基于PEMS的机动车尾气碳排放特征初探  

Preliminary Study on Characteristics of Carbon Dioxide Emission from Vehicle Exhaust Based on PEMS

作　　者：周俐峻[1] 郁建桥[1] 唐果 孙前 丁剑[1] 沈钢 ZHOU Li-jun;YU Jian-qiao;Tang Guo;SUN Qian;DING Jian;SHEN Gang(Jiangsu Environmental Monitoring Center,Nanjing 210019,China;Tsinghua University Suzhou Automotive Research Institute(Wujiang)Suzhou 215200,China;Jiangsu Suli Environmental Technology Co.,Ltd.,Nanjing 210019,China)

机构地区：[1]江苏省环境监测中心,江苏南京210019 [2]清华大学苏州汽车研究院(吴江),江苏苏州215200 [3]江苏省苏力环境科技有限责任公司,江苏南京210019

出　　处：《环境科技》2023年第1期12-15,共4页Environmental Science and Technology

基　　金：江苏省环境监测科研基金项目(2125):基于源头污染控制的新生产机动车(机械)环保核查技术参数及绩效评估研究.

摘　　要：利用便携式排放测试系统(PEMS),对江苏省9辆国六阶段新生产机动车(5辆轻型汽油车、1辆轻型柴油车、3辆重型柴油车)进行实际道路CO_(2)排放测试,分析了不同车型CO_(2)排放特征,并对其中的4辆机动车进行了实时油耗监测,分析其与碳平衡核算结果的差异。结果表明:9辆机动车综合CO_(2)排放因子在152.31~859.01 g/km之间,总体表现为“重型柴油车>轻型柴油车>轻型汽油车”;除轻型柴油车外,轻型汽油车和重型柴油车各工况下的CO_(2)平均排放因子表现为“市区>高速>市郊”;油耗与CO_(2)排放因子的走势一致,两者正相关性显著(R2=0.958);实测油耗低于碳平衡核算结果,两者平均相对误差为3.9%,说明利用碳平衡法进行此类车型的CO_(2)排放核算具有较高的可信度。The portable emission test system(PEMS)was used to test the actual road CO_(2)emissions of 9 newly produced motor vehicles(5 light gasoline vehicles,1 light diesel vehicles,3 heavy diesel vehicles)in Jiangsu Province during the sixth phase of the country.The characteristics of CO_(2)emissions of different models were analyzed,and the real-time fuel consumption monitoring of 4 of these vehicles was carried out to analyze the differences between them and the carbon balance accounting results.The results show that:The comprehensive CO_(2)emission factors of 9 motor vehicles range from 152.31 g/km to 859.01 g/km,and the overall performance is"heavy diesel vehicle>light diesel vehicle>light gasoline vehicle".Except for light diesel vehicles,the average CO_(2)emission factors of light gasoline vehicles and heavy diesel vehicles under various working conditions are"urban>high-speed>suburban".The trend of fuel consumption and CO_(2)emission factor is consistent,with a significant positive correlation(R^(2)=0.958).The measured fuel consumption is lower than the carbon balance accounting result,and the average relative error between the two is 3.9%,which shows that the CO_(2)emission accounting of this type of vehicle using carbon balance has a high reliability.

关 键 词：PEMS 江苏省 机动车 二氧化碳 尾气排放 

分 类 号：X7[环境科学与工程—环境工程]