城市道路工况下汽车排放特征的影响因素研究  

Study on the influence factors of on-road emission characteristics of automotives

作　　者：卢云鹤 孙龙林[2] 黄文伟[2] 高谋荣[2] 

机构地区：[1]深圳市南山区环境监测站,广东深圳518052 [2]深圳职业技术学院,广东深圳518055

出　　处：《环境污染与防治》2013年第10期42-45,51,共5页Environmental Pollution & Control

摘　　要：在深圳市道路工况下,分析了汽车排放的主要影响因素。利用车载排放分析仪,进行不同道路、不同时段、不同汽车配置、不同行驶里程条件下的道路工况汽车尾气排放的测试,并对试验数据进行数值分析,计算对应的排放因子。试验数据表明,车辆在交通灯密集道路上的CO排放因子是无交通灯道路上的5倍左右,NOX和HC排放因子为2倍多;高峰时段的拥堵会导致CO和HC排放因子分别增加25%和79%;涡轮增压车辆的CO、NOX和HC排放因子分别为非涡轮增压车辆的45%、37%和8%;双离合器自动变速器(DSG)车辆的CO、NOX和HC排放因子分别为手动变速器(MT)车辆的64%、70%和75%;在行驶里程超过30万km后,车辆会加速劣化,需要重点监控。The dominating factors of on-road emission of automotives are analyzed in this paper. With the help of mobile exhaust tester, the emission of vehicles with various equipments and driving mileages is tested when they run- ning on different roads in different times. The test data are analyzed and the emission factors are calculated. The result shows that the CO,NOx and HC emission factor on the road with many traffic lamps is five times,twice and twice of those on the road without a traffic lamp separately;the traffic jam in rush hour will increase the CO and HC emission by 25 % and 79 % respectively ~ the CO, NOx and HC emissions factor of turbocharged vehicles are 45 %,37 ~ and 8 % of the ordinary vehicles; compared with the vehicle with manual transmission （MT）, the exhaust of vehicle with direct shift gearbox is appreciably below,their CO, NOx and HC emissions are only 64 %, 70 % and 75 % of the MT ones. The vehicle emission will deteriorate rapidly after 300 000 kilometers of driving distance,so this type of vehicle needs intensive monitoring.

关 键 词：排放因子 道路工况 车载排放分析仪 

分 类 号：X734.2[环境科学与工程—环境工程]