquid pool area in the evaporator is significantly higher than that in the liquid film area. In the liquid film area，the temperature of the outer wall surface changes little along the height direction. © 2023 Science Press. All rights reserved.
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页码：492 / 498
页数：6
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