重型柴油车实际道路氮氧化物和碳排放研究

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摘要通过对20辆国五及国六重型柴油车排放远程监控数据分析，分别使用3B-MAW方法、总行程平均法以及功基窗口法对数据进行分析，获取了重型柴油车在实际道路上的NO_x和CO₂排放特征.数据分析结果表明国六重型柴油车实际道路NO_x排放显著低于国五重型柴油车，且二者在中/高负荷工况下的NO_x排放相比低负荷时亦有明显降低.但国六重型柴油车的CO₂排放却比国五重型柴油车高出10%左右，应引起广泛重视.按窗口功率比大小进行NO_x排放分析的3B-MAW方法，既能考虑到重型柴油车道路排放特点，又能兼顾SCR催化剂对NO_x排放控制的技术特点，适合用于进行重型柴油车排放远程监控数据评价分析

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关键词 ：重型柴油车, 远程排放监控, NO_x排放, CO₂

Abstract：Heavy-duty vehicles have become one of the major NO_x pollution sources in China, as well as a key contributor of motor vehicles' CO₂ emissions. Therefore, controlling NO_x and CO₂ emissions from heavy-duty vehicles is the top priority in energy saving and emission reduction of motor vehicles. This paper investigated the real-road NOx and CO₂ emission features of heavy-duty diesel vehicles by analysing the remotely monitored emission data of some typical China-5 and China-6 diesel vehicles. The results show that the real-road NO_x emission level of China-6heavy-duty diesel vehicles is significantly lower than that of China-5 counterparts. However, the CO₂ emission level is about 10% higher from China-6 heavy-duty vehicles than from China-5 counterparts. The 3B-MAW method for NO_x emission analysis based on window power ratios can take into account not only the real-road emission characteristics of heavy-duty diesel vehicles, but also the technical features of SCR catalysts for NO_x emission control, and is suitable for the evaluation of remote monitoring data of heavy-duty diesel vehicle emissions.

Key words： heavy-duty diesel vehicles remote emission monitoring NO_x emissions CO₂

收稿日期: 2023-06-09

PACS:

X511

基金资助:国家重点研发计划（2022YFC3701802）；国家自然科学基金资助项目（52272342）；青海省科技厅重大专项（2019-GX-A6）

通讯作者: 黄英,教授,hy111@bit.edu.cn E-mail: hy111@bit.edu.cn

作者简介: 葛子豪(1996-),男,北京市人,北京理工大学博士研究生,主要从事汽车排放研究.发表相关论文1篇.3120225263@bit.edu.cn.

引用本文:

葛子豪, 尹航, 徐龙, 杨扬, 吉喆, 黄英. 重型柴油车实际道路氮氧化物和碳排放研究[J]. 中国环境科学, 2024, 44(2): 646-653. GE Zi-hao, YIN Hang, XU Long, YANG Yang, JI Zhe, HUANG Ying. Emissions of nitrogen oxides and carbon dioxide from heavy-duty diesel vehicles based on remote monitoring. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(2): 646-653.

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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2024/V44/I2/646

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