The real driving emissions characteristics of light-duty diesel vehicle in four typical cities with varying altitudes in China

IF 6.4 2区工程技术 Q1 THERMODYNAMICS Case Studies in Thermal Engineering Pub Date : 2025-02-04 DOI:10.1016/j.csite.2025.105831

Haojie Gao , Rui Wang , Zhisong Wen , Xin Xiong , Zhuan Zheng , Shengqiang Lin , Hongchun Ding , Wenbin Tan

{"title":"The real driving emissions characteristics of light-duty diesel vehicle in four typical cities with varying altitudes in China","authors":"Haojie Gao , Rui Wang , Zhisong Wen , Xin Xiong , Zhuan Zheng , Shengqiang Lin , Hongchun Ding , Wenbin Tan","doi":"10.1016/j.csite.2025.105831","DOIUrl":null,"url":null,"abstract":"<div><div>Real driving emissions (RDE) tests were conducted on a China VI B compliant light-duty diesel vehicle in four cities with different altitudes. The emission factors of particle number (PN), nitrogen oxides (NOx), and carbon monoxide (CO) were calculated using the carbon dioxide (CO<sub>2</sub>) moving average window (MAW) method and compared across different altitudes and driving stages. The tests covered urban, rural, and motorway sections in these four cities. The results showed that NO<sub>X</sub> and CO emissions were highest in urban sections. The study also analyzed the impact of altitude, traffic conditions, and exhaust temperature on emission characteristics. The results indicated that CO and NO<sub>X</sub> emissions increased with altitude, while PN emissions showed different trends due to aftertreatment effects. In high-altitude areas, CO and PN emissions also increased with higher cylinder and exhaust temperatures. The emissions of all pollutants were significantly lower than the China VI b emission standards. We suggest further research to optimize aftertreatment systems to better control emissions and improve efficiency under varying altitudes and route conditions.</div></div>","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"67 ","pages":"Article 105831"},"PeriodicalIF":6.4000,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Case Studies in Thermal Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214157X25000917","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"THERMODYNAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

Real driving emissions (RDE) tests were conducted on a China VI B compliant light-duty diesel vehicle in four cities with different altitudes. The emission factors of particle number (PN), nitrogen oxides (NOx), and carbon monoxide (CO) were calculated using the carbon dioxide (CO₂) moving average window (MAW) method and compared across different altitudes and driving stages. The tests covered urban, rural, and motorway sections in these four cities. The results showed that NO_X and CO emissions were highest in urban sections. The study also analyzed the impact of altitude, traffic conditions, and exhaust temperature on emission characteristics. The results indicated that CO and NO_X emissions increased with altitude, while PN emissions showed different trends due to aftertreatment effects. In high-altitude areas, CO and PN emissions also increased with higher cylinder and exhaust temperatures. The emissions of all pollutants were significantly lower than the China VI b emission standards. We suggest further research to optimize aftertreatment systems to better control emissions and improve efficiency under varying altitudes and route conditions.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

中国四个典型不同海拔城市轻型柴油车真实行驶排放特征

在四个不同海拔的城市对一辆符合中国标准的轻型柴油车进行了实际驾驶排放（RDE）测试。采用二氧化碳（CO2）移动平均窗（MAW）法计算颗粒物数（PN）、氮氧化物（NOx）和一氧化碳（CO）的排放因子，并比较不同海拔和不同驾驶阶段的排放因子。测试覆盖了这四个城市的城市、农村和高速公路路段。结果表明，城市区域NOX和CO排放量最高。该研究还分析了海拔高度、交通状况和排气温度对排放特性的影响。结果表明，CO和NOX排放量随海拔高度的增加而增加，而PN排放量由于后处理的影响呈现不同的变化趋势。在高海拔地区，CO和PN排放量也随着汽缸和排气温度的升高而增加。各项污染物排放均明显低于国ⅵ排放标准。我们建议进一步研究优化后处理系统，以更好地控制排放并提高不同海拔和路线条件下的效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.