污染控制技术及原理
王岐东,姚志良,霍红,贺克斌.中国城市轻型车的排放特性[J].环境科学学报,2008,28(9):1713-1719
中国城市轻型车的排放特性
- Instantaneous emission characteristics of vehicles in Chinese cities
- 基金项目：美国能源基金会资助项目
- 作者
- 单位
- 王岐东
- 清华大学环境科学与工程系, 北京 100084
- 姚志良
- 清华大学环境科学与工程系, 北京 100084
- 霍红
- 清华大学环境科学与工程系, 北京 100084
- 贺克斌
- 清华大学环境科学与工程系, 北京 100084
- 摘要：采用机动车实际上路排放测试系统对北京、重庆和成都3城市27辆轻型车进行了测试和分析;采用发动机比功率VSP、发动机负荷ES和排放单元BIN分析了轻型车瞬态排放的特征及影响排放的主要因素.结果表明,发动机技术和累计行驶里程对排放的影响很大,而VSP等概念还反映了道路坡度对排放因子的影响;由于城市道路坡度的差异,导致同一测试车辆在重庆和成都2个城市的排放水平相差10%～100%.
- Abstract：Twenty-seven light duty vehicles were tested in Beijing,Chongqing,and Chengdu using an on-board vehicle emission test system.Vehicle Specific Power(VSP),Engine Stress(ES),and BINwere introduced to analyze the instantaneous emission characteristics of the vehicles and the major factors influencing vehicle emissions.The results showed that engine technologies and accumulative vehicle mileage affect the emission rates significantly.Besides,concepts such as VSP also reflect the influence of variation in road height on vehicle emission factors.The emission factors of the same vehicles varied by 10%-100% in Chongqing and Chengdu due to differences in the average road gradient of the two cities.
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