International Journal of Safety

The Korean Society of Safety (한국안전학회)
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Comparison of Two Different Smoke Extraction Schemes of Transversely Ventilated Tunnel Fire

  • Rie, Dong-Ho (Department of Safety Engineering, University of Incheon) ;
  • Kim, Hyung-Taek (Department of Advanced Materials Engineering, University of Incheon) ;
  • Yoo, Ji-Oh (Department of Building Mechanical Engineering, Shinheong College) ;
  • Shin, Hyun-Jun (Department of Fire & Engineering Services Research, Korea Institute of Construction Technology) ;
  • Yoon, Sung-Wook (GS Engineering & Construction, Research & Development Team)
  • Published : 2005.12.31
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Abstract

In case of tunnel fire, one of the most effective facilities to save lives is the smoke control system. In this study, two different smoke extraction schemes of transversely ventilated tunnel were compared. One is the smoke extraction using the fixed exhaust ports on the false ceiling to achieve the uniform and distributed smoke extraction (uniform exhaust). The other is that using the remote controlled smoke extraction where only vents close to the fire is opened whereas the others are closed to enhance the limitation of the smoke spread (localized exhaust). A number of numerical simulations were performed to find out the optimal smoke extraction rate at each smoke extraction scheme to allow the tunnel users to escape to the safe area without endangering their lives by smoke.

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References

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