Death toll by smoke in fire is estimated at 70% which emphasizes the importance of smoke control system to deal with the fire smoke. In advanced countries, the studies on method to prevent smoke spread by forming the air curtain using high velocity jet flow are underway now. In this study, a linear-jet type air curtain system is proposed to prevent the smoke spread and analysis of flow characteristics of pressure chamber, which is the core component, is conducted through numerical analysis and experimental approach. Consequently, the pressure was increased in 2D functional way to input air flowrate and about 595 Pa pressure was formed at pressure chamber inlet in response to 30 m/s nozzle jet velocity.
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https://doi.org/10.2190/HH1R-Y47H-TUD1-KB5A
[3]
Hu, L.H., Zhou, R., Huo, R., Peng, W. and Wang, H.B. (2008) Confinement of Fire-Induced Smoke and Carbon Monoxide Transportation by Air Curtain in Channel. Journal of Hazardous Materials, 156, 327-334.
https://doi.org/10.1016/j.jhazmat.2007.12.041
[4]
Luo, N., Li, A., Gau, R., Zhang, W. and Tian, Z. (2013) An Experiment and Simulation of Smoke Confinement Utilizing an Air Curtain. Safety Science, 59, 10-18.
https://doi.org/10.1016/j.ssci.2013.04.009
[5]
Gao, R., Li, A., Lei, W., Zhau, Y., Zhang, Y. and Deng, B. (2012) Study of a Proposed Tunnel Evacuation Passageway Formed by Opposite-Double Air Curtain Ventilation. Safety Science, 50, 1549-1557. https://doi.org/10.1016/j.ssci.2012.03.007
[6]
Kweon, O.S. and Chae, S.U. (2014) A Numerical Analysis for the Fire and Smoke Spread Study in the Small Compartment Space. Journal of Korean Society of Hazard Mitigation, 14, 213-218. https://doi.org/10.9798/KOSHAM.2014.14.5.213
[7]
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https://users.encs.concordia.ca/home/m/m_mamu/ANSYS%20CFX%20documentation/cfx_thry.pdf
