A CFD analysis and optimization of a cooling solution for LED in microprojector

Dingjin Cai; Xuemin Cheng; Jianshe Ma; Qun Hao

doi:10.1117/12.970536

15 October 2012 A CFD analysis and optimization of a cooling solution for LED in microprojector

Dingjin Cai, Xuemin Cheng, Jianshe Ma, Qun Hao

Proceedings Volume 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy; 84192G (2012) https://doi.org/10.1117/12.970536
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

Abstract

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%.

Citation Download Citation

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); https://doi.org/10.1117/12.970536

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