...
首页> 外文期刊>Environmental Science & Technology >The Effect of Federal Fuel Sulfur Regulations on In-Use Fleets: On-Road Heavy-Duty Source Apportionment
【24h】

The Effect of Federal Fuel Sulfur Regulations on In-Use Fleets: On-Road Heavy-Duty Source Apportionment

机译:联邦燃料硫法规对在用机队的影响:道路上重型源头分配

获取原文
获取原文并翻译 | 示例
           

摘要

From 2002 to 2007 fuel sulfur content in the Minneapolis/St. Paul area decreased from about 325 ppm S to <15 ppm S as a result of EPA regulations. We hypothesized that the reduction in fuel sulfur would result in a reduction of fuel specific heavy duty (HD) particle number emissions for the on-road diesel fleet. Fuel specific emissions were estimated by collecting on-road aerosol data, and exploiting the difference in the relative volumes of HD and light duty (LD) traffic on the roadway. Fuel-specific particle number emissionsfor HD vehicles were measured to be 9.1 ± 6.6 × 10~(15) and 3.2 ± 2.8 × 10~(15) particles/kg of fuel burned, in 2006 and 2007, respectively, a reduction of 65%. In an earlier study in 2002 particle number emissionsforthein-useHDfleetwere 4.2±0.6 × 10~(15) particles/ km compared to the current measurements of 2.8 ± 2.1 × 10~(15) and 9.9 ± 8.7 × 10~(14) particles/km in 2006 and 2007, respectively. The HD particle mass emission standard remained unchanged from 1994 through 2006 and few 2007 HD vehicles were on the road at the time of this study so the decreases in number observed emissions are more likely due to reductions in the sulfur content of the fuel than to changes in engine and aftertreatment design.
机译:从2002年到2007年,明尼阿波利斯/圣保罗的燃料硫含量。由于EPA规定,Paul的面积从约325 ppm S降至<15 ppmS。我们假设燃料硫的减少将导致公路柴油车队的燃料比重(HD)颗粒物排放量减少。通过收集道路上的气溶胶数据,并利用道路上高清和轻载(LD)交通的相对数量差异来估算燃料的特定排放。据测定,2006年和2007年,高清汽车的燃料特定颗粒物排放量分别为9.1±6.6×10〜(15)和3.2±2.8×10〜(15)颗粒/ kg燃烧的燃料/千克,减少了65% 。在2002年的一项较早研究中,与目前测量的2.8±2.1×10〜(15)和9.9±8.7×10〜(14)粒子/时相比,使用中的HD舰队的粒子数排放为4.2±0.6×10〜(15)粒子/ km。公里分别在2006年和2007年。从1994年到2006年,高清颗粒物排放标准一直保持不变,在进行本研究时,几乎没有2007年的高清车辆在行驶中,因此观察到的排放量减少的可能性更大,这是由于燃料中硫含量的降低而不是改变在发动机和后处理设计中。

著录项

  • 来源
    《Environmental Science & Technology》 |2009年第14期|5358-5364|共7页
  • 作者单位

    Uniuersity of Minnesota, Department of Mecltanieal Ungiueering, Center for Diesel Research, 111 Church St. ,SE, Room 1100 ME, Minneapolis, Minnesota 55455;

    Uniuersity of Minnesota, Department of Mecltanieal Ungiueering, Center for Diesel Research, 111 Church St. ,SE, Room 1100 ME, Minneapolis, Minnesota 55455;

    Uniuersity of Minnesota, Department of Mecltanieal Ungiueering, Center for Diesel Research, 111 Church St. ,SE, Room 1100 ME, Minneapolis, Minnesota 55455;

  • 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