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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Ventilation Performance According to Outdoor and Operating Conditions of the Vertical Exhaust Duct System in High Riser Public Houses

초고층 공동주택의 입상덕트 환기시스템에서 외기조건과 작동조건에 따른 환기성능평가

  • Kim, Young-Bae (Graduate School of Energy & Environment, Seoul National University of Science and Technology) ;
  • Kim, Jae-Hong (Department of Mechanical Engineering, Seoul National University of Science and Technology) ;
  • Sung, Jae-Yong (Department of Mechanical Engineering, Seoul National University of Science and Technology) ;
  • Lee, Myeong-Ho (Department of Mechanical Engineering, Seoul National University of Science and Technology)
  • 김영배 (서울과학기술대학교 에너지환경대학원) ;
  • 김재홍 (서울과학기술대학교 기계공학과) ;
  • 성재용 (서울과학기술대학교 기계공학과) ;
  • 이명호 (서울과학기술대학교 기계공학과)
  • Received : 2009.10.31
  • Accepted : 2011.01.03
  • Published : 2011.02.10
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Abstract

The ventilation performance of a vertical exhaust duct system in the high riser public house has been evaluated by a commercial software, Fluid Flow, which solves pressure losses through the duct system including bathroom fans and a hybrid roof fan. During the numerical simulations, outdoor wind condition and stack effects in summer and winter were considered as well as the operating conditions of a basement damper and the roof fan. The results show that the bathroom ventilation in summer is the most unsatisfactory. The opening of the basement damper has a problem that the polluted air in the lower floors is exhausted to the underground parking lot, not to the rooftop. If the basement damper is closed, the exhaust flow rate in the lower floors is not sufficient due to the strong flow resistance in the long vertical duct even though the roof fan is under operating.

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References

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