航站楼自然排烟系统设计及有效性

Design and the effectiveness of natural smoke exhaust system in airport terminals

分析机场航站楼空间特点及火灾烟气流动特性,分析机械排烟方式的问题以及采取自然排烟方式的必要性。建立自然排烟理论计算模型,论述自然排烟设计的基本原则和控制指标,研究自然排烟设计方案的有效性。基于理论计算验证了自然排烟的可行性,航站楼最小清晰高度上方空间蓄烟能力较强,人员疏散环境良好。利用火灾动力学软件模拟分析了设计火灾场景下火灾烟气流动和人员疏散,分析表明自然排烟效果较好。

Space structure and smoke spread under fire in airport terminals were analyzed, and problems and necessity of using natu ral smoke exhaust syslem in airport terminal were analyzed too.A theoretical calculation model of natural smoke exhaust was estab lished. Principles, control indexes and the effectiveness of natural smoke exhaust were discussed to research the effectiveness of natural smoke exhaust plan. The feasibility of the design of natural smoke exhaust was proved by using theoretical calculation method. The smoke capacity of the space above the clear height was proved to be very good. and the evacuation environment for people was suitable. The smoke flow and the evacuation were analyzed hy fire dynamics analysis software. The results showed thal the natural smoke exhaust is effective.