Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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A Study on Thermal Performance of an Impinging Cooling Module for High Power LEDs

고출력 LED에 적용한 분사냉각모듈의 열성능에 관한 연구

  • Lee, Dong Myung (Graduate School, Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Park, Sang Hee (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Kim, Dongjoo (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Kim, Kyoungjin (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
  • 이동명 (금오공과대학교 기계공학과 대학원) ;
  • 박상희 (금오공과대학교 기계공학과) ;
  • 김동주 (금오공과대학교 기계공학과) ;
  • 김경진 (금오공과대학교 기계시스템공학과)
  • Received : 2012.02.02
  • Accepted : 2012.02.29
  • Published : 2012.03.31
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Abstract

Thermal performance of an impinging cooling module for 150 W class high power LEDs have been investigated numerically and experimentally. Parametric studies were performed to compare the effect of several design parameters such as nozzle number, nozzle spacing, coolant flow rate, and impinging distance. The experiments were also carried out in order to validate the numerical results and the comparison between the experimental and numerical results showed good agreement. It is found that the overall thermal resistance of impinging cooling module strongly depends on the nozzle number, nozzle spacing, flow rate, and impinging distance. This results showed the optimized operating condition when number of nozzles is 25, nozzles spacing is 4mm, flow rate is 2.70 lpm, distance between nozzles and impinging surface is 2 mm.

Keywords

References

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