Experimental study on the effect of gravity on the heat transfer performance of a novel high-power looped heat pipe

doi:10.7523/j.ucas.2022.064

Abstract

Abstract: To solve the problem of huge energy consumption caused by data center cooling, this paper proposes a high-power air-cooled loop heat pipe that can be used for data center server cooling. The effect of gravity on the heat transfer performance of the loop heat pipe was explored through a large number of comparative experiments. The experimental results show that the gradient capillary structure and the method of re-cooling the reflux liquid proposed in this paper can effectively improve the heat transfer performance of the high-power loop heat pipe in different gravity modes. The loop heat pipe with optimized structure has a maximum heat transfer capacity of 950 W and a minimum total thermal resistance of 0.1 ℃/W in gravity-assisted mode. In addition, the high-power loop heat pipe proposed in this paper successfully operated in the anti-gravity mode.

Key words: data center cooling, high-power looped heat pipe, gradient capillary structure, anti-gravity

CLC Number:

TK124

WANG Xinyue, LI Ji. Experimental study on the effect of gravity on the heat transfer performance of a novel high-power looped heat pipe[J]. Journal of University of Chinese Academy of Sciences, 2024, 41(4): 442-451.

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