...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Transportation Research >Light duty gasoline vehicle emission factors at high transient and constant speeds for short road segments
【24h】

Light duty gasoline vehicle emission factors at high transient and constant speeds for short road segments

机译：短路段高瞬态和恒定速度下的轻型汽油车辆排放因子

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

Vehicle emissions estimates are needed at high spatial and temporal resolution to estimate near-roadway air quality and human exposures. The M0BILE6 emission factor model is based on transient test cycles of less than 65 mph. Correction factors for high speed and constant speed are developed based on vehicle-specific power-based modal models for light duty gasoline vehicles, using data from portable emission measurement systems. At 80 mph versus 65 mph, the estimated average emission rates are greater by 30%, 20%, 80%, and 10% for NO_X, HC, CO, and CO_2. The ratio of constant to average of transient speed emission rates range from 0.49 to 0.94 for NO, at speeds of 20 mph and 80 mph. The high speed and constant speed correction factors are applied to estimate vehicle emissions for a freeway segment that includes vehicle cruising speeds between 65 and 80 mph. The potential error for not accounting for constant speed operation on a short segment of highway could be 49% at moderate speed and 24% at high speed.
机译：需要在高空间和时间分辨率下估算车辆排放，以估算近道路空气质量和人体暴露。 M0BILE6排放因子模型基于小于65 mph的瞬态测试周期。使用便携式排放测量系统的数据，基于轻型汽油车基于车辆的基于功率的模态模型，开发了高速和恒定速度的校正因子。在80 mph和65 mph的情况下，NO_X，HC，CO和CO_2的估计平均排放率分别提高了30％，20％，80％和10％。对于NO，在20 mph和80 mph的速度下，瞬态速度发射速率的常数与平均值之比范围为0.49至0.94。高速和恒速校正因子用于估算高速公路段的车辆排放量，其中包括65至80 mph的车辆巡航速度。如果不考虑高速公路的一小段等速运行的潜在误差，则在中速时为49％，在高速时为24％。

著录项

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