摘要
以LPG出租车为研究对象,在简易瞬态工况下测试LPG车辆的单车排放因子,对比分析了LPG车和汽油车的排放特性,研究了LPG原装车与改装车的排放差异,比较了几种不同车型的排放因子,研究了LPG出租车单车排放因子与行驶里程的关系。结果表明,与汽油车相比,LPG出租车CO排放降低至少48%,NOx排放降低至少62%;原装LPG出租车排放比改装车排放降低明显;LPG出租车的排放因子随车辆行驶里程的增加呈上升趋势。
Taking LPG taxis as researching objects, the emission factors of LPG taxis under simple transient driving mode were measured and the emission performance comparisons between LPG taxis and gasoline taxis were analyzed. The emission differences between OEM LPG cars and retrofitted ones were discussed, the emission factors among different models of LPG taxis were compared, and finally the relationship between emission factor and driving distance was researched. The research results show that, compared with gasoline taxis, LPG taxis have the reduction of 48 percent CO emission and 62 percent NOx emission. The OEM LPG taxis have lower emission than retrofitted ones. The emissions of LPG taxis are increased with the increase of traveling distance.
出处
《车用发动机》
北大核心
2009年第1期60-62,66,共4页
Vehicle Engine
基金
国家"八六三"计划项目(2006AA11A1C7)
