Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
권호 표지

A Numerical Study of Ventilation System Operation for Smoke Control in a Subway Station when a Train under Fire is Approaching

화재열차가 진입하여 정차하는 지하철 역사에서 제연을 위한 환기장치 운전에 대한 수치해석 연구

  • Lee, Seung-Ho (Graduate school, Department of Mechanical Engineering, Sogang University) ;
  • Hur, Nahm-Keon (Department of Mechanical Engineering, Sogang University) ;
  • Cha, Chul-Hyun (Daesang Engineering Co., Ltd.) ;
  • Ryou, Hong-Sun (Department of Mechanical Engineering, Chung-Ang University) ;
  • Kim, Dong-Hyeon (Track & Civil Engineering Research Department, Korea Railroad Research Institute) ;
  • Jang, Yong-Jun (Track & Civil Engineering Research Department, Korea Railroad Research Institute)
  • Published : 2009.06.25
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Abstract

The platform screen door(PSD) is installed in the station of the Seoul Metro 9th line for passengers' safety and comfortable environment of the station. The track way exhaust system(TES) is also operated with PSD to exhaust heat released from train. TES can also be used for the purpose of the heat and smoke control in an emergency case of the carriage fire. When the fire is occurred, operation of TES is switched to the smoke exhaust mode form its normal ventilation mode. In the present study, a subway station of Seoul Metro 9th line is modeled, and a 3-D CFD simulation is performed to investigate effectiveness of designed TES in case of fire. A scenario that a train under fire is arriving the station is simulated for several possible operation modes of the TES using moving mesh technique. As a result, temperature and CO concentration distribution in the station is obtained for each operation modes of TES. The effectiveness of TES operation in case of fire is also discussed.

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