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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Study on Effect of Channel Intrusion Depth on the Two-Phase Flow Distribution at Header-Channel Junction

헤더-채널 분기관의 채널 돌출길이가 2상 유동 분배에 미치는 영향에 대한 연구

  • Lee, Jun Koung (Department of Mechanical Engineering, Kyungnam University)
  • Received : 2016.03.24
  • Accepted : 2016.09.22
  • Published : 2016.11.10
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Abstract

The main objective of this work is to experimentally investigate the effect of angle variation and intrusion depth of channels on the distribution of two-phase flow at header-channel junctions. The dimensions of the header and the channels in cross-section were fixed at $16mm{\times}16mm$ and $12mm{\times}1.8mm$, respectively. Air and water were used as the test fluids. Two different header-channel positions were tested : a vertical header with horizontal channels (case VM-HC) and a horizontal header with horizontal channels (case HM-HC). In all cases, the intrusion depths of the channels are 0 mm, 2 mm, and 4 mm. For the case of the intrusion depth of VM-HC, the flow distribution became more uniform. However, the intrusion depth negatively affected the flow distribution for the case of HM-HC because liquid separation delay occurred.

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References

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