关键词: 集装箱火灾, FDS模拟, 热释放速率, 热辐射, 温度场

Abstract: In order to study the fire behavior characteristics and influencing factors of banana water fuel in containers, container fire scenarios were designed under three opening states of the container doors (fully open, half open, and fully closed), four different positions of the fire source (shallow part, middle part, deep part, and corner of the container), and six wind speeds under three wind directions. The simulation results of FDS show that the opening state and the position of the fire source have a greater impact on the heat release rate, burning rate, and the temperature of the external container of the fire, while the impact of environmental wind changes is relatively small. There is a certain lag in both the rise of the smoke temperature and the occurrence time of the maximum value at positions away from the fire source. The average temperature at the center of the fire source under each working condition exhibits obvious stage characteristics, with a higher temperature in the upper area of the entire longitudinal section and a lower temperature in the lower area. The degree of influence of different factors on the evolution of the average temperature at the center of the fire source is as follows: position of the fire source > opening state > wind speed and direction. The research results have very important guiding significance for the prevention and extinguishing of container fires.

Key words: container fires, FDS simulation, heat release rate, thermal radiation, temperature field