Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Effects of Symmetrically Arranged Heat Sources on the Heat Release Performance of Extruded-Type Heat Sinks

열원의 대칭 배열에 따른 압출형 히트싱크의 방열성능 연구

  • Ku, Min Ye (Division of Mechanical Design Engineering, Chonbuk Nat'l Univ.) ;
  • Shin, Hon Chung (International Carbon R&D center, Korea Institute of Carbon Convergence Technology) ;
  • Lee, Gyo Woo (Division of Mechanical Design Engineering, Chonbuk Nat'l Univ.)
  • 구민예 (전북대학교 기계설계공학부) ;
  • 신헌충 (한국탄소융합기술원 국제탄소연구소) ;
  • 이교우 (전북대학교 기계설계공학부)
  • Received : 2015.07.16
  • Accepted : 2015.12.06
  • Published : 2016.02.01
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Abstract

In this study we investigated the effects of symmetrically arranged heat sources on the heat release performances of extruded-type heat sinks through experiments and thermal fluid simulations. Also, based on the results we suggested a high-efficiency and cost-effective heat sink for a solar inverter cooling system. In this parametric study, the temperatures between heaters on the base plate and the heat release rates were investigated with respect to the arrangements of heat sources and amounts of heat input. Based on the results we believe that the use of both sides of the heat sink is the preferred method for releasing the heat from the heat source to the ambient environment rather than the use of a single side of the heat sink. Also from the results, it is believed that the symmetric arrangement of the heat sources is recommended to achieve a higher rate of heat transfer. From the results of the thermal fluid simulation, it was possible to confirm the qualitative agreement with the experimental results. Finally, quantitative comparison with respect to mass flow rates, heat inputs, and arrangements of the heat source was also performed.

본 연구는 실험적인 방법과 열유동 해석 방법을 사용하여 대용량 압출형 히트싱크의 방열성능에 미치는 열원 대칭배열의 영향을 고찰하고, 이를 바탕으로 제조원가가 낮은 고효율의 히트싱크를 제안하고자 한다. 실험결과를 통해서 유사한 유효 유동단면적을 가지는 경우에 히트싱크의 전열면적이 방열성능에 큰 영향을 줌을 확인할 수 있었으며, 히트싱크의 양면 모두를 이용하는 방열이 훨씬 효과적인 방열이 가능함을 알 수 있었다. 또한, 대칭으로 열원을 배치한 경우가 비대칭 배치보다 효율적으로 방열됨을 알 수 있었다. 해석연구의 결과를 통해서는 실험결과와 정성적으로는 유사한 경향을 확인할 수 있었으며, 실험연구에서 확인하지 못한 질량유량별 및 투입열량별 추이, 단면과 양면 사용의 정량적 비교 등이 가능하였다.

Keywords

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