| 颗粒填充液冷式散热器的传热及流阻性能 |
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| 引用本文： | 孙滔,高学农,唐亚男,颜家桃,赵洪彬.颗粒填充液冷式散热器的传热及流阻性能[J].化学工程,2010,38(12). |
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| 作者姓名： | 孙滔 高学农 唐亚男 颜家桃 赵洪彬 |
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| 作者单位： | 华南理工大学传热强化与过程节能教育部重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 通过在液冷式CPU散热器蛇形流道内填充不同粒径的玻璃珠和碳钢珠,对改进前后液冷式CPU散热器进行实验研究,分析了各因素对液冷式CPU散热器的传热和流阻性能的影响规律。结果表明:散热器填充玻璃珠后的对流换热系数为填充前的1.4—2.5倍,阻力系数f是填充前的4—10倍;散热器填充碳钢珠的散热效果和流阻性能均优于填充玻璃珠的,其Nusselt数是填充玻璃珠的1.5—2倍,而流动阻力仅是填充玻璃珠的0.5—0.7倍。
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| 关 键 词： | 散热器 多孔介质 传热强化 流动阻力 |
Heat transfer and flow resistance performance of liquid cooling heat sink with particle packed channel |
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| SUN Tao,GAO Xue-nong,TANG Ya-nan,YAN Jia-tao,ZHAO Hong-bin.Heat transfer and flow resistance performance of liquid cooling heat sink with particle packed channel[J].Chemical Engineering,2010,38(12). |
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| Authors: | SUN Tao GAO Xue-nong TANG Ya-nan YAN Jia-tao ZHAO Hong-bin |
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| Affiliation: | SUN Tao,GAO Xue-nong,TANG Ya-nan,YAN Jia-tao,ZHAO Hong-bin(Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Ministry of Education,South China University of Technology,Guangzhou 510640,Guangdong Province,China) |
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| Abstract: | The liquid cooling heat sink before and after modification was experimentally studied by filling different diameters of stainless steel beads and glass beads into the channel.The influence rules of each factor on the heat transfer and flow resistance of the liquid cooling heat sink were analyzed.The results show that the convective heat transfer coefficient of heat sink packed with glass beads is 1.4-2.5 times that of unpacked heat sink and the friction factor f of heat sink packed with glass beads is 4-10 ... |
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| Keywords: | heat sink porous media heat transfer enhancement flow resistance |
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