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 Michigan Technological Univ

Format:

Conference/Event

Author/Creator:

Premchand, Premchand, author.

Contributor:

Johnson, John H.

Yang, Song-Lin

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

Numerical modeling of aftertreatment systems has been proven toreduce development time as well as to facilitate understanding ofthe internal physical and chemical processes occurring duringdifferent operating conditions. Such a numerical model for acatalyzed diesel particulate filter (CPF) was developed in thisresearch work which has been improved from an existing numericalmodel briefly described in reference.The focus of this CPF model was to predict the effect of thecatalyst on the gaseous species concentrations and to developparticulate matter (PM) filtration and oxidation models for the PMcake layer and substrate wall so as to develop an overall modelthat accurately predicts the pressure drop and PM oxidized duringpassive oxidation and active regeneration. Descriptions of thegoverning equations and corresponding numerical methods used withrelevant boundary conditions are presented.Calibration of the model was carried out using data obtainedfrom passive oxidation as well as active regeneration experimentsconducted on a Cummins ISL diesel engine using ultra-low sulfurdiesel (ULSD) fuel with 10% (B10) and 20% (B20) bio-diesel blendsand equipped with a diesel oxidation catalyst (DOC)-CPFaftertreatment system. Results obtained from simulations arepresented to show the capability and variables that are obtainablefrom the model. This research work demonstrates the ability of themodel to simulate performance characteristics of a DOC-CPFaftertreatment system at different engine operating conditions forvarying rates of NO₂-assisted and O₂-assisted PM oxidationreactions for passive oxidation and active regeneration engineconditions

Notes:

Vendor supplied data

Publisher Number:

2013-01-1574

Access Restriction:

Restricted for use by site license