Traditional methods are using FDS and Pathfinder for numerical simulation of fire evacuation and do not consider the impact of fire products on pedestrians, which will lead to erroneous evacuation results. In order to explore the impact of fire products on pedestrian evacuation when a fire occurs in a building, the pedestrian evacuation risk assessment results are closer to the actual situation. By establishing a full-scale model based on the pedestrian evacuation speed coefficient, a numerical simulation of the evacuation of pedestrians under the influence of fire products is carried out, and the influence of spray intensity and smoke exhaust rate on pedestrian evacuation is analysed at the same time. The results show that, compared with traditional methods, the fire evacuation model based on the evacuation speed coefficient can better reflect the evacuation effect of the real fire scene. At the same time, adding spray and smoke exhaust devices can give pedestrians more time to escape.

中文翻译：

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消防产品影响下的行人疏散风险评估

传统的方法是使用FDS和Pathfinder进行火灾疏散的数值模拟，并且没有考虑火灾对行人的影响，这将导致错误的疏散结果。为了探讨建筑物发生火灾时消防产品对人员疏散的影响，人员疏散风险评估结果更接近实际情况。通过建立基于行人疏散速度系数的全尺寸模型，对火源影响下的行人疏散进行了数值模拟，并分析了喷雾强度和排烟量对行人疏散的影响。同时。结果表明，与传统方法相比，基于疏散速度系数的疏散模型可以较好地反映真实火灾场景的疏散效果。同时，增加喷雾和排烟装置可使行人有更多的时间逃生。