Fire Simulation and Emergency evacuation simulation of college student apartment

Abstract The relative concentration of personnel in student apartments in colleges and frequent safety incidents have seriously affected the lives and property safety of students.Therefore, it is of great significance to study the fire in college apartments and its emergency evacuation.Based on the size and volume of No. 4 student dormitory building in the North Campus of Liaoning Technical University,this study use Pyrosim software to carry out fire numerical simulation. The variation rules of smoke visibility, CO concentration, and ambient temperature in the college student apartment building were analyzed and the available safe evacuation time was determined. Moreover, the Pathfinder software was used to carry out emergency evacuation simulation with the combination of physical signs, evacuation speed and personnel proportions, etc.It can analyze the influence of factors such as the number of evacuated persons on each floor of the college student apartment and the layout of the building's staircase on the evacuation time.The result shows:visibility change characteristics have a greater impact on evacuation and rescue;the original layout of the student apartment cannot satisfy the safe evacuation of all personnel;the bottleneck areas for emergency evacuation are indoor corridors and evacuation stairs;increasing the number of evacuation exits in the stairwell can effectively improve the efficiency of escape;when the number of students on each level reaches a certain value, restrictions must be taken, etc.The research results can provide a basis for the reasonable planning and management of evacuation passages in college student apartments.