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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Heat Transfer Performance of the Duct with Various Cross Section in Heat Exchanger

단면형상 변화에 따른 전열교환기 열전달 특성변화에 대한 연구

  • Kim, Eung-Bok (Department of Mechanical Engineering, University of Incheon) ;
  • Han, Min-Sub (Department of Mechanical Engineering, University of Incheon) ;
  • Kim, Nae-Hyun (Department of Mechanical Engineering, University of Incheon) ;
  • Won, Tae-Yeon (Department of Mechanical Engineering, University of Incheon)
  • Received : 2009.12.18
  • Accepted : 2010.03.30
  • Published : 2010.05.10
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Abstract

It is a critical task to keep the ventilation system working in a proper and efficient manner in large multi-storey buildings, and the enthalpy exchanger is becoming an increasingly important part of the ventilation system by playing the function of channeling heat and moisture. We present a computational study on the heat transfer performance of the cross-flow enthalpy exchanger, which is in large use for residential buildings. The ducts are considered whose cross-sectional shapes resemble triangle and longitudinal centerline a cosine wave. It is shown that, as the cross-sectional shape departs from triangle, the heat transfer performance of the duct tends to deteriorate. Also, applying the wave-like shape to the longitudinal centerline of the duct increases the rate of heat transfer and the applied pressure-gradient at the same time. The origin of the performance variations in the cases considered are quantitatively analyzed and discussed.

Keywords

Acknowledgement

Supported by : 인천대학교

References

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