Calculation of CO Behavior in the Platform for Deeply Underground Subway Station with Different Fire Strengths
Calculation of CO Behavior in the Platform for Deeply Underground Subway Station with Different Fire Strengths
摘要
Effect of different fire strengths on the smoke distribution in the subway station is investigated. Shin-Gum-Ho station （line #5） in Seoui is selected as a case study for variation of CO （carbon monoxide） distribution caused by the fire in the platform. The ventilation in the station is set to be an air supply mod in the lobby and an air exhaustion mod in the platform. One-side main tunnel ventilation （7,000 m3/min） is applied to operate in the tunnel. The fire is assumed to break out in the middle of train parked in the platform tunnel. Two kinds of fire strength are used. One is 10 MW and the other is 20 MW. Ventilation diffusers in the station are modeled as 317 square shapes ＆ four rectangular shapes in the lobby and platform. The total of 7.5 million grids is generated and whole domain is divided to 22 blocks for parallel computation. Large eddy simulation method is applied to solve the momentum equation. The behavior of CO is calculated according to different fire strengths and compared with each other.
二级参考文献11
-
1Hwang, C. C., and Edwards, J. C. 2005. "The Critical Ventilation Velocity in Tunnel Fires-A Computer Simulation." Fire Safety Journal 40 (3): 213-44.
-
2Hwang, C. C., and Wargo, J. D. 1986. "Experimental Study of Thermally Generated Reverse Stratified Layers in a Fire Tunnel." Combustion andFlame 66 (2): 171-80.
-
3Woodburn, P. J., and Britter, R. E. 1996. "CFD Simulations of a Tunnel Fire-Part 1." Fire Safety Journal 26 (1): 35-62.
-
4Woodburn, P. J., and Britter, R. E. 1996. "CFD Simulations of a Tunnel Fire-Part II." Fire Safety Journal 26 (1): 63-90.
-
5Jang, Y. J., Kim, H. B., Kim J. H., and Han, H. Y. 2009. "Comparative Study on the Numerical Simulation for the Bake-Layer of the Tunnel Fire-Driven Flow with LES and RANS." Transactions of the KSME (B) 33 (3): 156-63.
-
6Fletcher, D. F., Kent, J. H., and Apte, V. B. 1994. "Numerical Simulations of Smoke Movement from a Pool Fire in a Ventilated Tunnel." Fire Safety Journal 23 (3): 305-25.
-
7Gao, P. Z., Liu, S. L., Chow W. K., and Fong, N. K. 2004. "Large Eddy Simulation for Studying Tunnel Smoke Ventilation." Tunneling and Underground Space Technology 19 (6): 577-86.
-
8Jang, Y. J., Kim, H. B., and Lee, C. H. 2009. "The Numerical Simulation of Fire Driven Smoke and Heat Flow in the Deeply Underground Subway Station Using a Linux Clustering Computer." In Proceedings of the KSME (Korean Society of Mechanical Engineering) Spring Annual Meeting KSME 09TE063, 465-71.
-
9Jang, Y. J., Lee, H. S., and Park, D. S. 2012. "Experimental Study for the Capacity of Ordinary and Emergency Ventilation System in Deeply Underground Subway Station." Journal of the Korean Society for Railway 15 (6): 579-87.
-
10McGrattan, K., MeDermontt, R., Hostikka, S., and Floyd, J. 2010. Fire Dynamics Simulator (Vet. 5) User's Guide. Gaithersburg: NIST (National Institute of Standards and Technology).
-
1周世朗.东南亚的隧道通风猪舍[J].畜禽业,1998(5):50-51.
-
2赵相相,周孝清,张燕,郑志敏.地铁隧道火灾烟气特性与临界风速的数值模拟分析[J].暖通空调,2005,35(12):68-72. 被引量：8
-
3朱前勇.分析板栗高产的栽培技术[J].大科技（科技天地）,2011(18):35-35.
-
4潘艳艳.不同林分下栽植南方红豆杉生长效果分析[J].河北林业科技,2016(4):27-29. 被引量：2
-
5侯龙飞,李铭,崔武远,莫横.风速对高层建筑火灾时环境中烟气分布的影响[J].中国安全生产科学技术,2011,7(8):53-59. 被引量：9
-
6魏星,翟尚鹏,刘静,曾艳,张鹏.多台活性焦脱硫塔烟气分布的数值模拟研究[J].华电技术,2011,33(4):59-62. 被引量：5
-
7水库对环境的影响[J].农电管理,1997,0(6):44-44. 被引量：1
-
8烧结烟气钙法脱硫技术[J].冶金设备,2015(2):78-78.
-
9陈湘华.加盖室外步行街消防安全性分析[J].消防科学与技术,2015,34(9):1180-1182. 被引量：2
-
10FU Cai LI Min ZHANG Yunhe ZOU Deqing HAN Lansheng.A Hierarchical Virus Immunization Method for Community Networks[J].China Communications,2014,11(9):148-159. 被引量：1
