Design and Heat Transfer Performance Analysis of Ultra-High Temperature Lithium Heat Pipe

Hu Chongju; Yu Dali; He Meisheng; Li Taosheng; Yu Jie

doi:10.13832/j.jnpe.2022.03.0021

Volume 43 Issue 3

Jun. 2022

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Hu Chongju, Yu Dali, He Meisheng, Li Taosheng, Yu Jie. Design and Heat Transfer Performance Analysis of Ultra-High Temperature Lithium Heat Pipe[J]. Nuclear Power Engineering, 2022, 43(3): 21-27. doi: 10.13832/j.jnpe.2022.03.0021

Citation:

Hu Chongju, Yu Dali, He Meisheng, Li Taosheng, Yu Jie. Design and Heat Transfer Performance Analysis of Ultra-High Temperature Lithium Heat Pipe[J]. Nuclear Power Engineering, 2022, 43(3): 21-27. doi: 10.13832/j.jnpe.2022.03.0021

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Design and Heat Transfer Performance Analysis of Ultra-High Temperature Lithium Heat Pipe

doi: 10.13832/j.jnpe.2022.03.0021

Hu Chongju^{1, 2, 3
,},
Yu Dali^{1
,
,},
He Meisheng¹,
Li Taosheng¹,
Yu Jie¹

1.
Institute of Nuclear Energy Safety Technology, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
2.
University of Science and Technology of China, Hefei, 230026, China
3.
Suzhou University, Suzhou, Anhui, 234000, China

Received Date: 2021-04-27
Rev Recd Date: 2021-05-28
Publish Date: 2022-06-07

Abstract

Abstract

Ultra-high temperature lithium (Li) heat pipe cooled nuclear reactor has broad application prospects in the areas of deep-sea nuclear power and deep-space exploration due to its silence, small size and other advantages. In order to master the heat transfer characteristics of ultra-high temperature lithium heat pipe, the design of ultra-high temperature lithium heat pipe is carried out, and the Python program of ultra-high temperature lithium heat pipe is developed based on the thermal resistance grid method. On this basis, the heat transport performance of lithium heat pipe is analyzed. By comparing with other existing models and experimental data, the accuracy of the model developed in this paper is verified, and the ultra-high temperature lithium heat pipe designed in this paper is checked by using this program, and the influence of heat pipe structure on the transition time of ultra-high temperature lithium heat pipe to reach a new stable state under variable power condition is analyzed. The results show that the ultra-high temperature lithium heat pipe designed in this paper meets the design requirements; increasing the wall thickness and wick thickness increase the transition time; increasing the length of the condensation section is beneficial to reduce the transition time. The research in this paper provides the basis for the optimization design and safety analysis of the heat pipe reactor.
- Lithium heat pipe,
- Model development,
- Python,
- Transition time,
- Heat pipe reactor

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References(27)

References

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