Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Pressure Loss and Forced Convective Heat Transfer in an Annulus Filled with Aluminum Foam

발포 알루미늄이 삽입된 환형관에서의 압력손실 및 강제대류 열전달

  • Noh Joo-Suk (Department of Indoor Environment System, Kyonggi Institute of Technology) ;
  • Lee Kye-Bock (School of Mechanical Engineering, Chungbuk National University) ;
  • Lee Chung-Gu (Department of Indoor Environment System, Kyonggi Institute of Technology)
  • 노주석 (경기공업대학 실내환경시스템과) ;
  • 이계복 (충북대학교 기계공학부) ;
  • 이충구 (경기공업대학 실내환경시스템과)
  • Published : 2005.09.01
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Abstract

An experimental investigation has been carried out for aluminum foam heat sink inserted into the annulus to examine the feasibility as a heat sink for high performance forced water cooling in the annulus. The local wall temperature distribution, inlet and outlet pressures and temperatures, and heat transfer coefficients were measured for heat flux of 13.6, 18.9, 25.1, 31.4 $kw/m^2$ and Reynolds number ranged from 120 to 2000. Experimental results show that the friction factor is higher than clear annulus without aluminum foam, while the significant augmentation in Nu is obtained. This technique can be used for the compactness of the heat exchanger.

Keywords

References

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