Analysis of Heat Conduction Performance of Heat Pipe Based on Thermal Resistance Network Method

Cui Yinghuan; Xu Jianjun; Xie Tianzhou; Zhou Huihui

doi:10.13832/j.jnpe.2022.S2.0053

Volume 43 Issue S2

Dec. 2022

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Cui Yinghuan, Xu Jianjun, Xie Tianzhou, Zhou Huihui. Analysis of Heat Conduction Performance of Heat Pipe Based on Thermal Resistance Network Method[J]. Nuclear Power Engineering, 2022, 43(S2): 53-59. doi: 10.13832/j.jnpe.2022.S2.0053

Citation:

Cui Yinghuan, Xu Jianjun, Xie Tianzhou, Zhou Huihui. Analysis of Heat Conduction Performance of Heat Pipe Based on Thermal Resistance Network Method[J]. Nuclear Power Engineering, 2022, 43(S2): 53-59. doi: 10.13832/j.jnpe.2022.S2.0053

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Analysis of Heat Conduction Performance of Heat Pipe Based on Thermal Resistance Network Method

doi: 10.13832/j.jnpe.2022.S2.0053

CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2022-07-22
Rev Recd Date: 2022-10-25
Publish Date: 2022-12-31

Abstract

Abstract

In order to obtain the heat conduction characteristics such as heat pipe temperature and transmission power, a 2D heat pipe thermal resistance network model considering steam cavity heat transfer is established based on the thermal resistance equivalence theory, and the transient and steady-state heat transfer performance of the heat pipe are obtained. The literature and the experimental data of this paper are compared and verified. The maximum relative error of the average temperature in the adiabatic section is 7.6%. The results show that the model has a high accuracy for the experimental data of sodium working medium heat pipe in literature and hydraulic working medium heat pipe in this paper; The temperature uniformity of each axial section of the heat pipe is good, and the radial thermal resistance of the wick is the main factor affecting the thermal-conduction resistance of the heat pipe; The working temperature and transmission power of the heat pipe change with the cold source parameters in the opposite trend, and the heat transfer of the heat pipe is an adaptive dynamic regulation process. Therefore, the thermal resistance network model can be used as a tool for experimental analysis and heat pipe design. At the same time, it can further expand the research scope of working conditions, obtain the influence rules of boundary conditions on heat pipe heat transfer process, and further provide reference for heat pipe design in multiple application scenarios.
- Heat pipe,
- Thermal resistance network model,
- Heat conduction characteristics,
- Influence law of cold and heat source parameters

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References(17)

References

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