复式地下车库通风量确定与风口布置优化分析

Determination of outdoor airflow and optimization of vent distribution for underground compound garage

基于国内外现有车库通风量计算理论,借助CFD方法,对复式地下车库在不同通风量和不同排风口设置位置下的通风气流组织效果进行了分析.结果表明,复式地下车库的通风量确定可采用单台车所需排气量法估算并推荐采用稀释浓度法进行计算;其排风口宜布置于车库顶部以有效排除污染物,满足通风卫生要求.

Ventilation effectiveness and air distribution of underground compound garage were analyzed based on home and abroad garage ventilation theory with CFD. The results show that outdoor airflow of underground compound garage can be estimated with single vehicle displacement method and diluted concentration method is recommended. The exhaust outlet of underground compound garage should be installed on the top of the garage for making pollutants eliminate effectively and meeting for ventilation requirements.