Tunnel and Underground Space (터널과지하공간)

Korean Society for Rock Mechanics and Rock Engineering (한국암반공학회)
권호 표지

An Experimental Study of Smoke Control in Tunnel Fires with Jet Fan

터널화재시 제트팬에 의한 연기제어에 관한 실험적 연구

  • 이성룡 (중앙대학교 기계공학부 대학원) ;
  • 김충익 (중앙대학교 기계공학부) ;
  • 유홍선 (중앙대학교 기계공학부) ;
  • 방기영 (삼성애버랜드 기술개발연구소 소장)
  • Published : 2002.06.01
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Abstract

In this study reduced-scale experiments were conducted to analyze smoke movement in tunnel fire with jet fan, The 1/20 scale experiments were carried out under the froude scaling using gasoline pool fire range from 6.6 to 12.5 cm in diameter with total heat release rate from 0.714 to 4.77 kW. In the case of fires under the 2.5kW, backlaying was reduced about 40cm and smoke was effectively controled in downstream of the fan when operating the fan. The smoke layer was moved down and the ceiling temperature was decreased compared to that of without fan case in upstream of the fan, but the temperature in the lower part of the tunnel was increased.

본 연구에서는 제트팬이 설치된 터널에서 화재발생시 연기의 거동을 해석하기 위하여 축소실험을 실시하였다. Froude 상사를 사용하여 1/20로 축소된 모형터널에서 실험을 실시하였으며 가연물질로는 휘발유를 사용하였다. 지름이 6.6∼ 12.5 cm의 화원을 사용하였으며 발열량은 7.714∼4.77 kW이다. 2.5 kW이하의 화재시 팬을 가동함으로 인하여 역기류가 팬 상류 약 40cm 이상 감소하였으며 팬 하류에서는 효과적으로 연기를 제어하였다. 팬 상류에서는 팬을 가동하지 않은 경우에 비해 연층은 하강하고 온도는 감소하였으나 터널 하부에서는 온도가 증가하였다.

Keywords

References

  1. 2nd International Conference on Safety in Road and Rail Tunnels,Granada,Spain Smoke and Temperature Development in Tunnels Experimental Results of Full Scale Fire Test E. Richter
  2. Memorial Tunnel Fire Ventilation Test Program Report ,USA
  3. Smoke Control in Sloping Tunnels,Fire Safety Journal v.27 Yasushi Oka;Graham T.Atkinson
  4. Smoke Control in Sloping Tunnels,Fire Safety Journal v.27 G.T.Atkinson;Y.Wu https://doi.org/10.1016/S0379-7112(96)00061-6
  5. Control of Smoke flow in tunnel fires using longitudinal ventilation systems - a study of the critical velocity,fire Safety Journal v.35 Y.Wu;M.Z.A.Bakar,
  6. CFD Simulations of a Tunnel Fires,Fire Safety Journal v.26 P.J.Woodburn;R.E.Britter
  7. CFD Simulations of a Tunnel Fire ,Fire Safety Journal v.26 P.J.Woodbum;R.E.Britter
  8. Simulation of Tunnel Fires Using a zone model,Tunneling and Underground Space Technology v.11 no.2 W.K.Chow
  9. Tunneling and Underground Space Technology v.13 no.3 On Smoke Control for Tunnels by Longitudinal Ventilation W.K.Chow https://doi.org/10.1016/S0886-7798(98)00061-3
  10. 한국화재 소방학회지 v.14 no.2 터널내에서 화재 발생시 연기 거동에 대한 연구 김상훈;김성찬;김충익;유홍선
  11. 한국화재 소방학회지 v.15 no.1 터널화재시 자연 배기에 의한 연기 거동에 관한 실험적 연구 이성룡;김충익;유홍선
  12. 설비공학논문집 v.14 no.3 터널화재시 자연환기에 의한 연기거동에 관한 실험적 연구 이성룡;박현태;김충익;유홍선
  13. The SFPE Handbook of Fire Protection Engineering,U.S.A V.Badrauskas
  14. Fire Safety Journal v.34 no.4 A model to evaluate tunnel fire characteristics O.Megret,;O.Vauquelin https://doi.org/10.1016/S0379-7112(00)00010-2
  15. Fire Safety Journal v.15 no.1 Scaling Applications in fire Research J.G.Quintiere https://doi.org/10.1016/0379-7112(89)90045-3
  16. Journal of Heat Transfer v.104 An Experimental Study of Upper Hot Layer Stratification in Full-Scale Multiroom Fire Scenarios L.Y.Cooper,M.Hakleroad,J.Quintiere,W.Rinkinen https://doi.org/10.1115/1.3245194