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

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Edited by:

Zhongning Guo

Pages:

1924-1929

DOI:

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

Citation:

X. D. Liu and X. G. Bi, "Modeling of Pressure Drop in a 3-D Network Ceramic Diesel Particulate Filter", Advanced Materials Research, Vols. 311-313, pp. 1924-1929, 2011

Online since:

August 2011

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Price:

$35.00

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