Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Experimental Study on the Performance of an Electric Component Liquid Cooling System with Variation of the Waterblock Internal Shape

워터블록 내부형상에 따른 수냉식 전자부품 냉각장치 성능변화에 관한 실험적 연구

  • Hahm, Hyung Chang (Graduate School of NID Fusion Technology, Seoul National University of Science and Technology) ;
  • Park, Chang Yong (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
  • 함형창 (서울과학기술대학교 NID 융합기술대학원) ;
  • 박창용 (서울과학기술대학교 기계시스템디자인공학과)
  • Received : 2013.02.01
  • Published : 2013.06.10
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Abstract

An experimental study on the performance of a liquid electric component cooling system was performed. The thermal resistance and pressure drop at a heat sink were measured, for aluminum waterblocks with four different internal shapes, with either smooth surface, porous media filling, or with fins of 5 mm height, or of 7 mm height. The fins had 0.5 mm thickness, and the gap between the fins was 0.5 mm. The waterblock internal dimension was $36.5{\times}36.5{\times}7mm$. Compared with the waterblock with smooth surface, the thermal resistance reduction was 11%, 46%, and 42% for waterblocks with porous media filling, 5 mm, and 7 mm fins, respectively. A new dimensionless parameter was suggested to evaluate the waterblock performance, with the simultaneous consideration of thermal resistance and pressure drop. The performance of the waterblock with fins of 5 mm height was best by parameter.

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References

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