柴油车烟雾排放与VSP Bin的相关性研究  

On the correlativity between smog exhaust and VSP Bin

作　　者：邱兆文[1] 邓顺熙[2] 陶双成[2] 郭庆妮[2] 王生昌[1] 

机构地区：[1]长安大学汽车学院,西安710064 [2]长安大学环境科学与工程学院,西安710064

出　　处：《安全与环境学报》2013年第1期72-75,共4页Journal of Safety and Environment

摘　　要：VSP Bin作为近年来较为成熟的机动车排放模型参数,并未在烟雾排放评估中应用。为了将VSP变量引入到柴油车在隧道内的烟雾排放量评估模型中,在研究VSP计算模型及其参数标定的基础上,探讨了基于VSP分布的柴油车烟雾排放特性,并应用聚类分析法对VSP进行分区数据处理。结果表明,单纯通过VSP分析烟雾排放特性,数据离散性相当明显,然而经过聚类数据处理后,VSP Bin与柴油车烟雾排放量之间的关系呈现良好的线性相关,验证了VSP Bin比功率分区作为烟雾排放量预测参数的可行性。The present paper is aimed at our study on the correlativity between the smog exhaust and VSP Bin. As is known, VSP Bin is not yet used in the diesel smog evaluation model, yet it can be used as a familiar parameter in the application of vehicular emission evaluation models. In order to introduce the variable of VSP into the smog model evaluation through the highway tunnel, we would like to make a dis- cussion of the quantitative models of VSP and demarcating methods. In our study, we have chosen mainly different types of heavy-duty diesel vehicles according to the VSP formula. And then, we have tested and anaiyzed the smog emission characteristics of the diesel ve- hicles exhaust based on VSP Bin, with the test data processed via clustering VSP Bin. For our research purpose, we have chosen four types of vehicles among the many for our testing. The instruments we have used include smog meter, flow meter, velocity meter, humidity and temperature meter, etc. While determining the testing conditions at the interval of 10 km/h from 20 km/h to 90 kin/h, we have worked out the extinction coefficient of diesels exhaust by using the smog meter, and then we have worked out the smog emission quantity by using the known model. As a result, we have prepared the charts o^f diesel smog exhaust with VSP, indicating that with the increase of vehicles＇ VSP, the diesel smog emissions are going up, too. This conclusion we have gained proves to be consistent with the physical analysis. However, we have found hat there exist still large gap of the discrete distributions among the data at the same level of VSP. At this point, we have found that the correlative coefficient between the diesel smog exhaust quantitative and VSP is just 44.97 %, while the clustering emission values can be defined by the average exhaust rate in the VSP Bin. But after clustering to VSP, the correlative coeffi- cient between the diesel smog exhaust quantitative and VSP is 99.54%, thus, indicating a well-proved linear correlation. The re- sults of our testin

关 键 词：环境工程学 烟雾排放量 VSP分区 柴油车 

分 类 号：X51[环境科学与工程—环境工程]