Inicio  /  Computation  /  Vol: 4 Par: 4 (2016)  /  Artículo
ARTÍCULO
TITULO

Effect of Pore Structure on Soot Deposition in Diesel Particulate Filter

Kazuhiro Yamamoto and Tatsuya Sakai    

Resumen

Nowadays, in the after-treatment of diesel exhaust gas, a diesel particulate filter (DPF) has been used to trap nano-particles of the diesel soot. However, as there are more particles inside the filter, the pressure which corresponds to the filter backpressure increases, which worsens the fuel consumption rate, together with the abatement of the available torque. Thus, a filter with lower backpressure would be needed. To achieve this, it is necessary to utilize the information on the phenomena including both the soot transport and its removal inside the DPF, and optimize the filter substrate structure. In this paper, to obtain useful information for optimization of the filter structure, we tested seven filters with different porosities and pore sizes. The porosity and pore size were changed systematically. To consider the soot filtration, the particle-laden flow was simulated by a lattice Boltzmann method (LBM). Then, the flow field and the pressure change were discussed during the filtration process.

 Artículos similares

       
 
Wenze Geng, Zhifei Song, Cheng He, Hongtao Wang and Xinyi Dong    
The type of soil and its compactness significantly influence its permeability coefficient, which in turn affects the drainage difficulty of soil pore water and the distribution of the infiltration line. However, current tailings dam models typically cons... ver más
Revista: Applied Sciences

 
Lin Sun, Junchao Li and Haoyu Lin    
Earthquakes impact the stability of municipal solid waste (MSW) landfills, especially those with high water levels, and may further lead to disastrous landslides. Numerical analysis offers an efficient and cost-effective way to study the seismic stabilit... ver más
Revista: Applied Sciences

 
Xin Chen, Linfei Li, Xiaofeng Li, Jianyu Kang, Xiang Xiang, Honglian Shi and Xingwei Ren    
The mechanical and hydraulic properties of soils are largely governed by their soil-water characteristics, which are influenced by factors such as pore size distribution (PSD). While biochar is commonly used as an additive to alter soil properties, its e... ver más
Revista: Water

 
Xiaorui Wang, Xu Liu, Yunhong Lin and Fei Tan    
Small curved metro shield tunnels located in fine sand layers are sensitive to the response of horizontal and vertical cyclic loads from train operations, especially for centrifugal horizontal loads. The majority of Zhengzhou?s strata are dominated by th... ver más
Revista: Water

 
Yukang Zhou, Long Chen, Mengtao Huang, Weilian Hu, Guicai Chen and Binxin Wu    
Through experiments, the effect of membrane material selection and operating conditions on permeate fluxes in direct contact membrane distillation (DCMD) desalination was investigated. The experiment used a plate and frame membrane module, and with nine ... ver más
Revista: Applied Sciences