Effect of Smoke Emission System on Fire Temperature Rise in Large Space Structures

薛素铎; 梁劲; 李雄彦

doi:10.13409/j.cnki.jdpme.2010.05.014

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Effect of Smoke Emission System on Fire Temperature Rise in Large Space Structures

更新时间：2025-12-11

- Effect of Smoke Emission System on Fire Temperature Rise in Large Space Structures
- Vol. 30, Issue 5, Pages: 528-532+543(2010)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2010.05.014
  CLC： U998.1;TU834
- Published：2010
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[1]薛素铎,梁劲,李雄彦.排烟方式对大空间建筑火灾空气升温的影响[J].防灾减灾工程学报,2010,30(05):528-532+543.

薛素铎, 梁劲, 李雄彦. Effect of Smoke Emission System on Fire Temperature Rise in Large Space Structures[J]. 2010, 30(5): 528-532+543.
[1]薛素铎,梁劲,李雄彦.排烟方式对大空间建筑火灾空气升温的影响[J].防灾减灾工程学报,2010,30(05):528-532+543. DOI： 10.13409/j.cnki.jdpme.2010.05.014.

薛素铎, 梁劲, 李雄彦. Effect of Smoke Emission System on Fire Temperature Rise in Large Space Structures[J]. 2010, 30(5): 528-532+543. DOI： 10.13409/j.cnki.jdpme.2010.05.014.

摘要

为了考察烟气排放对大空间建筑火灾温度场的影响

利用FDS程序仿真模拟了火灾场景

系统分析了不同排烟系统对温度场的影响。结果表明:烟气排放对温度的影响较大

最大降温幅度可达原最高温度的50%左右;降温幅度与建筑高度有密切联系;当建筑高度小于12m时

按规范设计的自然排烟系统下的火场温度低于机械排烟的火场温度;当建筑高度达到或超过12m时

自然排烟系统下的火场温度将接近或高于机械排烟的火场温度。

Abstract

In order to find out effect of smoke emission on fire temperature field of large space structures

computer simulation was performed by FDS program for fire cases of different smoke emission systems. The results show that the smoke emission can result in large difference for fire temperature field.Maximum drop of temperature could reach 50%of primary highest fire temperature.And the range of temperature reduction is closely linked with the height of building.When the height is under 12 m

the fire temperature with natural smoke emission system is below that with mechanical emission system.However

when the height is over 12 m

the fire temperature with natural smoke emission system will be close to or higher than that with mechanical emission system.

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references

非均匀网格法在场模拟软件FDS中的应用 [J]. 邓玲. 消防科学与技术 . 2007(02)

火灾下大空间结构温度场的数值模拟分析 [J]. 白音,石永久,王元清. 中国安全科学学报 . 2006(01)

实用大空间建筑火灾空气升温经验公式 [J]. 李国强,杜咏. 消防科学与技术 . 2005(03)

高层建筑和地下建筑通风与防排烟[M]. 中国建筑工业出版社 , 张吉光,史自强,崔红社编著, 2005

建筑防火性能化设计[M]. 化学工业出版社 , 李引擎主编, 2005

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