基于MOVES的车辆排放因子测试

发布时间：2018-03-25 18:07

本文选题：排放因子　切入点：机动车排放模拟器　出处：《交通运输工程学报》2017年01期

【摘要】：应用机动车排放模拟器(MOVES)的微观层次对车辆的排放因子进行了数值模拟,采用便携式排放测试系统对试验车辆进行实际道路尾气排放测试,基于测试结果从排放因子角度对MOVES输出的模拟值进行验证。分析结果表明:在城市快速路上,大型货车CO_2、CO、NOx、HC、PM排放因子的模拟值与实测值的比值分别为1.40、0.72、1.01、1.05、1.05;在城市主干道上,大型货车CO、NOx、HC排放因子的模拟值与实测值的比值分别为0.70、1.07、1.07,而CO_2和PM排放因子的模拟值与实测值的比值分别为1.63和2.12;在城市高速路上,小型客车HC排放因子的模拟值与实测值的比值仅为0.34,而CO_2、CO、NOx排放因子的模拟值与实测值接近,其模拟值与实测值的比值分别为1.22、1.05、0.86;在城市主干道上,小型客车CO_2和NOx排放因子的模拟值与实测值接近,其模拟值与实测值的比值分别为1.20和1.10,而CO和HC排放因子的模拟值与实测值的比值分别为2.25和0.53。测试结果在一定程度上反映了MOVES预测车辆排放因子的准确性,表明使用MOVES模拟机动车排放因子时,需要对相应参数进行修正,才能更加真实地反映机动车排放水平。
[Abstract]:The vehicle emission factors are numerically simulated by using the vehicle emission simulator (MOVES) at the micro level, and the actual road exhaust emission is tested by the portable emission test system. Based on the test results, the simulated value of MOVES output is verified from the point of view of emission factor. The results show that the ratio of simulated value to actual value of emission factor of CO2COO / NOxHX / PM emission factor for large freight cars on urban expressway is 1.40,0.721.01 and 1.051.05, respectively; on urban main roads, The ratios of simulated and measured HC emission factors for large freight cars are 0.70 / 1.07and 1.63 and 2.12 respectively for CO_2 and PM emission factors, respectively. On urban highways, the ratio of simulated and measured emission factors is 1.63 and 2.12 respectively, and the ratio between the simulated and measured emission factors is 1.63 and 2.12, respectively, on the urban highway, the ratio of the simulated and measured emission factors is 1.63 and 2.12, respectively. The ratio of simulated and measured HC emission factor of minibus is only 0.34, while the simulated value of CO _ 2CO _ (2) CO _ (no _ x) emission factor is close to the measured value, and the ratio of simulation value to actual value is 1.221.05 / 0.86 respectively. The simulated values of CO_2 and NOx emission factors of minibuses are close to the measured values. The ratios of simulated and measured values are 1.20 and 1.10, respectively, while the ratios of simulated and measured CO and HC emission factors are 2.25 and 0.53 respectively. The test results reflect to some extent the accuracy of MOVES in predicting vehicle emission factors. It is shown that when MOVES is used to simulate vehicle emission factors, it is necessary to modify the corresponding parameters in order to reflect the emission level of motor vehicles more truthfully.
【作者单位】：北京交通大学机械与电子控制工程学院;深圳职业技术学院汽车与交通学院;长安大学环境科学与工程学院;
【基金】：国家自然科学基金项目(51478045) 深圳市科技计划项目(JCYJ20140702172114468)
【分类号】：X734.2;U467.48

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