基于CFD方法的室内步行街排烟方案分析
发布时间:2019-07-15 07:42
【摘要】:为分析室内步行街排烟方案的排烟效果,文章采用CFD方法对3、8 MW火灾功率下的16个排烟工况进行数值模拟,结果表明:在相同条件下,中庭顶部采用机械排烟方式比自然排烟方式排烟效果更好;在中庭回廊设置排烟有助于将商铺火灾溢出的烟气及时排除;中庭采用机械排烟方式时,中庭顶部排烟口布置方式对排烟效果影响不大,而采用自然排烟方式时,中庭顶部排烟口按天窗方式布置比按高侧窗方式布置排烟效果更好。
[Abstract]:In order to analyze the smoke exhaust effect of indoor pedestrian street smoke exhaust scheme, the CFD method is used to simulate 16 smoke exhaust conditions under 3, 8 MW fire power. The results show that under the same conditions, the mechanical smoke exhaust mode at the top of the atrium is better than the natural smoke exhaust mode, and the smoke exhaust in the atrium corridor is helpful to remove the smoke spilled from the shop fire in time. When the mechanical smoke exhaust mode is adopted in the atrium, the arrangement of the smoke outlet at the top of the atrium has little effect on the smoke exhaust effect, but when the natural smoke exhaust mode is adopted, the smoke exhaust port at the top of the atrium is better than the high side window.
【作者单位】: 安徽省合肥市公安消防支队;中国科学技术大学火灾科学国家重点实验室;
【分类号】:TU892
[Abstract]:In order to analyze the smoke exhaust effect of indoor pedestrian street smoke exhaust scheme, the CFD method is used to simulate 16 smoke exhaust conditions under 3, 8 MW fire power. The results show that under the same conditions, the mechanical smoke exhaust mode at the top of the atrium is better than the natural smoke exhaust mode, and the smoke exhaust in the atrium corridor is helpful to remove the smoke spilled from the shop fire in time. When the mechanical smoke exhaust mode is adopted in the atrium, the arrangement of the smoke outlet at the top of the atrium has little effect on the smoke exhaust effect, but when the natural smoke exhaust mode is adopted, the smoke exhaust port at the top of the atrium is better than the high side window.
【作者单位】: 安徽省合肥市公安消防支队;中国科学技术大学火灾科学国家重点实验室;
【分类号】:TU892
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