http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
핀-휜 형상에 따른 전자기기의 공기냉각 열전달성능의 영향
허견(Kyeon Heo),박준범(Joon-Beom Park),신석원(Seok Won Shin),김수연(SooYoun Kim) 대한설비공학회 2006 대한설비공학회 학술발표대회논문집 Vol.2006 No.11
In present study, the effect of shapes of pin-fins of an air cooling module on the heat transfer performance for electronic packaging applications was numerically investigated. The types of pin-fin cross-sectional shapes considered in this study were ellipse and wing, and the circle shape was used as a reference. They have the same cross-sectional areas and the same heights, but they have the different surface areas. As the results, the surface area, the heat transfer coefficient, and the heat transfer performance of pin-fins greatly depend on their shapes. Of the three types(i. e, ellipse, wing, and circle) of pin-fins, the wing type fin with suitable shape produced the best heat transfer performance which was expressed as -hA<SUB>s</SUB>. This result implies that the cooling capacity of the pin-fin heat sink can be enhanced by the only shape changing without increasing air flow-rate or fin density.
Wing형 핀-휜의 형상에 따른 공기 냉각기의 열전달에 대한 수치적 해석
김수연(Soo-Youn Kim),허견(Kyeon Heo),신석원(Seok-Won Shin) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
In present study, the flow and heat transfer of the aligned pin-fin array of the air cooling module for electronic packaging application were analyzed with change of fin shape. The shapes of pin-fins considered in this study were ellipse and wing, and the circle. The fins have same cross-sectional area and height, but they have different surface areas. As the results, the surface area, the heat transfer coefficient, and the heat transfer performance of pin-fins greatly depend on their shapes. Of the three types(i.e, ellipse, wing, and circle) of pin-fins, the wing type pin-fin with suitable shape produced the best heat transfer performance which was expressed as (hA). This result implies that the cooling capacity of the pin-fin cooler can be significantly enhanced by the only fin shape changing without increasing air flow-rate or fin density.
날개형 핀-휜의 기하학적 형상이 전자기기 모듈 냉각용 공기냉각기의 유동 및 열전달에 미치는 영향
김수연(Soo-Youn Kim),허견(Kyeon Heo),신석원(Seok-Won Shin) 한국청정기술학회 2008 청정기술 Vol.14 No.4
본 연구는 전자기기 모듈의 공기 냉각용 정렬 배열된 핀-휜 열교환기에서 휜 형상의 변화가 유동 및 열전달에 미치는 영향을 수치적으로 해석하였다. 휜 단면의 기하학적 형상은 세 가지로서 원형, 타원형, 그리고 날개형이었다. 취급된 모든 휜의 단면적과 높이는 서로 동일하지만, 그 표면적만은 서로 달랐다. 그 결과, 휜의 표면적, 열전단계수, 그리고 열전달 성능은 휜의 형상에 크게 의존하였다. 적절한 형상을 갖는 휜의 열전달 성능은 세 가지 형태의 핀-휜 중에서 날개형 핀-휜이 가장 우수하였다. 이러한 결과로부터 공기의 유량증가 혹은 휜의 밀도증가 없이 적절한 핀-휜의 형상변화만으로도 핀-휜 열교환기의 냉각성능을 크게 향상 시킬 수 있음을 알 수 있었다. In this study, the flow and heat transfer of the aligned pin-fin array of the air cooling module for electronic packaging application were numerically analyzed with various fin shapes. The geometric cross-sectional shapes of pin-fins considered in this study were ellipse, wing and circle. The fins had same cross-sectional area and height, but they had different surface areas. As the results, the surface area, the heat transfer coefficient, and the heat transfer performance of pin-fins greatly depended on their shapes. Of the three types of pin-fins, the wing type pin-fin with suitable shape produced the best heat transfer performance. This result implies that the cooling capacity of the pin-fin cooler can be significantly enhanced only by the change of fin shape without increasing air flow-rate or fin density.