国道和乡村道路条件下三轮汽车的排放特性
为了分析实际道路行驶时三轮汽车的排放特征,该研究利用车载排放测试系统(portableemissionmeasurementsystem,PEMS)对国道和乡村道2种道路条件下的10辆三轮汽车的常规气态污染物和颗粒物进行了排放测试。结果发现:在2种道路条件下的3种行驶工况(加速工况、匀速工况和减速工况)中,三轮汽车在加速工况下的各项排放因子均高于其他工况;加速工况下,CO的平均排放因子高出匀速工况和减速工况的0.7倍和1.7倍;3种工况条件下,三轮汽车在乡村道上行驶产生的排放均高于国道;对比速度、加速度和排放速率等高线图发现,在不同道路条件下CO、HC和PM排放速率峰值出现在车速较低而加速度较...
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Published in | 农业工程学报 Vol. 30; no. 4; pp. 47 - 53 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
北京理工大学机械与车辆学院汽车动力性与排放测试国家专业实验室,北京,100081%中国环境科学研究院,北京,100012
2014
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Subjects | |
Online Access | Get full text |
ISSN | 1002-6819 |
DOI | 10.3969/j.issn.1002-6819.2014.04.007 |
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Summary: | 为了分析实际道路行驶时三轮汽车的排放特征,该研究利用车载排放测试系统(portableemissionmeasurementsystem,PEMS)对国道和乡村道2种道路条件下的10辆三轮汽车的常规气态污染物和颗粒物进行了排放测试。结果发现:在2种道路条件下的3种行驶工况(加速工况、匀速工况和减速工况)中,三轮汽车在加速工况下的各项排放因子均高于其他工况;加速工况下,CO的平均排放因子高出匀速工况和减速工况的0.7倍和1.7倍;3种工况条件下,三轮汽车在乡村道上行驶产生的排放均高于国道;对比速度、加速度和排放速率等高线图发现,在不同道路条件下CO、HC和PM排放速率峰值出现在车速较低而加速度较大的区域;对比国道和乡村道上颗粒物数量浓度分布发现,2种道路条件的分布规律相似,以核模态和积聚模态颗粒为主;在乡村道上行驶时,粗粒子模态颗粒数量浓度高于国道上的。该研究成果为三轮汽车的排放控制提供了参考。 |
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Bibliography: | vehicles; emission control; diesel engines; tri-wheel vehicle; portable emission measurement system;different roads; driving condition Xu Zhenxian1, Hao Lijun1, Ding Yan2, Yin Yang2, Ge Yunshan~, Fu Mingliang~, Wang Xin~ (1. National Lab of Auto Performance and Emission Test, School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China; 2. Chinese Research Academy of Environmental Science, Beijing 100012, China) 11-2047/S With considerable population and high emission rates, tri-wheel vehicles contribute to significant pollution throughout China. The first-phase and second-phase emission standards for rural vehicles were introduced in 2006 and 2007. However, the effectiveness of the standards is unknown due to the lack of relevant research. In this study, a Portable Emission Measurement System (PEMS), which is comprised of a regulated gaseous emission analyzer (SEMTECH-DS) and an electrical low pressure impactor (ELPI), was introduced to characterize the emissions of tri |
ISSN: | 1002-6819 |
DOI: | 10.3969/j.issn.1002-6819.2014.04.007 |