摘要
利用FDS模拟走廊中设置垂向射流与挡烟垂壁组合方式对高层建筑火灾烟气控制效果的影响。比较几种火灾模式下烟气的温度、浓度分布。结果表明,采用垂向射流与机械排烟结合的烟气控制模式比单纯机械排烟的效果明显提高;前室部分加压并在前室门前2 m处设置垂向射流,同时在垂向射流和机械排烟口之间布置挡烟垂壁的组合控制模式具有最佳的烟气控制效果。
FDS were used to analyze the smoke control effect of vertical air jet and hang wall combined control models.Smoke temperature and the concentration distribution in several fire scenarios were compared.The results showed that smoke control model combing vertical air jet and mechanical smoke extraction can improve the smoke extraction effect;the model that is with pressurization in atria and vertical air jet 2 m in front of the atria door,and set one hang wall between vertical air jet and exhaust port has the best smoke control effect.
出处
《消防科学与技术》
CAS
北大核心
2011年第7期574-576,共3页
Fire Science and Technology
基金
江苏省自然科学基金资助项目(BK2008369)
关键词
高层建筑
垂向射流
挡烟垂壁
烟气控制
数值模拟
high-rise building
vertical air jet
hang wall
smoke control
numerical simulation
