Volume 11: Proceedings of 12th International Conference on Applied Energy, Part 3, Thailand/Virtual, 2020

Experimental research about the boiling heat transfer mechanism in a pump driven loop thermosyphon system Tao Ding, Han wen Cao, Xiao xuan Chen, Zhen li*

Abstract

This work has studied the boiling heat transfer mechanism in a pump driven loop thermosyphon system. The coolant is Freon R134a which flows and boils in a tube with inside diameter of 8.05 mm. The results show that at a constant heat flux, the boiling heat transfer coefficient is not influenced by the coolant’s mass flow rate. In other ward, the boiling mechanism at this situation is the nucleate boiling instead of the convection boiling.

Keywords Boiling mechanism, Nucleate boiling, Pump driven, loop thermosyphon

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