路网机动车排放因子测算与不确定性分析

发布时间：2018-05-29 18:49

本文选题：城市交通 + 交通环境　；参考：《哈尔滨工业大学学报》2017年03期

【摘要】：为分析交通指数和排放因子的测算机理,选择以速度为衔接点,首先研究交通指数下的速度分布测算方法和速度对排放因子的修正关系;其次,研究交通指数下的路网机动车排放因子测算方法,并分析排放因子的不确定性量化方法;然后,以北京为例,测算交通指数下的路网交通排放因子.结果表明:当路网交通指数位于2~8之间时,CO_2排放因子随交通指数的增长而平稳增加,但交通指数在(0.6,2]和(8,9.4]时,CO_2排放因子随交通指数的增长而快速增加.最后,统计了不同聚类方法下的排放因子偏差率,发现按工作日节假日和上下午分类后,交通指数下的CO_2、CO、HC、NOx排放因子平均偏差率分别从3.48%、6.67%、6.08%、6.68%下降至2.65%、5.35%、5.20%、5.36%.
[Abstract]:In order to analyze the measuring mechanism of traffic index and emission factor, this paper chooses speed as the link point, first, studies the calculating method of velocity distribution under traffic index and the correction relation of speed to emission factor; secondly, This paper studies the calculation method of vehicle emission factor in road network under traffic index, and analyzes the uncertainty quantification method of emission factor, and then, taking Beijing as an example, calculates the emission factor of road network under traffic index. The results show that when the road network traffic index is between 2 and 8, the emission factor of COK2 increases steadily with the increase of the traffic index, but the emission factor of COCO2 increases rapidly with the increase of the traffic index when the traffic index is between 0. 6 and 9. 4. Finally, the emission factor deviation rates under different clustering methods were analyzed, and it was found that the average deviation rate of the emission factor deviation of CO2CHCN NOx emission factor in traffic index decreased from 3.48 ~ 6.67 ~ 6.08 ~ 6.68% to 2.65 ~ 5.35 ~ 5.35% and 5.20 ~ 5.36%, respectively, after working day holidays and morning and afternoon classification, and the average deviation rate of no _ x emission factor was decreased from 3.48 ~ 6.67 ~ 6.08 ~ 6.68% to 2.65 ~ 5.35% ~ 5.20% respectively.
【作者单位】：城市交通复杂系统理论与技术教育部重点实验室(北京交通大学);北京市交通行业节能减排中心;北京交通发展研究中心;华录智达科技有限公司;
【基金】：国家自然科学基金(51208033,71273024) 中央高校基本科研业务费专项资金(T14JB00180)
【分类号】：U491.9

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