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通过CFD模拟计算给出了北京南站高架层环形车道夏季最不利条件下各区域的空气品质。结合国家标准《环境空气质量标准》和香港环保署颁布的《半封闭式公共交通换乘站地区空气污染控制》要求,分析了环形车道内的污染物浓度分布,认为其空气品质基本满足安全卫生要求。根据模拟计算给出了新风取风口的设置位置。
The CFD simulation results show the air quality of each area under the most unfavorable summer conditions of the Beijing North Station overhead ring road. According to the requirements of the national standard “Ambient Air Quality Standard” and the “Air Pollution Control in Semi-enclosed Public Transport Interchange Station Area” promulgated by Hong Kong Environmental Protection Agency, the distribution of pollutant concentration in the annular lane is analyzed, and its air quality is basically satisfied with safety and hygiene Claim. According to the simulation calculation, the location of fresh air outlet is given.