|本期目录/Table of Contents|

[1]雷晶晶,周汝,蒋军成,等.着火房间最优化机械排烟效率理论分析[J].南京工业大学学报(自然科学版),2018,40(04):125-130.[doi:10.3969/j.issn.1671-7627.2018.04.020]
 LEI Jingjing,ZHOU Ru,JIANG Juncheng,et al.Theoretical analysis for the optimization of mechanical smoke exhaust efficiency in a fire compartment[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2018,40(04):125-130.[doi:10.3969/j.issn.1671-7627.2018.04.020]
点击复制

着火房间最优化机械排烟效率理论分析()
分享到:

《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
40
期数:
2018年04期
页码:
125-130
栏目:
出版日期:
2018-07-20

文章信息/Info

Title:
Theoretical analysis for the optimization of mechanical smoke exhaust efficiency in a fire compartment
文章编号:
1671-7627(2018)04-0125-06
作者:
雷晶晶12周汝12蒋军成12诸徳志13何嘉鹏24王妍12
1.南京工业大学 安全科学与工程学院,江苏 南京 211800; 2.南京工业大学 江苏省城市与工业安全重点实验室,江苏 南京 211800; 3.南京市消防局,江苏 南京 210009; 4.南京工业大学 城市建设学院,江苏 南京 211800
Author(s):
LEI Jingjing12ZHOU Ru12JIANG Juncheng12ZHU Dezhi13HE Jiapeng24WANG Yan12
1.College of Safety Science and Engineering,Nanjing Tech University,Nanjing 210009,China; 2.Key Laboratory of Urban and Industrial Safety,Nanjing Tech University,Nanjing 210009,China; 3.Nanjing City Fire Department,Nanjing 210009,China; 4.College of Urban Construction,Nanjing Tech University,Nanjing 210009,China
关键词:
机械排烟 中性面 烟气层高度 双开口
Keywords:
mechanical smoke exhaust neutral plane smoke layer height double opening
分类号:
TU976+.5
DOI:
10.3969/j.issn.1671-7627.2018.04.020
文献标志码:
A
摘要:
为了探究高层建筑着火房间内的机械排烟效率,以南京市某写字楼为模型,建立双开口着火房间最优化机械排烟效率的理论计算模型; 应用火灾动力学(FDS)软件对该建筑室内不同火灾场景的排烟效率进行数值模拟分析。对比理论计算模型及数值模拟研究结果可知:随着火源功率的增加,所需的机械排烟量逐渐增加,随着窗口宽度和门口宽度的增加,所需的机械排烟量逐渐减小; 建立的理论计算模型可用于计算不同房间开口尺寸和火源功率下房间内安全状态时的机械排烟效率。
Abstract:
In order to explore the efficiency of mechanical smoke exhaust in the fire compartment of the high-rise building,based on the model of an office building in Nanjing,the theoretical mathematical model of the optimal mechanical smoke exhaust efficiency was established in a fire compartment with double openings,and the fire dynamics simulator(FDS)software was used to simulate the smoke exhaust efficiency of different fire scenarios in the building.Compared with the theoretical model and numerical simulation results, it was known that with the increase of the fire power,the mechanical smoke exhaust was increased gradually,and with the increase of the window width and door width,the mechanical smoke exhaust was gradually reduced; the theoretical mathematical model could be used to calculate the efficiency of mechanical smoke exhaust in the compartment under different sizes and fire powers when the compartment was in a safe state.

参考文献/References:

[1] BRYANT R A.The application of stereoscopic PIV to measure the flow of air into an enclosure containing a fire[J].Experiments in fluids,2009,47(2):295.
[2] KLOTE J H.A general routine of analyzing of stack effect[R].Gaithersburg:National Institute of Standards and Technology,1991.
[3] 郭子东.地下商业建筑烟气流动与控制的模拟研究[D].西安:西安科技大学,2006.
[4] 孙晓乾.火灾烟气在高层建筑竖向通道内的流动及控制研究[D].合肥:中国科学技术大学,2009.
[5] 刘方,严治军.中庭烟气控制研究现状与展望[J].土木建筑与环境工程,1999,21(6):113.
[6] TAKEDA H.Experimental investigation of fire behavior in a 1/6 scale dual opening compartment[J].Symposium on combustion,1988,21(1):137.
[7] 杨洋.环境风作用下自然排烟口烟气流动研究[D].长沙:中南大学,2011.
[8] KARISSON B,QUINTIERE J G.Enclosure fire dynamics[M].Boca Raton FL:CRC Press,1999.
[9] 毛少华.烟气中性面的理论模型及实验研究[D].合肥:中国科学技术大学,2012.
[10] 毛少华.基于中性面的抑制烟气溢流的临界排烟量模型[J].安全与环境学报,2013,13(1):203.
[11] ZHANG J Y,LU W Z,HUO R,et al.A new model for determining neutral-plane position in shaft space of a building under fire situation[J].Building & environment,2008,43(6):1101.
[12] 许晓元.髙层建筑内竖向通道中性面位置研究[D].合肥:中国科学技术大学,2011.
[13] 中国建筑科学研究院.公共建筑节能设计标准:GB 50189—2005[S].北京:中国建筑工业出版社,2005.
[14] HE Q,EZEKOYE O A,LI C,et al.Ventilation limited extinction of fires in ceiling vented compartments[J].International journal of heat & mass transfer,2015,91:570.
[15] 王晓栋,周汝,何嘉鹏,等.高层建筑着火层中性面变化规律数值模拟研究[J].消防科学与技术,2016(2):174.
[16] 中国消防协会建筑防火专业委员会.现代建筑防火设计技术[M].成都:四川科学技术出版社,1988.

备注/Memo

备注/Memo:
收稿日期:2017-03-07
基金项目:国家自然科学基金青年科学基金(51408306); 江苏省危险化学品本质安全与控制技术重点实验室开放课题(HCSC20130)
作者简介:雷晶晶(1992—),女,河南洛阳人,硕士,主要研究方向为高层建筑防排烟; 周汝(联系人),副教授,E-mail:maxmuse_njtech@163.com; 王妍(联系人),副教授,E-mail:823278424@qq.com.
引用本文:雷晶晶,周汝,蒋军成,等.着火房间最优化机械排烟效率理论分析[J].南京工业大学学报(自然科学版),2018,40(4):125-130..
更新日期/Last Update: 2018-07-30