...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Chemical Characterization of the Fine Particle Emissions from Commercial Aircraft Engines during the Aircraft Particle Emissions experiment (APEX) 1 to 3
【24h】

Chemical Characterization of the Fine Particle Emissions from Commercial Aircraft Engines during the Aircraft Particle Emissions experiment (APEX) 1 to 3

机译：飞机微粒排放实验（APEX）1到3期间商用飞机发动机微粒排放的化学特征

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

This paper addresses the need for detailed chemical information on the fine particulate matter (PM) generated by commercial aviation engines. The exhaust plumes of seven turbofan engine models were sampled as part of the three test campaigns of the Aircraft Particle Emissions eXperi-ment (APEX). In these experiments, continuous measurements of black carbon (BC) and particle surface-bound polycyelic aromatic compounds (PAHs) were conducted. In addition, time-integrated sampling was performed for bulk elemental composition, water-soluble ions, organic and elemental carbon (OC and EC), and trace semivolatile organic compounds (SVOCs). The continuous BC and PAH monitoring showed a characteristic U-shaped curve of the emission index (El or mass of pollutant/mass of fuel burned) vs fuel flow for the turbofan engines tested. The time-integrated Els for both elemental composition and water-soluble ions were heavily dominated by sulfur and SO-4~(2-), respectively, with a ~2.4% median conversion of fuel S(IV) to particle S(VI). The corrected OC and EC emission indices obtained in this study ranged from 37 to 83 mg/kg and 21 to 275 mg/kg, respectively, with the EC/OC ratio ranging from ~0.3 to 7 depending on engine type and test conditions. Finally, the particle SVOC Els varied by as much as 2 orders of magnitude with distinct variations in chemical composition observed for different engine types and operating conditions.
机译：本文解决了有关商用航空发动机产生的细颗粒物（PM）的详细化学信息的需求。作为飞机微粒排放实验（APEX）的三个测试活动的一部分，对七个涡扇发动机模型的排气羽进行了采样。在这些实验中，进行了黑碳（BC）和颗粒表面结合的多环芳香族化合物（PAHs）的连续测量。此外，还对整体元素组成，水溶性离子，有机和元素碳（OC和EC）以及痕量半挥发性有机化合物（SVOC）进行了时间积分采样。连续的BC和PAH监测表明，对于测试的涡扇发动机，排放指数（E1或污染物质量/燃烧的燃料质量）与燃料流量之间的特征曲线呈U型曲线。元素组成和水溶性离子的时间积分Els分别以硫和SO-4〜（2-）为主，燃料S（IV）向粒子S（VI）的中位转化率为〜2.4％ 。在这项研究中获得的校正后的OC和EC排放指数分别在37至83 mg / kg和21至275 mg / kg的范围内，根据发动机类型和测试条件，EC / OC比在〜0.3至7的范围内。最终，SVOC Els颗粒变化了2个数量级，并且在不同的发动机类型和工况下观察到化学成分的明显变化。

著录项

  • 来源
    《Environmental Science & Technology》 |2011年第8期|p.3415-3421|共7页
  • 作者

    J. S. Kinsey; M. D. Hays; Y. Dong; D. C. Williams; R. Logan;

  • 作者单位

    United States Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, MD E343-02, Research Triangle Park, North Carolina 27711, United States;

    United States Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, MD E343-02, Research Triangle Park, North Carolina 27711, United States;

    ARCADIS U.S., Inc., 4915 Prospectus Drive, Suite F, Durham, North Carolina 27713, United States;

    ARCADIS U.S., Inc., 4915 Prospectus Drive, Suite F, Durham, North Carolina 27713, United States;

    ARCADIS U.S., Inc., 4915 Prospectus Drive, Suite F, Durham, North Carolina 27713, 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