对点采样方法的评估和对远程排放传感系统的相互比较,以选现实世界的汽车排放
Markus Knoll1, Martin Penz1, Christina Schmidt2
1Institute of Electrical Measurement and Sensor Systems, Graz University of Technology, Inffeldgasse 33/I, Graz 8010, Austria.
The Science of the total environment
|March 30, 2024
概括
与现有的灭光方法相比,新的点采样 (PS) 远程排放传感系统提供了更准确的车辆排放测量,特别是颗粒物 (PM),与现有的灭光方法相比. 这种先进的技术有助于可靠地识别高污染汽车.
科学领域:
- 环境科学 环境科学
- 汽车工程 汽车工程
- 分析化学 分析化学
背景情况:
- 车辆排放监测对于环境保护至关重要.
- 目前的远程排放传感 (RES) 技术在准确性方面存在局限性,特别是在颗粒物 (PM) 方面.
- 基于灭光的可再生能源系统在PM量化方面遇到了困难,需要改进方法.
研究的目的:
- 为了评估一个新的点采样 (PS) RES系统的性能.
- 将PS系统与最先进的灭光RES设备 (EDAR和ORSD) 进行比较.
- 评估用于车辆排放监测的不同可再生能源技术的准确性和能力.
主要方法:
- 对PS,EDAR和ORSD系统的同位测量.
- 使用便携式排放测量系统进行验证.
- 在欧洲三座城市对数千辆车进行大规模的排放查.
- 对PS系统性能进行气象影响分析.
主要成果:
- 所有测试的系统都有效地选了欧元6前柴油汽车的氧化排放.
- 该PS系统在高颗粒物和低颗粒物 (PM) 排放器中都表现出卓越的准确性.
- 开放式可再生能源系统在量化来自新型柴油和汽油车辆的PM方面存在局限性.
- PS系统的捕获率低于开放路径系统,但对PM和NOx的准确性明显更高.
结论:
- 点采样 (PS) 系统提供比当前的光灭RES方法更准确的车辆排放数据,特别是PM.
- 由于其测量精度,PS是可靠识别高排放汽车的宝贵工具.
- 进一步开发和应用PS技术可以提高车辆排放监测和监管合规性.
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