Fluid Flow and Temperature Distribution around a Surface-Mounted Module Cooled by Forced Air Flow in a Portable Personal Computers

휴대용 PC내에 실장된 강제공랭 모듈 주위의 유체유동과 온도분포

  • 박상희 (금오공과대학교 기계공학부) ;
  • 신대종 ((주)아일인텍 기술연구소) ;
  • 이인태 (금오공과대학교 대학원)
  • Published : 2002.08.01

Abstract

This paper reports an experimental study around a module about forced air flow by blower($35{\times}35{\times}6mm^3$) in portable PC(10mm high, 200mm wide, and 235mm long). The channel inlet flow velocity has been varied between 0.26, 0.52 and 0.78m/s. The power input to the module is 4Wthis report, particular attention is directed to the fluid flow and adiabatic wall temperature($T_(ad)$) around a module which is under fluid mechanical and thermal influences of the module. The fluid flow around a module was visualized using PIV system. Liquid crystal thernography is used to determine the adiabatic wall temperature around a heated module on an acrylic board. Plots of $T_(ad)$ (or F) show marked effects of dispersion of thermal wake near the module.

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