...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Experimental Assessment of NO_x Emissions from 73 Euro 6 Diesel Passenger Cars
【24h】

Experimental Assessment of NO_x Emissions from 73 Euro 6 Diesel Passenger Cars

机译：73辆欧6柴油乘用车NO_x排放的实验评估

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Controlling nitrogen oxides (NO_x) emissions from diesel passenger cars during real-world driving is one of the major technical challenges facing diesel auto manufacturers. Three main technologies are available for this purpose: exhaust gas recirculation (EGR), lean-burn NO_x traps (LNT), and selective catalytic reduction (SCR). Seventy-three Euro 6 diesel passenger cars (8 EGR only, 40 LNT, and 25 SCR) were tested on a chassis dynamometer over both the European type-approval cycle (NEDC, cold engine start) and the more realistic Worldwide harmonized light-duty test cycle (WLTC version 2.0, hot start) between 2012 and 2015. Most vehicles met the legislative limit of 0.08 g/km of NO_xX over NEDC (average emission factors by technology: EGR-only 0.07 g/km, LNT 0.04 g/km, and SCR 0.05 g/km), but the average emission factors rose dramatically over WLTC (EGR-only 0.17 g/km, LNT 0.21 g/km, and SCR 0.13 g/km). Five LNT-equipped vehicles exhibited very poor performance over the WLTC, emitting 7-15 times the regulated limit. These results illustrate how diesel NO_x emissions are not properly controlled under the current, NEDC-based homologation framework. The upcoming real-driving emissions (RDE) regulation, which mandates an additional on-road emissions test for EU type approvals, could be a step in the right direction to address this problem.
机译：在实际驾驶过程中，控制柴油乘用车的氮氧化物（NO_x）排放是柴油汽车制造商面临的主要技术挑战之一。为此，可以使用三种主要技术：废气再循环（EGR），稀薄燃烧NO_x捕集阱（LNT）和选择性催化还原（SCR）。在底盘测功机上对73辆欧6柴油乘用车（仅8 EGR，40 LNT和25 SCR）进行了测试，并通过了欧洲型式认可的循环（NEDC，发动机冷启动）和更现实的全球协调轻型载重量测试周期（WLTC 2.0版，热启动）在2012年至2015年之间。大多数车辆都超过了NEDC规定的NO_xX 0.08 g / km的法律限制（按技术计算的平均排放因子：仅EGR 0.07 g / km，LNT 0.04 g / km和SCR 0.05 g / km），但平均排放因子在WLTC之上显着提高（仅EGR为0.17 g / km，LNT为0.21 g / km和SCR为0.13 g / km）。五辆配备LNT的车辆在WLTC上表现出非常差的性能，排放了7-15倍的管制限值。这些结果说明了如何在当前基于NEDC的认证框架下无法正确控制柴油的NO_x排放。即将出台的实际驾驶排放法规（RDE）要求对欧盟类型的批准进行额外的道路排放测试，这可能是朝着解决此问题的正确方向迈出的一步。

著录项

  • 来源
    《Environmental Science & Technology》 |2015年第24期|14409-14415|共7页
  • 作者

    Liuhanzi Yang; Vicente Franco; Peter Mock; Reinhard Kolke; Shaojun Zhang; Ye Wu; John German;

  • 作者单位

    School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China,International Council on Clean Transportation Europe, Berlin 10178, Germany,Higher Institute for Environmental Engineering and Management (ISIGE), MINES ParisTech, Fontainebleau 77305, France;

    International Council on Clean Transportation Europe, Berlin 10178, Germany;

    International Council on Clean Transportation Europe, Berlin 10178, Germany;

    Allgemeiner Deutscher Automobil-Club, Technik Zentrum, Landsberg am Lech 86899, Germany;

    Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States;

    School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China,State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China;

    International Council on Clean Transportation, Washington, District of Columbia 20005, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号