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Proceedings Paper

A CFD analysis and optimization of a cooling solution for LED in microprojector
Author(s): Dingjin Cai; Xuemin Cheng; Jianshe Ma; Qun Hao
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Paper 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%.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
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); doi: 10.1117/12.970536
Show Author Affiliations
Dingjin Cai, Tsinghua Univ. (China)
Xuemin Cheng, Tsinghua Univ. (China)
Jianshe Ma, Tsinghua Univ. (China)
Qun Hao, Beijing Instiute of Technology (China)


Published in SPIE Proceedings Vol. 8419:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy
Yadong Jiang; Junsheng Yu; Zhifeng Wang, Editor(s)

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