液化石油气轿车实际道路污染物排放特征  

On-road emission characteristics of liquefied petroleum gas cars

作　　者：姚志良[1] 张英志[2] 申现宝[2] 王岐东[2] 贺克斌[2] 

机构地区：[1]北京工商大学食品学院,北京100048 [2]清华大学环境学院,北京100084

出　　处：《环境工程学报》2011年第6期1330-1334,共5页Chinese Journal of Environmental Engineering

基　　金：国家高技术研究发展计划(863)项目(2006AA06A305);国家自然科学青年基金项目(41005068)

摘　　要：利用PEMS对国2技术LPG出租轿车和汽油轿车的实际道路排放进行测试,基于测试数据对LPG轿车排放特征进行解析,并与汽油轿车的排放因子进行对比分析。结果显示:速度和行驶模式对LPG轿车污染物排放影响明显;LPG轿车CO2、CO、HC和NOx污染物的实测排放因子分别为(169.5±22.2)、(2.18±2.38)、(0.07±0.05)和(0.52±0.35)g/km;基于实测和基于IVE模型方法模拟NEDC工况下的结果均表明,测试LPG轿车与汽油轿车相比其CO2、CO和HC排放因子均较低,而NOx排放因子较高。Six liquefied petroleum gas（LPG） taxis and gasoline passenger cars of China II emission control level were tested on roads using a portable emission measurement system（PEMS）.Based on the test data,the emission characteristics of LPG taxis were analyzed and the emission factors of LPG taxis and gasoline cars were compared.The results show that speed and driving patterns could have significant impacts on emissions of LPG cars.The emission factors of CO2,CO,HC and NOx of the LPG cars tested are（169.5±22.2）,（2.18±2.38）,（0.07±0.05） and（0.52±0.35）g/km,respectively.The emission factors derived from the real-world measurement data and simulated by the International Vehicle Emissions（IVE） model on the basis of the New European Driving Cycle（NEDC） both indicate that LPG cars have lower CO2,CO and HC emission factors,but higher NOx emission level than gasoline cars.

关 键 词：液化石油气 机动车 车载排放测试系统 排放特征 排放因子 

分 类 号：X51[环境科学与工程—环境工程]