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 Dividing Two-phase Annular flow in a Horizontal Micro T-junction

수평 마이크로 T 자관에서의 2상 환상류 유동분배에 관한 연구

  • Lee, Jun-Kyoung (Department of Mechanical Engineering, Kyungnam University) ;
  • Jo, Seong-Il (Department of Mechanical Engineering, Kyungnam University)
  • 이준경 (경남대학교 가계자동화공학부) ;
  • 조성일 (경남대학교 가계자동화공학부)
  • Received : 2010.06.16
  • Accepted : 2010.10.28
  • Published : 2011.01.10
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Abstract

The objective of the present study is to investigate the dividing two-phase flow in a horizontal micro T-junction with the same rectangular cross section, $800\;{\mu}m{\times}800\;{\mu}m$, experimentally. Air and water were used as the test fluids. The superficial velocity ranges of air and water were 15~20 m/s and 0.11~0.2 m/s, respectively. Dividing flow characteristics at the micro T-junction are different from those at the larger T-junctions (5~10 mm in hydraulic diameter). Compared with the results of previous works related with the T-junction with mini cross sections (about 5 mm), for lower range of gas separation, the fraction of the liquid separated through the branch decreases for the fixed fraction of the gas separation. But for higher range of gas separation, higher liquid separation could be found.

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References

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