Ezperimental Study on the Effect of Large Space Buildings Smoke
For large space, large-scale construction of new modem design of the smoke can not meet the specification requirements, in a typical full-size big warehouse space, carry out a comparison of smokefree and natural draft experiment combined with experimental data analysis the large warehouse-type spaces effect of flue gas flow and natural draft. The experimental results show that: comparing with natural draft and nonsmoke, temperature, flue gas velocity spread have declined, for example, the average of flue gas temperature decreased from 90 ℃ to 47 ℃, the average rate of smoke spread from 0.39 m/s reduced to 0.31 m/s, the environment improved. Conclusions are as follows: For large space construction, the main harmful of flue gas is toxic and reducing rate of optical rather than high temperature, when the fire source is larger, the temperature difference between inside and outside is large, no wind influence, natural draft is a very effective way. However, natural smoke is more susceptible to outside influence, it is necessary to give full consideration to the outdoor environment.
firefighting large space building natural draft ezperimental study
WU Weihua ZHU Guoqing JIA Jingrui YIN Lei TANG Yanfei
Faculty of Safety Engineering,CUMT,jiangsu,xuzhou,221008
国际会议
2009 International Symposium on Fire Science and Fire-Protection Engineering(2009火灾科学与消防工程国际学术会议)
北京
英文
237-243
2009-10-17（万方平台首次上网日期，不代表论文的发表时间）