|本期目录/Table of Contents|

[1]张威,何嘉鹏,李静娴,等.长廊型建筑前室缓冲区对排烟效果的影响[J].中国安全生产科学技术,2011,7(1):38-42.
 ZHANG Wei,HE Jia-peng,LI Jing-xian,et al.Influences of smoke exhaust effect by setting atria buffer zone in straight corridor of building[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2011,7(1):38-42.
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长廊型建筑前室缓冲区对排烟效果的影响()
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
7
期数:
2011年1
页码:
38-42
栏目:
学术论著
出版日期:
2011-01-30

文章信息/Info

Title:
Influences of smoke exhaust effect by setting atria buffer zone in straight corridor of building
文章编号:
1673-193X(2011)-03-0038-05
作者:
张威何嘉鹏李静娴许小磊
南京工业大学城市建设与安全工程学院; 江苏省城市与工业安全重点实验室
Author(s):
ZHANG Wei12HE Jia-peng12LI Jing-xian12XU Xiao-lei12
1.School of Urban Construction and Safety Engineering,Nanjing University of Technology2.Jiangsu Key Laboratory of Urban and Industrial Safety
关键词:
条形走廊 排烟 缓冲区 模拟
Keywords:
straight corridorsmoke exhaustbuffer zonesimulation
分类号:
X924.4;TU972
DOI:
-
文献标志码:
A
摘要:
高层建筑发生火灾时,采用加压防烟将会有大量的新鲜空气被送入着火层。这些新鲜空气稀释了烟气,从而降低了机械排烟效率。提出了高层建筑条形走廊前室缓冲区的设想,并通过高层建筑内烟气流动的数学模型,采用双方程三维紊流模型,对相同排烟量情况下前室缓冲区对排烟效果的影响进行了模拟计算和对比分析。结果表明:对条形走廊,前室缓冲区能够提高机械排烟效率近3.6%,同时在前室门附近走廊内形成一段相对安全的区域,有利于人员逃离着火层。
Abstract:
In high-rise building fires,a great deal of fresh air will be sent into the floor when pressurization is taken.Smoke is diluted by the fresh air,and the efficiency of mechanical smoke exhaust is reduced.The assumption of setting atria buffer zone in straight corridor of high-rise building was put forward ,and mathematic model of smoke flow in high-rise building and three-dimension turbulence model with two equations were used to simulate the influences of smoke exhaust effect by setting atria buffer zone,in straight corridor of high-rise building.The results showed that,for straight corridor,by setting zone the efficiency of mechanical smoke exhaust was about 3.6% higher than which atria buffer zone is not set,and smokeless zone would formed in the corridor nearby atria,and it is helpful to escape from fire floor for people.

参考文献/References:

[1] 李静娴,何嘉鹏,周汝. 长廊型高层建筑火灾烟气控制模式的效果比较[J]. 消防科学与技术. 2010(01) [2] 靖成银,何嘉鹏,周汝. 自然通风下横向走道防排烟方式和排烟口位置对烟气状态的影响模拟[J]. 中国安全科学学报. 2007(11) [3] 周汝,何嘉鹏,蒋军成. 地铁站火灾烟气扩散控制模式的数值模拟[J]. 暖通空调. 2007(09) [4] 周汝,何嘉鹏,蒋军成,缪伟,姜正良. 高层建筑火灾时烟气在横向疏散通道内的扩散[J]. 南京航空航天大学学报. 2007(03)

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备注/Memo

备注/Memo:
收稿日期:2010-10-18
基金项目:江苏省自然科学基金项目(编号:BK2008369)
更新日期/Last Update: