Experimental investigation on deposition configuration of soot layer in diesel particle filter

被引：0

作者：

Meng, Zhong-Wei ^{[1
]}

Song, Qiang ^{[2
]}

Yao, Qiang ^{[2
]}

Xu, Xu-Chang ^{[2
]}

机构：

[1] Control and Safety Key Laboratory of Sichuan Province, School of Transportation and Automotive Engineering, Xihua University, Chengdu 610039, China

[2] Key Lab. for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China

来源：

Ranshao Kexue Yu Jishu/Journal of Combustion Science and Technology | 2012年 / 18卷 / 01期

关键词：

Dust - Bandpass filters - Air filters - Deposition - Soot - Forestry - Hydraulic conductivity - Monte Carlo methods;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Based on the visualized single channel filtration system, the deposition configuration of soot layer in diesel particle filter was investigated online by laser displacement measurement. The experimental results show that the filtration process can be divided into four stages: deep bed filtration, particle 'tree' growth, particle 'tree' connection and particle layer filtration. Soot layer thickness increases rapidly at the second stage and then increases slowly at soot layer filtration stage. Filtration velocity has great effect on soot deposition configuration at soot layer filtration stage. With the increase in filtration velocity, permeability coefficient and the porosity of soot layer decrease, and soot layer becomes denser. When Peclet number(Pe)1, permeability coefficient and the porosity of soot layer nearly remain constant.

引用

页码：20 / 26