Abstract
In recent years, experimental building fire accidents occurred frequently in colleges and universities, which caused great economic losses and casualties. In this paper, based on the analysis of the causes of fire accidents, in order to understand the fire development process and the law of smoke spread in the experimental building, Pyrosim is applied to simulate the fire caused by inadvertent use of electrical appliances, and the smoke spread, visibility, temperature, and temperature during the fire development process are studied. The results show that in the process of fire development, both temperature and carbon monoxide concentration exceed the range of human body, and the safety of personnel evacuation does not meet the current national standards. Finally, according to the simulation results, the corresponding conclusions and suggestions for improvement are given in order to provide reference for the fire of experimental buildings in colleges and universities and improve the safety performance.