Study on Fire Simulation and Safety Distance of Reactor Thermal Runaway

Abstract

With the development of chemical industry, fire and explosion accidents become more and more frequent. In this paper, a simple analysis is carried out based on the thermal runaway of the reactor, and the explosion simulation is carried out by using the fluent numerical simulation software, according to the standard turbulence model (k- Σ) and the component transport selected EDC- (vortex-dissipative) model. Simulation result intuitively show the pressure, temperature, speed and the relationship between the distance from the center of bums. The results show that the pressure, temperature and velocity decrease exponentially after a certain distance away from the explosion center, the relative safe distance is between 50 and 100 meters in the dangerous area within 50 meters, and in the 100 - meter outside pressure temperature back to normal for a safe distance.