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Received: 2004-01-07

Revision Accepted: 2004-04-15

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Bio-Design and Manufacturing  2022 Vol.5 No.12 P.1565~1569

10.1631/jzus.2004.1565


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 D, 2022, 5(12): 1565~1569.

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%A TU Chuan-jing
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Abstract: 
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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Farsi, H., Joly, J.L., Miscevic, M., Platel, V., Mazet, N., 2003. An experimental and theoretical investigation of the transient behavior of a two-phase closed thermosyphon. Applied Thermal Engineering, 23(15):1895-1912.

[2] Ivanovaki, M.N., 1987. The Physical Principle of Heat Pipe. China Petrochemical Press, Beijing, China, p.5-25 (in Chinese).

[3] Tu, C.J., Hong, R.H., Wang, P.J., 1989. Applications of Gravity Heat Pipes Heat Exchangers in Waster Heat Recovery System. Zhejiang University Press, Hangzhou, China, p.5-45 (in Chinese).

[4] Wedekind, G.L., Bhatt, B.L., 1989. An experimental and theoretical study of transient pressure drop in two-phase condensing flows. Trans. of the ASME, 111(5):546-551.

[5] Zhu, H., Sun, Z.F., Hong, R.H., Tu, C.J., 1992. Heat Transfer Characteristics Study on Two-phase Open Thermosyphon and Its Application. Proc. of Int. Power Engineering Conf., Hangzhou, China, p.659-663.

[6] Zhu, H., Hong, R.H., Guan, J.C., Tu, C.J., 2001. Experimental study on semi-open heat pipes and its applications. Journal of Zhejiang University SCIENCE, 2(4):426-431.

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