Enhancement of critical heat flux via bulk surface temperature distribution in pool boiling of water

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2025-04-05 DOI:10.1016/j.icheatmasstransfer.2025.108910

Zhihao Chen , Xiaoyan Kang , Yoshio Utaka

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Abstract

Enhancement of critical heat flux (CHF) in pool boiling through bulk surface temperature distribution is investigated. Two types of non-uniform heating plates (NUPs), a through-hole heating plate (TH-NUP) and a grooved heating plate (G-NUP), are examined. The alternating arrangement of low conductivity material (LCM) inside narrow cylindrical holes in a heating plate of high thermal conductivity material (HCM) causes different-mode-interacting boiling (DMIB) for TH-NUP with the interference of different boiling modes (nucleate and film) and intensities in boiling. Another is LCM grooves on the surface of G-NUP, which enhance CHF mainly by activated bubble detachment. In this study, the effects of material arrangement index (MAI) of pitch or area ratio of LCM on CHF are investigated experimentally. Both TH-NUP and G-NUP showed pointed curves with maximum CHFs against MAI. Those values were about factors of 2 and 1.9 larger than those of the uniform plate (UP), respectively. Although the MAI values at which the maximum values appeared were different, the CHF enhancement rate of TH-NUP showed a consistently higher value overall compared to G-NUP.

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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.