Analysis of heat transfer of loop heat pipe used to cool high power LED |
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Authors: | XiangYou Lu ZeZhao Hua MeiJing Liu YuanXia Cheng |
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Affiliation: | (1) School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China |
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Abstract: | A novel loop heat pipe (LHP) cooling device for high power LED is developed. The thermal capabilities, including startup performance,
temperature uniformity and thermal resistance of the loop heat pipe under different heat loads and incline angles have been
investigated experimentally. The obtained results indicate that the thermal resistance of the heat pipe heat sink is in the
range of 0.19–3.1 K/W, the temperature uniformity in the evaporator is controlled within 1.5°C, and the junction temperature
of high power LED can be controlled steadily under 100°C for a heat load of 100 W. |
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Keywords: | |
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