Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Cooling Performance Study of a Impinging Water Jet System with Heat Sink for High Power LEDs

분사냉각모듈 내에 부착된 히트싱크에 따른 고출력 LED의 냉각성능에 관한 연구

  • Ku, G.M. (Graduate school of Dept. of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Kim, K. (Dept. of Mechanical System Engineering, Kumoh National Institute of Technology) ;
  • Park, S.H. (Dept. of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Choi, S.D. (Dept. of intelligent Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Heo, J.W. (National Academy of Agricultural science, Rural Development Administration)
  • 구건모 (금오공대 기계공학과 대학원) ;
  • 김경진 (금오공대 기계시스템공학과) ;
  • 박상희 (금오공대 기계공학과) ;
  • 최성대 (금오공대 지능기계공학과) ;
  • 허정욱 (농촌진흥청 국립농업과학원 농업공학부)
  • Received : 2013.11.25
  • Accepted : 2013.12.30
  • Published : 2013.12.31
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Abstract

The purpose of this study is to investigate cooling performance of high power LEDs from 100 to 200 W class by using a jet impingement cooling module. The numerical analysis of forced convection cooling inside cooling module is carried out using a multi-purpose CFD software, FLUENT 6.3. In the experiments, the LED cooling system consists of jet impingement module, heat exchanger, water reservoir, and pump. In the present study, the cooling performance of jet impingement cooling module is investigated to determine the effect of the heat sink types on the impinging surface, the space and length of fins. Numerical and experimental studies show the reasonable agreement of LED metal PCB temperature between those results and give the optimized design parameters such as the space of fin and the length of fin. Also, the pin fin type of heat sink is found to be more efficient than the plate type heat sink in jet impingement cooling.

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References

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