The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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The Study on the Bi-directional Ejection Air Curtain System for Blocking Smoke Diffusion in case of Tunnel Fire

터널 화재시 연기확산 차단을 위한 양방향 토출 에어커튼 시스템에 대한 연구

  • Yang, Sang-Ho (Graduate School of Knowledge-based Technology and Energy, Korea Polytechnic University, Samwon E & B Co., Ltd.) ;
  • Choi, Young-Seok (Korea Institute of Industrial Technology, KITECH) ;
  • Kim, Jung-Yup (Korea Institute of Civil Engineering and Building Technology, KICT) ;
  • Kim, Nam-Goo (Korea Expressway Corporation) ;
  • Kim, Kyung-Yup (Dep't of Mechanical Engineering, Korea Polytechnic University)
  • 양상호 (한국산업기술대학교 지식기반기술.에너지대학원, (주)삼원이앤비 기술연구소) ;
  • 최영석 (한국생산기술연구원 열유체시스템연구실) ;
  • 김정엽 (한국건설기술연구원 화재안전연구센터) ;
  • 김남구 (한국도로공사) ;
  • 김경엽 (한국산업기술대학교 기계공학과)
  • Received : 2014.08.28
  • Accepted : 2014.09.17
  • Published : 2014.10.01
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Abstract

This paper presents a the study on air curtain system of top and bottom bi-directional jet air discharge for blocking the spread of smoke in case of tunnel fire. The five kinds different air curtains of A, B, C, D, and E of models for various performance tested after manufactured. A results of the various performance test obtained the best efficiency from E model air curtain. And optimize the injection angle of the air curtain nozzle through the three-dimensional computational fluid dynamics (CFD) analysis and analyzed the effects of external pressure of tunnel. and also single factor design have been applied. At present, our attention is focused on the velocity distribution(flow width and flow position) of 1.5m on the ground in tunnel. Also, analyzed the influence of draft in the tunnel. Detailed effects of discharge angle of air curtain and velocity at nozzle exit are discussed.

Keywords

References

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