A novel evacuation passageway formed by a breathing air supply zone combined with upward ventilation |
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Authors: | Ran Gao Angui Li Wenjun Lei Yujiao Zhao Ying Zhang Baoshun Deng |
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Institution: | 1. School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, PR China;2. China Railway First Survey and Design Institute Group Ltd, Xi’an, Shaanxi 710043, PR China |
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Abstract: | With the development of transportation, the tunnel has become one of the important facilities of railway, highway and subway transportation. However, fire hazards occurring inside the tunnel may incur huge numbers of casualties and property losses. In this paper, a breathing air supply zone combined with an upward ventilation assisted tunnel evacuation system (BTES) is introduced. It can be used to create a safe, smoke-free evacuation passageway out of the tunnel. The BTES is optimized to achieve high-performance. The impacts of heat release rates, fire source locations and fire detection times are also discussed. |
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Keywords: | Tunnel evacuation passageway Fire Smoke Air curtain ventilation |
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