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CLC number: TK172.4

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Received: 2004-01-07

Revision Accepted: 2004-04-15

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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.12 P.1565-1569


Experimental study on transient behavior of semi-open two-phase thermosyphon

Author(s):  ZHU Hua, WANG Jian-xin, ZHANG Qiao-hui, TU Chuan-jing

Affiliation(s):  Department of Energy Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   zhuhua@zju.edu.cn

Key Words:  Semi-open two-phase thermosyphon (SOTPT), Transient heat transfer, Startup, Lack of water, Shutdown

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ZHU Hua, WANG Jian-xin, ZHANG Qiao-hui, TU Chuan-jing. Experimental study on transient behavior of semi-open two-phase thermosyphon[J]. Journal of Zhejiang University Science A, 2004, 5(12): 1565-1569.

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An experimental system was set up to measure the temperature, pressure, heat transfer rate and mass flow rate in a semi-open two-phase thermosyphon. The behaviors of a semi-open two-phase thermosyphon during startup, shutdown and lack of water were studied to get complete understanding of its thermal characteristics. The variation of wall temperature, heat-exchange condition and pressure fluctuations of semi-open two-phase thermosyphons showed that the startup of SOTPT needs about 60~70 min; the startup speed of SOTPT is determined by the startup speed of the condensation section; the average pressure in the heat pipe is equal to the environmental pressure usually; the shutdown of SOTPT needs about 30~50 min; a semi-open two-phase thermosyphon has good response to lack of water accident.

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