住宅火灾房门开启对火灾蔓延的影响

通过对典型住宅建筑火灾进行数值模拟和全尺寸实验，研究客厅起火时火灾发展趋势和不同门窗开启状况下卧室内的温度、能见度、CO体积分数，分析其对人员逃生的影响。结果表明，烟气的蔓延和聚集是危害人员安全的重要因素，客厅起火时，扑救火灾的最佳时间为起火后680 s内。关闭卧室门、开启卧室窗最多可以增加497 s的应急响应时间。

Research on the influence of door opening situation on fire spread in residential fires

Through the numerical simulation and full-scale experiment of typical residential building fires,the fire development trend in the living room and the temperature,visibility and CO concentration distribution in the bedroom under different opening conditions of the doors and the windows were studied,and the impact on the escape of personnel was analyzed.The results show that the spread and accumulation of smoke is an important factor that jeopardizes the safety of personnels.When the living room is on fire,saving the fire within 680 s is the best choise.In addition,closing the bedroom door and opening the bedroom window can increase 497 s of the emergency response time.