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15 October 2012 A CFD analysis and optimization of a cooling solution for LED in microprojector
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In this paper, Computational fluid dynamics (CFD) analysis and design of experiment (DOE) are employed to optimize the thermal performance of LED in micro projector. First, an original micro-projector is simulated using Flotherm which shows that the junction temperature of LED exceeds the temperature limit. Secondly, a solution redesigning the air duct and reducing the effect of flow bypass and fan hub on the performance of heat sink lowers the junction temperature by 8°C. At last, DOE is applied to find the optimal setting of the design parameters for the heat sink, which reduced the LED junction temperature by 13°C. In addition, a test has been presented and the result demonstrates that the error is less than 10%.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dingjin Cai, Xuemin Cheng, Jianshe Ma, and Qun Hao "A CFD analysis and optimization of a cooling solution for LED in microprojector", Proc. SPIE 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy, 84192G (15 October 2012);

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