环境工程学报2011，Vol.5Issue(9)：2087-2090,4.
基于车载的天津市不同交通流特征下机动车排放率精细分析
Subtle-analysis of vehicle emission rate based on on-board measurement in different traffic times in Tianjin
高佳佳 1李孟良 2许嘉 1高继东 2高莹 1金陶胜1
作者信息
- 1. 南开大学环境科学与工程学院国家环境保护城市空气颗粒物污染防治重点实验室,天津300072
- 2. 中国汽车技术研究中心,天津300162
- 折叠
摘要
Abstract
By using OBS2200 on-board vehicle emission measurements,the emission rates of HC,CO,NOx and CO2 by seconds in three different periods of traffic flow State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control,（high traffic flow,low traffic flow and normal traffic flow） were obtained in Tianjin.The results suggested that the average emission rates of HC and CO during high traffic flow（0.027±0.018 g/s and 0.330±0.196 g/s） were 5.4 and 4.3 times of those during the low traffic flow,and were 3.9 and 9.2 times of those during the normal traffic flow.The average emission rates of NOx and CO2（0.006±0.006 g/s and 1.904±0.960 g/s） during low traffic flow were slightly higher than those during high traffic flow and normal traffic flow.Under acceleration conditions,the average emission rates of HC,CO,NOx and CO2 were 0.022±0.019 g/s、0.243±0.234 g/s、0.007±0.007 g/s and 1.766±0.946 g/s,which were respectively 1.1,1.4,2.3 and 1.9 times the deceleration conditions.With acceleration increased,the emission rates of four kinds of pollutants increased gradually.关键词
机动车排放/车载测试/天津Key words
vehicle emission/on-board measurement/Tianjin分类
环境科学引用本文复制引用
高佳佳,李孟良,许嘉,高继东,高莹,金陶胜..基于车载的天津市不同交通流特征下机动车排放率精细分析[J].环境工程学报,2011,5(9):2087-2090,4.
