Abstract
3D physical model of a supermarket was constructed with Pyrosim software, and the fire scene was set according to the actual situation. The fire development process and personnel evacuation process were simulated with FDS. The fire danger time of the fire scene was analyzed according to the smoke temperature and visibility of different time. The personnel evacuation process to the supermarket was simulated with the evacuation software Evac, and the required safety egress time was calculated. By comparing the fire danger time and the required safety egress time, the conclusion was drawn that the supermarket can not meet the requirement for safety evacuation. After changing the conditions for safety evacuation, the required safety egress time was simulated again. And the simulation results showed that the changed evaluation conditions can meet the requirement for safety evacuation. The study results provide a basis to improve the safety evacuation conditions of the supermarket.
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