摘要
指出了隧道发生火灾时,影响烟气控制效果的因素很多,如排烟量、排烟口的数量、火源与排烟口的距离等。探讨了在采用ANSYS-CFX软件模拟多种热释放率(HRR)情况下,排烟口位置对火源烟气控制的影响规律。模拟结果表明:临界排烟量随着HRR增加、排烟口中心与火源中心间的距离增大而增大。
Many factors influence the ,smoke--controlling effect as the fire occurs in traffic tunnel, such as the exhausted smoke volume, the number of smoke vents and the distance between fire sources and smoke vent-setc.. This article studies theeffect rules of smoke vent locations on fire smoke control by using ANSYS-CFX to simulate some heat release rate (HRR). The results show that the critical smoke extraction volume increases asHRRrises and the distances between smoke vents and the fire source increase.
出处
《绿色科技》
2013年第3期127-130,共4页
Journal of Green Science and Technology
基金
北京市"供热
供燃气
通风及空调工程"重点实验室开放课题(编号:KF201007)资助
北京建筑工程学院博士启动基金项目(编号:101100702)资助
关键词
隧道火灾
排烟口
CFD模拟
机械排烟
tunnel fire
smoke extraction vents
simulation research
mechanical extraction system