A Study on Heat Transfer Characteristics of Impinging Jet about Distance Ratio leer Thermal Control

전열제어를 위한 충돌제트의 거리비에 따른 열전달특성에 관한 연구

  • 김동균 (한국해양대학교 조선 해양기자재) ;
  • 김정환 (한국해양대학교 대학원 기계공학과) ;
  • 배석태 (동명대학 기계과) ;
  • 김시범 (동아대학교 기계공학과) ;
  • 이영호 (한국해양대학교 기계.정보공학부)
  • Published : 2001.11.01

Abstract

This paper presents an information about the heat transfer characteristics of impinging jet in eletronic equipment with infrared image processing unit. There have been many experimental investigations and theoretical studies on impinging jet because of application in a wide variety of industrial process including electronic equipment. In this study, we used infrared image processing unit to visualize heat transfer characteristics of impinging jet in eletronic equipment. Infrared image processing unit is one of non-contact temperature measuring methods and it is possible to minimize flow resistance and this measurement is comparatively accurate. The main parameters are distance between nozz1e and heat source. Reynolds number is 6000.

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References

  1. AIAA Paper No.68-564 no.68 Evaluation of Internal Heat Transfer Coefficients for Impingement Cooled Turbine Airfoils Florschuetz(et al.)
  2. ASME Paper No.87-HT-35 no.87-HT-35 "Jet Impingement Heat Transfer" A literature survey Downs, S. J.;James, E. H.
  3. ASME J.Heat Tranfer v.119 Impingement Cooling Flow and Heat Transfer Under Acoustic Excitation C. Gau;W. Y. Sheu;C. H. Shen
  4. Int. J. Heat Mass Transfer v.8 The Role of Turbulence in Determining the heat Transfer Characteristics of Impinging Jet Gardon, R.;Akfrat, J. C.