| 高功率LED用微喷冷却系统的分析和优化 |
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| 引用本文： | 罗小兵,杨江辉,甘志银,刘胜.高功率LED用微喷冷却系统的分析和优化[J].工程热物理学报,2008,29(11). |
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| 作者姓名： | 罗小兵 杨江辉 甘志银 刘胜 |
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| 作者单位： | 1. 华中科技大学能源与动力工程学院,武汉,430074;华中科技大学武汉光电国家实验室MOEMS研究部,武汉,430074
2. 华中科技大学武汉光电国家实验室MOEMS研究部,武汉,430074 |
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| 基金项目： | 湖北省科技攻关计划
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| 摘 要： | 对一种高功率LED散热用封闭微喷射流系统开展了初步的实验测试,测试结果和简单的数学分析表明实验用微喷系统有较大的改进空间.为了改进该系统,利用数值模拟开展微喷结构优化.首先将模拟结果与实验结果进行比较,证明了该模拟模型的可行性.然后通过该数值模型对包括实验用微喷结构在内的二种结构形式的微喷系统开展了模拟分析,寻找到一种较为合理的散热系统结构形式.结果表明:采用流体单进双出的结构形式可使得射流更均匀,与现有方式相比,该冷却系统作用下的芯片最高温度可降低23 K之多.
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| 关 键 词： | 高功率LED 微喷射流 热分析 结构优化 |
ANALYSIS AND OPTIMIZATION ON MICRO JET COOLING SYSTEM FOR HIGH POWER LED |
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| LUO Xiao-Bing,YANG Jiang-Hui,GAN Zhi-Yin,LIU Sheng.ANALYSIS AND OPTIMIZATION ON MICRO JET COOLING SYSTEM FOR HIGH POWER LED[J].Journal of Engineering Thermophysics,2008,29(11). |
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| Authors: | LUO Xiao-Bing YANG Jiang-Hui GAN Zhi-Yin LIU Sheng |
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| Institution: | LUO Xiao-Bing~(1,2) YANG Jiang-Hui~2 GAN Zhi-Yin~2 LIU Sheng~2 1. School of Energy , Power Engineering,Huazhong University of Science , Technology,Wuhan,430074,China 2. MOEMS Division,Wuhan National Lab for Optoelectronics,China |
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| Abstract: | Preliminary experimental tests on a close-looped micro jet cooling system for high power LEDs were conducted. The test results and simple analysis demonstrate that the system have room for improvement. In order to improve the system, numerical simulation was used for structrual opti- mization. The simulation model was compared with the experimental results to prove the feasibility of this model. By using the simulation model, two kinds of micro jets were investigated, it is found that the micro jet that has... |
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| Keywords: | high power LED micro jet thermal analysis structural optimization |
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