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Development of a 1-D Catalyzed Diesel Particulate Filter Model for Simulation of the Oxidation of Particulate Matter and Gaseous Species During Passive Oxidation and Active Regeneration
Technical Paper
2013-01-1574
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Numerical modeling of aftertreatment systems has been proven to
reduce development time as well as to facilitate understanding of
the internal physical and chemical processes occurring during
different operating conditions. Such a numerical model for a
catalyzed diesel particulate filter (CPF) was developed in this
research work which has been improved from an existing numerical
model briefly described in reference.
The focus of this CPF model was to predict the effect of the
catalyst on the gaseous species concentrations and to develop
particulate matter (PM) filtration and oxidation models for the PM
cake layer and substrate wall so as to develop an overall model
that accurately predicts the pressure drop and PM oxidized during
passive oxidation and active regeneration. Descriptions of the
governing equations and corresponding numerical methods used with
relevant boundary conditions are presented.
Calibration of the model was carried out using data obtained
from passive oxidation as well as active regeneration experiments
conducted on a Cummins ISL diesel engine using ultra-low sulfur
diesel (ULSD) fuel with 10% (B10) and 20% (B20) bio-diesel blends
and equipped with a diesel oxidation catalyst (DOC)-CPF
aftertreatment system. Results obtained from simulations are
presented to show the capability and variables that are obtainable
from the model. This research work demonstrates the ability of the
model to simulate performance characteristics of a DOC-CPF
aftertreatment system at different engine operating conditions for
varying rates of NO₂-assisted and O₂-assisted PM oxidation
reactions for passive oxidation and active regeneration engine
conditions.
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Citation
Premchand, K., Johnson, J., and Yang, S., "Development of a 1-D Catalyzed Diesel Particulate Filter Model for Simulation of the Oxidation of Particulate Matter and Gaseous Species During Passive Oxidation and Active Regeneration," SAE Technical Paper 2013-01-1574, 2013, https://doi.org/10.4271/2013-01-1574.Also In
References
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