Experimental Study on Start-up Characteristics of Arterial Sodium Heat Pipe with High Ratio of Length to Diameter

Xu Jun; Yu Hongxing; Deng Jian; Liu Yu; Zhang Muhao; Xia Xiaohui

doi:10.13832/j.jnpe.2024.10.0029

Volume 46 Issue 3

Jun. 2025

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Article Navigation > Nuclear Power Engineering > 2025 > 46(3): 18-23

Xu Jun, Yu Hongxing, Deng Jian, Liu Yu, Zhang Muhao, Xia Xiaohui. Experimental Study on Start-up Characteristics of Arterial Sodium Heat Pipe with High Ratio of Length to Diameter[J]. Nuclear Power Engineering, 2025, 46(3): 18-23. doi: 10.13832/j.jnpe.2024.10.0029

Citation:

Xu Jun, Yu Hongxing, Deng Jian, Liu Yu, Zhang Muhao, Xia Xiaohui. Experimental Study on Start-up Characteristics of Arterial Sodium Heat Pipe with High Ratio of Length to Diameter[J]. Nuclear Power Engineering, 2025, 46(3): 18-23. doi: 10.13832/j.jnpe.2024.10.0029

Citation:

Xu Jun, Yu Hongxing, Deng Jian, Liu Yu, Zhang Muhao, Xia Xiaohui. Experimental Study on Start-up Characteristics of Arterial Sodium Heat Pipe with High Ratio of Length to Diameter[J]. Nuclear Power Engineering, 2025, 46(3): 18-23. doi: 10.13832/j.jnpe.2024.10.0029

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Experimental Study on Start-up Characteristics of Arterial Sodium Heat Pipe with High Ratio of Length to Diameter

doi: 10.13832/j.jnpe.2024.10.0029

1.
National Key Laboratory of Nuclear Reactor Technology, Nuclear Power Institute of China, Chengdu, 610213, China
2.
College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, China

Received Date: 2024-09-18
Rev Recd Date: 2024-11-26

Available Online: 2025-06-09

Publish Date: 2025-06-09

Abstract

Abstract

To support the research and development of heat pipe reactors, this study designed and constructed a high-temperature compressed air cooling experimental platform to investigate the startup characteristics of high length-diameter arterial sodium heat pipes. The analysis results demonstrate the following: ① In the initial stage of the heat pipe startup process, high-temperature compressed air elevates the temperature of the condensation section, which facilitates the formation of a continuous flow of sodium vapor within the heat pipe, thereby accelerating the cold-state startup speed of the heat pipe; ② During the startup process, preheating of the condensation section enhances the temperature of the sodium vapor, effectively preventing the occurrence of sonic limit phenomenon, and consequently, increases the probability of successful heat pipe startup. The results in this paper provide data and theoretical support for the optimization of the cold start-up mode of the arterial sodium heat pipe with large length-diameter ratio.

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References(14)

References

[1]	余红星,马誉高,张卓华,等. 热管冷却反应堆的兴起和发展[J]. 核动力工程,2019, 40(4): 1-8.
[2]	MUELLER C, TSVETKOV P. A review of heat-pipe modeling and simulation approaches in nuclear systems design and analysis[J]. Annals of Nuclear Energy, 2021, 160: 108393. doi: 10.1016/j.anucene.2021.108393
[3]	TIAN Z X, WANG C L, GUO K L, et al. A review of liquid metal high temperature heat pipes: theoretical model, design, and application[J]. International Journal of Heat and Mass Transfer, 2023, 214: 124434. doi: 10.1016/j.ijheatmasstransfer.2023.124434
[4]	庄骏,张红. 热管技术及其工程应用[M]. 北京: 化学工业出版社,2000: 45-50.
[5]	WALKER K L, TARAU C, ANDERSON W G. Grooved and self-venting arterial heat pipes for space fission power systems[J]. Heat Pipe Science and Technology, An International Journal, 2014, 5(1-4): 507-514. doi: 10.1615/HeatPipeScieTech.v5.i1-4.580
[6]	ANDERSON W G, BEARD D, ANDERSON W G, TARAU C. Self-venting arterial heat pipes for spacecraft applications[C]//Proceedings of the Joint 18th IHPC and 12th IHPS. Jeju: IHPC, 2016: 25-27.
[7]	WALKER K L, TARAU C, ANDERSON W G. Alkali metal heat pipes for space fission power[C]//Proceedings of the Nuclear and Emerging Technologies for Space 2013. Albuquerque, NM: NETS, 2013: 1-10.
[8]	WANG C L, ZHANG L R, LIU X, et al. Experimental study on startup performance of high temperature potassium heat pipe at different inclination angles and input powers for nuclear reactor application[J]. Annals of Nuclear Energy, 2020, 136: 107051. doi: 10.1016/j.anucene.2019.107051
[9]	MA Y G, YU H X, HUANG S F, et al. Effect of inclination angle on the startup of a frozen sodium heat pipe[J]. Applied Thermal Engineering, 2022, 201: 117625. doi: 10.1016/j.applthermaleng.2021.117625
[10]	刘逍,田智星,王成龙,等. 高温热管传热特性实验研究[J]. 核动力工程,2020, 41(S1): 106-111.
[11]	卫光仁,柴宝华,韩冶,等. 高温钠热管传热性能试验研究[J]. 原子能科学技术,2021, 55(6): 1039-1046. doi: 10.7538/yzk.2021.youxian.0115
[12]	ZHONG R C, FENG W P, MA Y G, et al. Experimental study of heat pipe start-up characteristics and development of an enhanced model considering gas diffusion effects[J]. Applied Thermal Engineering, 2024, 257: 124460. doi: 10.1016/j.applthermaleng.2024.124460
[13]	ZHANG M H, MIAO Q X, ZHANG S Y, et al. Experimental study of non-condensable gas effects on sonic limit of sodium heat pipe[J]. Applied Thermal Engineering, 2023, 232: 120970. doi: 10.1016/j.applthermaleng.2023.120970
[14]	LEVY E K. Theoretical investigation of heat pipes operating at low vapor pressures[J]. Journal of Engineering for Industry, 1968, 90(4): 547-552. doi: 10.1115/1.3604687