长三角典型城市公交车道路NO_x排放测试  

On-Road NO_x Emissions Measurement of Urban Bus in Yangtze River Delta

作　　者：刘登国[1,2] 刘娟 黄伟民 冯谦[1] 楼狄明[1] 

机构地区：[1]同济大学汽车学院,上海201804 [2]上海市环境监测中心,上海200235

出　　处：《环境监测管理与技术》2016年第6期14-18,共5页The Administration and Technique of Environmental Monitoring

基　　金：上海市科委基金资助项目(13295810500)

摘　　要：为了研究长三角典型城市公交车在实际道路的氮氧化物(NO_x)排放特性,采用便携式车载排放测试系统(PEMS),对上海、杭州和苏州3大城市的国Ⅲ、国Ⅳ柴油公交车及LNG公交车共8辆进行实际道路NO_x排放试验。结果表明:在稳态行驶工况下,柴油公交车NO_x稳态每秒排放呈上升趋势,LNG公交车呈波动变化;国Ⅲ柴油公交车NO_x稳态燃料排放呈波动变化,国Ⅳ柴油及LNG公交车呈下降趋势;随比功率增加,柴油公交车NO_x瞬态排放大体呈逐渐增加的趋势,而LNG公交车呈先减少后增大的趋势,公交车NO_x综合单位里程排放因子在5.0 g/km^19.1 g/km之间,排放因子约为5.1 g/(kW·h)~15.8 g/(kW·h)。To study the characteristics of nitrogen oxides( NO_x) emissions from vehicles in the Yangtze River Delta,this research uses a portable emission measurement system( PEMS),which includes 8 typical urban buses in Shanghai, Hangzhou and Suzhou, including China Ⅲ, Ⅳ diesel buses, and LNG buses. The experimental results show that the NO_xemission of diesel buses increases with the increase of speed in steady state,but the NO_xemission of LNG bus changes. The fuel emissions of China Ⅲ diesel buses are fluctuating,while China Ⅳ diesel buses and LNG buses show a decrease trend. The NO_xof different types of diesel buses are gradually increasing with the increase of VSP,but the LNG buses show the trend of first decrease and then increase. Bus NO_xintegrated emission factor ranges in 5. 0 g / km ~ 19. 1 g / km,and the emission factor in5. 1 g /( k W·h) ~ 15. 8 g /( k W·h).

关 键 词：N0I 城市公交车 排放测试 长三角地区 实际道路 

分 类 号：X511[环境科学与工程—环境工程] X734.2