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

  • 제16권10호
  • /
  • Pages.977-983
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  • 2004
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  • 1229-6422(pISSN)
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  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

오프셋 스트립 휜이 있는 협소 사각유로의 비등열전달

Boiling Heat Transfer in a Narrow Rectangular Channel with Offset Strip Fins

  • 김병주 (홍익대학교 기계/시스템디자인공학과) ;
  • 정은수 (홍익대학교 기계/시스템디자인공학과) ;
  • 손병후 (한국건설기술연구원)
  • Kim Byong Joo (Department of Mechanical and System Design Engineering, Hongik University) ;
  • Jeong Eun Soo (Department of Mechanical and System Design Engineering, Hongik University) ;
  • Sohn Byong Hu (Korea Institute of Construction Technology)
  • 발행 : 2004.10.01
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초록

An experimental study on saturated flow boiling heat transfer of R113 was peformed in a vertical narrow rectangular channel with offset strip fins. Two-phase pressure gradients and boiling heat transfer coefficients in an electrically heated test section were measured in the range of quality $0{\sim}0.6$, mass flux $17{\sim}43kg/m^{2}s$, and heat flux of $500{\sim}3,000W/m^2$ Two-phase friction multipliers were determined as a function of Lockhart-Martinelli parameter. Local boiling heat transfer coefficients were analysed in terms of mass flux, heat flux and local vapor quality. Correlation for boiling heat transfer coefficients was proposed, which was in good agreement with experimental data.

키워드

참고문헌

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