Establishment and analysis of a new steady-state operation model of loop heat pipe

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2025-02-21 DOI:10.1016/j.icheatmasstransfer.2025.108754

Kangning Xiong , Yitong Chen , Wenjuan Zhang , Shuangfeng Wang

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引用次数: 0

Abstract

In this study, an original loop heat pipe (LHP) was used as the physical model. Based on the variable conductivity mode (VCM) and constant conductivity mode (CCM) of LHP, a steady-state mathematical model of the LHP was established, and the operational characteristics of the LHP were simulated by this mathematical model. The simulated results indicated that the mathematical model can accurately assess the operational temperature of the LHP with a flat evaporator. As the heat input increased, the length ratio and length of two-phase region in the condensation line, and the pressure drop of each component of LHP increased gradually. When the heat input was 750 W, the length of the two-phase region in the condensation line was 230.5 mm, which accounted for 42.3 % of the total length of the condensation line. The pressure drop of the condensation line was the highest in the entire heat input range from 50 W to 750 W compared to other components of the LHP. The ratio of heat leak to heat input decreased with the increasing of heat input. The largest ratio of heat leak to heat input of 5.93 % was obtained at the heat input of 50 W.

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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.