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

Dingjin Cai*, Xuemin Cheng, Jianshe Ma, Qun Hao

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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%.

Original languageEnglish
Title of host publication6th International Symposium on Advanced Optical Manufacturing and Testing Technologies
Subtitle of host publicationOptoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy
DOIs
Publication statusPublished - 2012
Event6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy - Xiamen, China
Duration: 26 Apr 201229 Apr 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8419
ISSN (Print)0277-786X

Conference

Conference6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy
Country/TerritoryChina
CityXiamen
Period26/04/1229/04/12

Keywords

  • Computational fluid dynamics (CFD)
  • DOE
  • Junction temperature
  • LED
  • Micro projector
  • Optimization

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