Research on Soot Filtration and Pressure Drop Characteristics of DPF
作者单位：State Key Laboratory of Automotive Simulation and ControlJilin University China Automotive Technology&Research Center
会议名称：《2016中国汽车工程学会年会暨展览会》
会议届次：1
主办单位：SAE China
会议日期：2016年
学科分类：080703[工学-动力机械及工程] 08[工学] 0807[工学-动力工程及工程热物理]
基 金：funded by national key technology supporting plan(2014BAG11B01) national key research and development program(2016YFD0700800)
关 键 词：DPF deep bed filtration cake filtration pressure drop
摘 要：An integrated DPF filtration model is proposed to study the properties of soot filtration and pressure drop,which includes deep bed filtration model,cake filtration model and pressure drop *** results show that the evolution of filtration can be divided into two stages named as deep bed filtration and cake filtration *** deep bed filtration,soot is trapped in the filter wall,which results a rapid pressure drop gradient of 7.6Pa/***,the soot quality only accounts for 1.6% of the total in whole filtration *** soot layer is developed during soot *** a linear increase of pressure drop with the gradient of 1.4Pa/s during the ***,the pressure drop caused by the soot layer and cake layer are 54% and 38% respectively in the whole simulation duration.