Numerical Simulation Research on Hybrid Smoke Extraction Model for Underground Rail Transit Depot

摘要：

　　This research is based on a underground rail transit depot in Nanjing.FDS software was used to design relative models based on the real construction.There are 3 kinds of models include natural smoke exhausting model, mechanical smoke exhausting model and hybrid smoke exhausting model.According to the real fire accidents, 8MW, 12MW, 16MW and 20MW four fire powers were set.Firstly, the security of hybrid smoke exhausting model was researched, and major contrast to the following factors: ceiling temperature;air velocity distribution at the bottom;sandwich roof air velocity distribution;construction within the overall distribution of flue gas and smoke layer height changes.By comparing these factors, combined with the efficiency of the model under different fire power, a comprehensive analysis of the security of the hybrid smoke exhausting model was conducted.A further study about the comparison among the 3 type of smoke exhausting model has been completed.

关键词： underground building hybrid smoke exhausting model natural smoke exhausting model mechanical smoke exhausting model simulation research

作者: WANG Zhilei PAN Xuhai YANG Juan HUA Min

作者单位: Jiangsu Key Laboratory of Urban and Industrial Safety, Nanjing 210009, Jiangsu, China Institute of Fire Science and Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, China

会议类型: 国际会议

会议名称: The 2016 International Symposium on Safety Science and Technology(2016安全科学与技术国际会议)

会议地点: 昆明

会议语种:英文

页码: 339-341

在线出版日期: 2016-10-17（万方平台首次上网日期，不代表论文的发表时间）