基于便携式排放测试系统的尾气遥感监测设备测量准确度评估  

Measurement accuracy evaluation of exhaust gas remote sensing monitoring equipment based on portable emission measurement system

作　　者：刘鑫 LIU Xin(Tangshan Motor Vehicle Pollution Control Center,Tangshan 063000,Hebei,China)

机构地区：[1]唐山市机动车污染防治中心,河北唐山063000

出　　处：《柴油机设计与制造》2025年第1期29-33,共5页Design and Manufacture of Diesel Engine

摘　　要：我国常用的机动车尾气检测方法包括遥感法、实际行驶污染物排放试验(RDE)法等。其中,遥感法检测效率高,但测试结果受环境因素影响大;RDE法测试准确度高,但检测过程繁琐,无法实现在用车辆的广泛检测。为评估遥感设备测量准确度,选取1台国五重型柴油车,安装便携式车载排放测试系统(PEMS)与13台遥感设备,进行排放相关性研究的比对试验。结果表明:在匀速工况下,遥感设备可以实现对各污染物的高精度确测量;但在加速工况下,遥感设备准确测量各污染物的难度较大;垂直式、水平式遥感设备对于污染物测量的精度无明显优劣。目前遥感设备测量精度低于实验室分析仪及PEMS,故提升测量精度是其发展与应用面临的重要课题。The commonly used methods for detecting motor vehicle exhaust emissions in China in-clude remote sensing method,actual driving pollutant emission test(RDE)method,etc.Among them,remote sensing method has high detection efficiency,but the test results are greatly affected by environ-mental factors.The RDE method has high accuracy in testing,but the detection process is cumbersome and cannot achieve extensive detection of vehicles in use.To evaluate the measurement accuracy of re-mote sensing equipment,a portable on-board emission measurement system(PEMS)was installed on a National V heavy-duty diesel vehicle and compared with 13 remote sensing devices for emission correla-tion research.The results show that high-precision measurement of various pollutants can be achieved under uniform speed conditions,but it is difficult for domestic remote sensing equipment to accurately measure various pollutants under accelerated conditions.There is no significant difference in the accu-racy of pollutant measurement between vertical and horizontal remote sensing equipment.At present,the measurement accuracy of remote sensing equipment is lower than that of laboratory analyzers and PEMS,and improving accuracy is an important issue facing its development and application.

关 键 词：尾气排放 遥感监测设备 便携式排放测试系统 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]