Effect of Internal Helical Microfin on Condensation Performance of Two-Phase Closed Thermosyphon

Abstract:

This paper investigates the condensation performance of a novel type of two-phase closed thermosyphon with internal helical microfin. The length of the thermosyphon is 1500 mm, with the filling ratio of 60%. A series of experiments were conducted for the novel and conventional thermosyphons. The results show that the internal helical microfins could not only ameliorate the thermal response characteristic but also improve the condensation heat transfer coefficient by 116.87% for the higher heat input. A correlation was developed to predict the condensation heat transfer coefficient of the novel thermosyphon.

• Periodical: Advanced Materials Research (Volumes 516-517)
• Pages: 9-14
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.516-517.9
• Online since: May 2012
• Authors: Xin Yu Wang, Gong Ming Xin, Fu Zhong Tian, Lin Cheng
• Keywords: Condensation Heat Transfer Coefficient, Internal Helical Microfin, Thermal Response Characteristic, Thermosyphon

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