|本期目录/Table of Contents|

[1]谢云飞,朱国庆,张磊,等.外墙保温材料数值模拟研究[J].中国安全生产科学技术,2012,8(3):28.
　XIE Yun fei,ZHU Guo qing,ZHANG Lei,et al.Study on numerical simulation of the vertical combustion characters for external wall thermal insulation materials[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2012,8(3):28.
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外墙保温材料数值模拟研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
8
期数:
2012年3期
页码:
28
栏目:
学术论著
出版日期:
2012-03-31

文章信息/Info

Title:
Study on numerical simulation of the vertical combustion characters for external wall thermal insulation materials
作者:
谢云飞; 朱国庆; 张磊; 王金争
（1 中国矿业大学安全工程学院，徐州 221008）（2 罗尔夫杰森消防技术咨询（上海）有限公司，上海 200120）
Author(s):
XIE Yunfei;  ZHU Guoqing;  ZHANG Lei;  WANG Jinzheng
(1 Faculty of Safety Engineering, China University of Mining Technology, Xuzhou 221008, China)(2 RJA Fire Protection Technology Consulting (Shanghai) Company Limited, Shanghai 200120, China)
关键词:
外墙保温材料; 竖向燃烧; 数值模拟
Keywords:
external wall thermal insulation material;  vertical combustion;  numerical simulation
分类号:
X928.7
DOI:
-
文献标志码:
-
摘要:
根据外墙保温材料具体的工程参数为依据，对挤塑型聚苯乙烯（XPS）、膨胀型聚苯乙烯（EPS）和聚氨酯（PU）三种材料的燃烧参数进行设定，设定火源为从窗口喷射而出的火焰，运用FDS软件进行数值模拟与分析。经过模拟发现：外墙保温材料在竖向燃烧中，火焰前锋高度呈现抛物线式增长，y=at2+bt+c，前期增长迅速，后期逐渐平稳。火焰前锋速度按照线性变化，vp=αt+β。在整个燃烧过程中，火焰前锋速度平稳的降低。XPS板导热系数最好，各测点的温度上升最慢，EPS板蓄热系数最好，所以其温度曲线最为平稳。
Abstract:
FDS (Fire Dynamics Simulator) was applied to simulate the vertical combustion of external wall thermal insulation material in this article. Firstly the parameters of EPS, XPS and PU were designated according to engineering preference and the fire source was provided by the window fire. After the simulating, those data were sorted. It was found that the height of flame changed in the form of nonlinear change: y = at2 + bt + c. The shape of trend line was a parabolic. The height of flame changed quickly in the earlier stage of simulating wih the later stage changing slowly. The velocity of flame front changed in the form of linear change：νp = αt +β. The velocity of flame front reduced stably in the simulating. XPS had the best thermal conductivity, so the temperature in each test point rised the most slowly. The EPS’ temperature variation curve was the most stable in all with the best coefficient of thermal storage. Tthe conclusion can provide certain prediction for the vertical combustion of actual external wall insulation material on the constructions and improve the efficiency of fire fighting and rescue for the fire department.

参考文献/References:

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相似文献/References:

[1]张威,朱国庆,张磊,等.三种常用外墙可燃保温材料竖向燃烧特性数值模拟研究[J].中国安全生产科学技术,2012,8(1):11.
　ZHANG Wei,ZHU Guo-qing,ZHANG Lei.Numerical investigation of the vertical combustion characters of three common external wall thermal insulation materials[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2012,8(3):11.
[2]胡超,朱国庆,张磊.外墙保温材料在火灾中的燃烧现象小尺寸实验研究[J].中国安全生产科学技术,2012,8(2):10.
　HU Chao,ZHU Guo qing,ZHANG Lei.Experimental study on combustion phenomena of external wall thermal insulation material in the fire[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2012,8(3):10.

备注/Memo

备注/Memo:
住房和城乡建设部科学技术项目(编号：2011K153)
更新日期/Last Update: 2012-04-27