High performance forced air cooling scheme employing microchannel heat exchangers
High performance forced air cooling scheme employing microchannel heat exchangers
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DOI：
10.1109/95.477466
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发表时间：
1995-12-01
期刊：
影响因子：
--
通讯作者：
Haberger, K
中科院分区：
文献类型：
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作者：
Kleiner, MB;Kuhn, SA;Haberger, K
本文从理论上和实验上研究了一种高性能强制空气冷却方案，该方案采用微通道平行板翅式散热器和管道将空气输送到散热器或选择性地从散热器输送空气，根据热阻、压降和泵浦功率对冷却系统的性能进行建模，进行优化并讨论设计权衡。据观察，管子对最佳散热器设计和工作点有重大影响，横向尺寸为 5 x 5 cm(2)、翅片长度为 1.5 和 2.5 cm 的样品散热器采用简单的组装工艺由铜箔和铝箔制成，散热器的翅片厚度和通道宽度分别约为 200 和 500 μm，测量的热阻低至 0.2 K/W，结果目前的研究与处理直接空气冷却的先前工作进行比较，使用所研究的冷却方法可实现的热性能优于使用露天冷却散热器以及采用硅微冷却器可实现的热性能。
In this paper, a high performance forced air cooling scheme is theoretically and experimentally investigated which employs microchannel parallel plate-fin heat sinks and tubes to deliver the air to and optionally from the heat sink, The performance of the cooling system is modeled in terms of thermal resistance, pressure drop, and pumping power, Optimizations are performed and design trade-offs discussed. Tubes are observed to have a significant impact on optimum heat sink design as well as operating point, Sample heat sinks with lateral dimensions of 5 x 5 cm(2) and fin lengths of 1.5 and 2.5 cm were fabricated from copper and aluminum foils using a simple assembly process, Fin thicknesses and channel widths of the heat sinks are on the order of 200 and 500 mu m, respectively, Thermal resistances as low as 0.2 K/W are measured, Results of the present study are compared to prior works dealing with direct air cooling, The thermal performances achievable using the investigated cooling approach are superior to those attainable using open air cooled heat sinks as well as those employing silicon microcoolers.