Cooling effect of an electronic module with a variation of the inlet air temperature

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Journal of the Korea Institute of Military Science and Technology 2001;4(1):264-273.

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유입공기의 온도변화가 전자모듈의 냉각에 미치는 영향

이진호, 조성훈

¹육군3사관학교 기계공학과
²경북대학교 대학원 기계공학부

Abstract

The conjugate heat transfer from a protruding module in a horizontal channel with a variation of air temperature is experimentally investigated. It is an aim of this study is to estimate temperature difference between a module and air. This study is performed with a variation of parameters that are air temperatures($T_i,=25^{circ}C{sim}55^{circ}C),$ thermal resistance($R_c=158 K/W),$ air velocities ( 4V_i=0.1$ m/s~l.5 m/s ), and input power (Q=3 W, 7 W ). The results show that as the thermal resistance increases, the effect of air temperatures are decreased. And input power was most effective parameter on the temperature difference between a module and air.

Key Words: Inlet air temperature, Thermal resistance, Module, Input power, Horizontal channel