摘要
对第二代空气质量模式—混合烟气扩散模式HPDM进行了分析,通过与PPSP、AMS、GB等模式的对比和工程验算,指出了HPDM在计算混合层高度和处理烟气穿透方面的缺陷,并提出了相应的改进方案。计算结果表明:改进以后的模式性能更加完善,其预测结果总体上与改进前相当,但在夜间不出现浓度值的大幅度跃变,在部分局部穿透情况下不出现极端高浓度。
The Hypid Plume Despersion Model (HPDM) has been analyzed and compared with some other atmospheric diffusion models, such as PPSP, AMS and GB etc. By comparison betweem the four models, it indicated that the deficiency of HPDM were found in estimating the mixing depth and plume penetration, and some suggestions for improving were proposed. The modified model performed well than before, in which the remarkable discontinuous concentrations no longer appear at night, and the extremely high concentrations under the condition of partly penetration disappear either.
出处
《上海环境科学》
CAS
CSCD
1999年第9期404-407,共4页
Shanghai Environmental Sciences
基金
华东电管局科技项目
关键词
大气扩散模式
大气环境
环境影响评价
HPDM
Atmospheric diffusion model Thermal electric power Atmospheric environment EIA
