火灾环境下储罐热响应行为的数值模拟

Numerical simulation on thermal response of tank pressure and temperature in fire

建立火灾环境下的储罐热响应模型,针对立式储罐进行数值模拟.计算结果表明储罐压力响应速率随充装率的增大而增大,随热流密度的增大而增大,随储罐壁面材料传热系数的增大而增大;储罐内部介质温度响应数率随充装率的增大而减小,随储罐壁面材料传热系数的增大而增大.

A model of thermal response of storage tank under fire was set up,and numerical simulation of the vertical tank was carried out. The results showed that the rate of internal pressure rise in tank increased with the increase of fill level、heat flux and thermal conductivity. The rate of internal temperature rise in tank increased with the increase of heat flux and thermal conductivity but decreased with the increase of fill level.