Modeling of Pressure Drop in a 3-D Network Ceramic Diesel Particulate Filter

Xu Dong Liu; Xiao Guo Bi

doi:10.4028/www.scientific.net/AMR.311-313.1924

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 311-313Modeling of Pressure Drop in a 3-D Network Ceramic...

Modeling of Pressure Drop in a 3-D Network Ceramic Diesel Particulate Filter

Abstract:

Diesel Particulate Filters (DPFs) provide probably the most effective means of trapping the exhaust emitted particulates from diesel engines. Three-dimension network ceramic filters become a promising alternative to the conventional wall flow filters, since they are effective in filtering small sized particles and provide a large specific surface area for catalytic coating. A mathematical model of pressure drop for a three-dimension network ceramic DPFs is developed. The model calculates the pressure drop of a filter as a function of the geometric filtering properties, operating conditions and structure of trapping. The calculated pressure drops of a filter agree well with the experimental results. The pressure drop of DPFs increases linearly with increasing trap length, and there is a nonlinear relationship between the exhaust gas mass flow rate and pressure drop. For optimized traps, the pressure drops are much lower than those of the filters with a unitary trap structure.

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Advanced Materials Research (Volumes 311-313)

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1924-1929

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https://doi.org/10.4028/www.scientific.net/AMR.311-313.1924

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Online since:

August 2011

Authors:

Xu Dong Liu, Xiao Guo Bi

Keywords:

Diesel Particulate Filters, Mathematical Models, Pressure Drop, Three-Dimension Network Ceramic

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