基于功基窗口法的国六重型柴油车实际道路排放研究

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摘要利用便携式排放测试系统（PEMS）对6辆典型国六重型柴油车开展了实际道路排放试验，并利用功基窗口法分析了重型车实际道路CO、NOx和PN排放特性，结果表明：实际行驶过程中重型柴油车排放后处理装置能有效控制CO和PN排放，但NOx排放存在显著不确定性.现行重型国六排放标准规定的功基窗口法在排放评估过程中最高可剔除46.68%的NOx高比排放窗口，大幅低估了实际道路工况尤其是市区拥堵路况下的重型柴油车NOx实际排放量，建议采用更加科学合理的数据处理方法评价重型车实际道路排放.

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	吕立群
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	王欣

关键词 ：重型柴油车, 实际道路排放, 国六排放法规, 功基窗口法

Abstract：Six typical China-VI heavy-duty diesel vehicles were selected for the real driving emission test with Portable Emission Measurement System (PEMS), and the CO, NO_x, and PN emission characteristics of heavy-duty vehicles were evaluated by the work-based window method. The results showed that the emission aftertreatment devices of heavy-duty diesel vehicles could effectively control the CO and PN emissions under real driving conditions, but there was significant uncertainty in NO_x emission. Up to 46.68% of the high specific NO_x emission windows were removed from the real driving emission evaluation by the work-based window method adopted in the current China-VI emission regulation, which led to serious underestimation of real NO_x emissions from heavy-duty vehicles under real driving conditions, especially in urban traffic congestion. In the subsequent revision of the emission regulations, a more scientific and reasonable evaluation method should be introduced to evaluate the real driving emissions of heavy-duty vehicles.

Key words： heavy-duty diesel vehicle real driving emission China-VI emission regulation work-based window method

收稿日期: 2020-12-11

PACS:	X51
	TK427

基金资助:国家自然科学基金青年科学基金资助项目（51806015）；青海省重大科技专项（2019-GX-A6），移动源污染排放控制技术国家工程实验室开放基金资助项目（NELMS2018A17）

通讯作者: 葛蕴珊,教授,geyunshan@163.com E-mail: geyunshan@163.com

作者简介: 吕立群(1994-),男,山东济宁人,北京理工大学博士研究生,主要从事机动车污染物排放测试及控制研究.发表论文7篇.

引用本文:

吕立群, 尹航, 王军方, 于全顺, 葛蕴珊, 王欣. 基于功基窗口法的国六重型柴油车实际道路排放研究[J]. 中国环境科学, 2021, 41(8): 3539-3545. LYU Li-qun, YIN Hang, WANG Jun-fang, YU Quan-shun, GE Yun-shan, WANG Xin. Research on real driving emissions from China-VI heavy-duty diesel vehicles based on work-based window method. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(8): 3539-3545.

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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2021/V41/I8/3539

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