Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Air-water two-phase distribution in an aluminum parallel flow heat exchanger header having different inlet orientations

유입 방향에 따른 알루미늄 평행류 열교환기 헤더내 공기-물 2 상류 분지 실험

  • 김내현 (인천대학교 기계공학과) ;
  • 함정호 (인천대학교 기계공학과 대학원) ;
  • 박태균 (인천대학교 기계공학과 대학원) ;
  • 김도영 (인천대학교 기계공학과 대학원)
  • Published : 2007.05.30
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Abstract

The air and water flow distribution are experimentally studied for a round header-ten microchannel tube configuration. Three different inlet orientations (parallel, side, normal) were investigated. Tests were conducted with downward flow configuration for the mass flux from 70 to 130 kg/$m^2s$, quality from 0.2 to 0.6, non-dimensional protrusion depth (h/D) from 0.0 to 0.5. It is shown that, for almost all the test conditions, normal inlet yielded the best flow distribution, followed by side and parallel inlet. Possible reasoning is provided using flow visualization results.

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