| CDPF对重型柴油车颗粒物排放特性的影响 |
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| 引用本文： | 王孟昊,黄成,任洪娟,胡磬遥,徐为标,韩雷. CDPF对重型柴油车颗粒物排放特性的影响[J]. 环境科学学报, 2021, 41(8): 3070-3075 |
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| 作者姓名： | 王孟昊 黄成 任洪娟 胡磬遥 徐为标 韩雷 |
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| 作者单位： | 上海工程技术大学,机械与汽车工程学院,上海201620;上海市环境科学研究院,国家环境保护城市大气复合污染成因与防治重点实验室,上海200233 |
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| 基金项目： | 上海市科学项目（No.18dz1203100）；国家自然科学基金（No.21777101）；上海市生态局项目（No.沪环科2019-01号） |
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| 摘 要： | 采用实验室底盘测功机和全流定容稀释采样系统(CVS),搭载EEPS3090,开展了国三重型柴油车加装催化型颗粒物捕集器(CDPF)前后颗粒物排放因子和粒径分布比较,进一步分析了不同工况下CDPF对各模态颗粒物排放因子的影响.结果 表明,重型柴油车加装CDPF前后基于单位里程的颗粒物数量排放因子分别为(2.7±1.1) ...
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| 关 键 词： | 颗粒物排放 粒径分布 排放因子 催化型颗粒物捕集器 柴油车 |
| 收稿时间： | 2020-11-12 |
| 修稿时间： | 2020-12-18 |
Effect of CDPF on the particle size distribution of heavy-duty diesel vehicles |
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| WANG Menghao,HUANG Cheng,REN Hongjuan,HU Qingyao,XU Weibiao,HAN Lei. Effect of CDPF on the particle size distribution of heavy-duty diesel vehicles[J]. Acta Scientiae Circumstantiae, 2021, 41(8): 3070-3075 |
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| Authors: | WANG Menghao HUANG Cheng REN Hongjuan HU Qingyao XU Weibiao HAN Lei |
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| Affiliation: | Mechanical and Automotive Engineering College, Shanghai University of Engineering Science, Shanghai 201620;State Environment Protection Key Laboratory of Formation and Prevention of the Urban Air Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233 |
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| Abstract: | Emission factors and size distribution of particle number and mass from a State 3 heavy-duty diesel vehicle installed with a catalytic diesel particulate filter (CDPF) using a particle analyzer (EEPS3090) on a chassis dynamometer and constant volume sampling (CVS) system. The impact of CDPF on the particle emissions of each mode were further analyzed under different driving conditions. The results show that the mileage-based emission factors w/o CDPF were (2.7±1.1)×1015 and 7.9×1014 km-1, respectively. The reduction rate of particle number emission was 71.10%, among which, those of nuclear mode and agglomeration particle emissions were 28.70% and 84.95%, respectively. With the increase of vehicle speed, CDPF maintained good effect on the agglomerated mode particles, and made sharply reduction on the nuclear mode particles. Under high speed conditions, the contribution of nuclear particle largely increased compared with low speed condition, which need pay more attention in the future. |
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| Keywords: | particulate matter emission particle size distribution emission factor catalytic diesel particulate filter diesel vehicle |
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