歧管微通道热沉传热试验研究

doi:10.6040/j.issn.1672-3961.0.2024.332

山东大学学报 (工学版) ›› 2026, Vol. 56 ›› Issue (2): 175-180.doi: 10.6040/j.issn.1672-3961.0.2024.332

• 能动工程——热管理专题 • 上一篇

歧管微通道热沉传热试验研究

周乃香,徐锦锦,张井志^*

山东大学核科学与能源动力学院, 山东济南 250061

发布日期:2026-04-13
作者简介:周乃香(1987— ),女,山东潍坊人,实验师,硕士,主要研究方向为强化传热与节能技术. E-mail:zhounaixiang@sdu.edu.cn. *通信作者简介:张井志(1989— ),男,山东枣庄人,教授,博士生导师,博士,主要研究方向为高效热管理技术. E-mail:zhangjz@sdu.edu.cn
基金资助:
山东省自然科学基金资助项目(ZR2021ME080)

Experimental study of heat transfer in manifold microchannel heat sinks

ZHOU Naixiang, XU Jinjin, ZHANG Jingzhi^*

ZHOU Naixiang, XU Jinjin, ZHANG Jingzhi^*(School of Nuclear Science, Energy and Power Engineering, Shandong University, Jinan 250061, Shangdong, China

Published:2026-04-13

摘要/Abstract

摘要： 为研究高热流密度散热装置的性能,搭建歧管微通道流动换热可视化试验台,对铜基微通道的换热性能进行试验研究。以去离子水为工质,通过改变加热功率(100~400 W),分析工质流量分别为120、300 mL/min时单相和沸腾流动对传热性能的影响,并观察气泡生长过程。结果表明,单相或沸腾换热时热阻均随着热流量的增加出现小幅降低;沸腾状态下,气泡沿壁面产生并从底部脱离向歧管流道迁移,歧管进口流道内聚集的气体达到一定程度时会流经下方微通道向出口流道迅速转移并逸出,提高散热性能。

关键词: 歧管装置, 微通道, 单相流动, 沸腾换热, 气泡生长

Abstract: To study the performance of high heat flux cooling devices, a visual experimental setup for flow and heat transfer in manifold microchannels was built. Experiments were conducted to investigate the heat transfer performance of copper-based microchannels. Using deionized water as the coolant, the heat power was varied from 100 to 400 W. The effects of single-phase and boiling flow on heat transfer were analyzed at coolant flow rates of 120 and 300 mL/min. The bubble growth process was also observed. Results showed that under both single-phase and boiling conditions, the thermal resistance decreased slightly as the heat flux increased. During boiling, bubbles formed along the wall, detached from the bottom, and migrated into the manifold channels. When gas had accumulated sufficiently at the inlet of the manifold, it quickly passed through the microchannels below and exited through the outlet channel, enhancing heat transfer performance.

Key words: manifold arrangement, microchannel, single-phase flow, boiling heat transfer, bubble growth

中图分类号:

TK124

周乃香,徐锦锦,张井志. 歧管微通道热沉传热试验研究[J]. 山东大学学报 (工学版), 2026, 56(2): 175-180.

ZHOU Naixiang, XU Jinjin, ZHANG Jingzhi. Experimental study of heat transfer in manifold microchannel heat sinks[J]. Journal of Shandong University(Engineering Science), 2026, 56(2): 175-180.

参考文献

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歧管微通道热沉传热试验研究

Experimental study of heat transfer in manifold microchannel heat sinks

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