Experimental investigations on start-up and thermal performance of sodium heat pipe under swing conditions
Teng W, Wang X, Zhu Y (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 152
Article Number: 119505
DOI: 10.1016/j.ijheatmasstransfer.2020.119505
Abstract
High-temperature heat pipes (HTHPs) have a potential of being used for passive heat dissipation of marine nuclear reactors in emergency. In order to understand the influence of wave action on the performance of HTHPs, a sodium heat pipe is fabricated and experimentally tested in this work. The effects of low-frequency swing on start-up and thermal performance of this heat pipe are examined and compared with the static state tests. The results show that swinging motion has a negligible influence on the whole start-up performance of the heat pipe, however, it would lead to the small-amplitude periodic temperature fluctuations especially at the evaporator. Temperature fluctuation frequency is nearly corresponding to the swing, and the temperature fluctuation amplitude is increased with the swing amplitude. The steady-state thermal performance is slightly decreased with increasing swing speed and decreasing swing amplitude in terms of thermal resistance under test conditions, but the influence seems negligible as well.
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APA:
Teng, W., Wang, X., & Zhu, Y. (2020). Experimental investigations on start-up and thermal performance of sodium heat pipe under swing conditions. International Journal of Heat and Mass Transfer, 152. https://dx.doi.org/10.1016/j.ijheatmasstransfer.2020.119505
MLA:
Teng, Wanfeng, Xiaoyuan Wang, and Yuezhao Zhu. "Experimental investigations on start-up and thermal performance of sodium heat pipe under swing conditions." International Journal of Heat and Mass Transfer 152 (2020).
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