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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on Heat Transfer Enhancement from Flat Plate Using Multiple Tripping Wires

복수 트리핑 와이어를 사용한 평판에서의 열전달 촉진에 관한 연구

  • Yoo, Seong-Yeon (Department of Mechanical Design Engineering, Chungnam National University) ;
  • Cho, Woong-Sun (Graduate School of Chungnam National University) ;
  • Ahn, Jong-Kyu (Graduate School of Chungnam National University)
  • Received : 2012.09.06
  • Published : 2012.12.10
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Abstract

The purpose of this research is to investigate the heat transfer enhancement by the multiple tripping wires installed on a flat plate. Naphthalene sublimation technique is used to measure the local mass transfer coefficients, and then heat transfer coefficients are calculated using heat/mass transfer analogy. Experiments are performed for the developed and developing flow conditions. Local and average heat transfer coefficients from the flat plate with three tripping wires are compared with those of no and one tripping wire. Remarkable heat transfer enhancements are found resulting from the boundary layer separation by the tripping wires, especially in the laminar boundary layer.

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References

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