Experimental Study of Geyser Boiling in High-temperature Sodium Heat Pipe at Inclined Angle Condition

Yang Siyuan; Ma Yugao; Wen Qinglong; Wen Shuang; Ding Shuhua; He Linfeng; Yuan Bo

doi:10.13832/j.jnpe.2024.060020

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Yang Siyuan, Ma Yugao, Wen Qinglong, Wen Shuang, Ding Shuhua, He Linfeng, Yuan Bo. Experimental Study of Geyser Boiling in High-temperature Sodium Heat Pipe at Inclined Angle Condition[J]. Nuclear Power Engineering. doi: 10.13832/j.jnpe.2024.060020

Citation:

Yang Siyuan, Ma Yugao, Wen Qinglong, Wen Shuang, Ding Shuhua, He Linfeng, Yuan Bo. Experimental Study of Geyser Boiling in High-temperature Sodium Heat Pipe at Inclined Angle Condition[J]. Nuclear Power Engineering. doi: 10.13832/j.jnpe.2024.060020

Citation:

Yang Siyuan, Ma Yugao, Wen Qinglong, Wen Shuang, Ding Shuhua, He Linfeng, Yuan Bo. Experimental Study of Geyser Boiling in High-temperature Sodium Heat Pipe at Inclined Angle Condition[J]. Nuclear Power Engineering. doi: 10.13832/j.jnpe.2024.060020

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Experimental Study of Geyser Boiling in High-temperature Sodium Heat Pipe at Inclined Angle Condition

doi: 10.13832/j.jnpe.2024.060020

Yang Siyuan^{1, 2
,},
Ma Yugao³,
Wen Qinglong^{1, 2, 4
,
,},
Wen Shuang³,
Ding Shuhua³,
He Linfeng⁵,
Yuan Bo^{1, 4}

1.
Department of Nuclear Engineering, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
2.
Liangjiang Laboratory for New Energy (Nuclear Energy and Power), Chongqing, 400044, China
3.
Nuclear Power Institute of China, Chengdu, 610213, ChinaLiangjiang Laboratory for New Energy (Nuclear Energy and Power), Chongqing, 400044, China
4.
Key Laboratory of Low-Grade Energy Utilization Technologies & Systems, MOE,Chongqing University, Chongqing, 400044, China
5.
China Institute of Atomic Energy, Beijing, 102413, China

Received Date: 2024-06-07
Rev Recd Date: 2024-08-07

Available Online: 2025-04-22

Abstract

Abstract

To study the geyser boiling phenomenon in the start-up process of high-temperature alkali metal heat pipe and provide reference operating conditions for the safe operation of the heat pipe reactor, sodium metal was used as the working medium to investigate the influence factors and mechanism of geyser boiling during the start-up process of the heat pipe. The results show that the heating power and inclination angle of the heat pipe have important effects on geyser boiling. Under the condition of 90° inclination angle, the heating power increases from 600 W to 750 W, the geyser boiling period varies from 736 s to 29 s, and the temperature amplitude ranges from 35℃ to 18℃. Geyser boiling is easy to occur under medium heating power conditions but will not happen when the inclination of the heat pipe is 0°. With the increase of inclination angle, the heating power of the start and stop of the geyser boiling decreases. When the inclination angle is 45°, 60°, 90° respectively, the geyser boiling starts at 250, 200, 150 W and stops at 600, 450, 350 W. The geyser boiling period varies at the same heating power from different inclination angles, but the temperature amplitude changes little. The geyser boiling intensity decreases and the power range of geyser boiling advances with the shortening of the condensing section. The results of this study laid a foundation for further research on the geyser boiling mechanism of alkali metal heat pipes, and provide important data and theoretical support for the design optimization of alkali metal heat pipes and the safe operation of heat pipe reactors.
- Alkali metal heat pipe,
- Geyser boiling,
- Experimental investigation,
- Mechanism analysis

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References(15)

References

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