点源参数对AERSCREEN计算最大落地浓度影响探析  

Analysis of the influence of point source parameters on the maximum concentration of AERSCREEN

作　　者：万凡凡 Wan Fanfan(Tianjin Huankeyuan Environmental Protection Technology Co.,Ltd. Tianjin 300191,China)

机构地区：[1]天津环科源环保科技有限公司,天津300191

出　　处：《环境与发展》2019年第9期247-248,共2页Environment & Development

摘　　要：为了解点源参数对污染物最大落地浓度的影响,采用了不同烟气温度、不同烟气流速和不同点源高度的案例,对比AERSCREEN的计算结果。计算结果表明:点源高度对最大落地浓度影响最为显著;烟气温度位于环境最高温度处附近,最大落地浓度出现骤降现象。实际环评工作中,适当地增加烟气流速和点源高度,可以降低最大落地浓度的计算结果。In order to understand the influence of point source parameters on the maximum concentration of pollutants, the cases of different flue gas temperatures, different flue gas flow rates and different point source heights were used to compare the calculation results of AERSCREEN. The calculation results show that the point source height has the most significant effect on the maximum concentration. When flue gas temperature of the point source is near the highest ambient temperature, the maximum concentration shows a sudden drop. In the actual EIA work, appropriately increasing the flue gas flow rate and the point source height can reduce the calculation result of the maximum concentration.

关 键 词：环境影响评价 点源 AERSCREEN模型 最大落地浓度 

分 类 号：X820.3[环境科学与工程—环境工程]