Influence of opening ratios and directions of windows on natural smoke exhaust effect in atrium buildings

作     者：Peng Wang Xiankun Wang Keheng Chen Hongyu Wei Qianhang Feng Yuanyi Xie Xuechao He Yanqiu Chen Peng Wang;Xiankun Wang;Keheng Chen;Hongyu Wei;Qianhang Feng;Yuanyi Xie;Xuechao He;Yanqiu Chen

作者机构：Department of Fire Protection EngineeringSouthwest Jiaotong UniversityChengduSichuan 610031China Sichuan Fire Research Institute of MEMChina 

出 版 物：《Building Simulation》 (建筑模拟（英文）)

年 卷 期：2022年第15卷第4期

页      面：571-582页

核心收录：

学科分类：08[工学] 082303[工学-交通运输规划与管理] 082302[工学-交通信息工程及控制] 0823[工学-交通运输工程] 

基　　金：This work was supported by SCFRI research project(No.T2019881101 No.T2019880402) 

主　　题：natural smoke exhaust atrium opening ratio opening direction 

摘      要：In this paper,the influence of different opening ratios and different opening directions of the windows on the natural smoke exhaust was studied through a series of real fire experiments and simulation *** the open area of the window could effectively improve the overall smoke exhaust *** the top windows were open and the opening ratio increased from 19.2%to 24.3%,the optical density was decreased by 12.4%.The average smoke exhaust rate per unit area of the window did not change *** the area of the natural smoke exhaust window could effectively increase the smoke exhaust rate and improve the overall effect of smoke *** the top windows were open,the temperature rise on the top floor was 30.8%-47.5%lower while the visibility was 16.8%-21.9%higher than that when the side windows were open.