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华中科技大学能源与动力工程学院 武汉 430074
申利梅,女,教授,华中科技大学能源与动力工程学院,027-87542618,E-mail:ep_shenlimei@hust.edu.cn,研究方向:热电制冷及发电技术,光电子器件热管理技术。Shen Limei, female, professor, School of Energy and Power Engineering, Huazhong University of Science and Technology,86-27-87542618, E-mail:ep_shenlimei@hust.edu.cn. Research fields: thermoelectric cooling and power generation technology;thermal management in optoelectronic devices.
收稿:2025-11-17,
修回:2026-01-04,
录用:2026-01-13,
网络首发:2026-04-24,
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朱学跃,黄涛,李美勇等.大高宽比微通道流动沸腾传热特性实验研究[J].制冷学报,
Zhu Xueyue Huang Tao Li Meiyong Liu Zeyu Shen Limei Liu Zhichun.Experimental Study of Flow Boiling Heat Transfer Performance in High Aspect Ratio Microchannels[J].Journal of Refrigeration,
朱学跃,黄涛,李美勇等.大高宽比微通道流动沸腾传热特性实验研究[J].制冷学报, DOI:10.12465/issn.0253-4339.20251117001.
Zhu Xueyue Huang Tao Li Meiyong Liu Zeyu Shen Limei Liu Zhichun.Experimental Study of Flow Boiling Heat Transfer Performance in High Aspect Ratio Microchannels[J].Journal of Refrigeration, DOI:10.12465/issn.0253-4339.20251117001.
为研究大高宽比微通道流动沸腾传热特性,本文以高宽比为18、基材为紫铜的微通道散热器为实验对象,搭建性能测试实验平台,实验研究了持续和间歇2种热源加热模式下微通道散热器温度流动响应与散热特性。结果表明:在持续加热300 W/cm
2
与间歇加热750 W/cm
2
-加热时间90 s条件下,该微通道散热器表现出良好的两相传热性能,热源面稳定温度能够控制在75 ℃水平内,进出口压降维持在约18 kPa。流量与微通道进出口压降之间存在较强的正相关关系。
In this study, we analyzed the flow-boiling heat transfer behavior of a copper microchannel heat sink with a high geometric aspect ratio of 18. An experimental platform was established to systematically evaluate the thermohydraulic response and heat dissipation capability under two heating regimes: continuous and intermittent. In the continuous mode with a heat flux of 300 W/cm² and in the intermittent mode with 750 W/cm² for 90 s, the heat sink successfully maintained the heat-source surface temperature below 75 ℃, while the inlet-outlet pressure drop remained around 18 kPa, indicating excellent two-phase thermal and hydraulic performance. In addition, the flow rate and microchannel pressure drop exhibited a strong positive correlation.
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