Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
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Experimental modelling of tunnel smoke flow using a fine-bubble technique

미세수소기포를 이용한 터널내의 연기거동 모사

  • 박원희 (한국철도기술연구원, 환경화재연구팀) ;
  • 장용준 (한국철도기술연구원, 환경화재연구팀) ;
  • 김동현 (한국철도기술연구원, 환경화재연구팀) ;
  • 박승일 (한국철도기술연구원, 환경화재연구팀)
  • Published : 2007.05.17
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Abstract

The free flow of fine bubbles generated by electrolysis and smoke flow in a space enclosed by fire were recently found to show the same tendency thus leading to the introduction of a research technique. The research experimentally models smoke diffusion and flow in parallel and slanted tunnels using the fine hydrogen bubbles generated by electrolysis in a water tank. Visualization laser with wavelength of 532nm and output power of 1000mW is used to visualize effectively the cross section of fine hydrogen bubble flows generated in a model tunnel.

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