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Transient simulation of a catalytic converter for a dual fuel engine
Author(s) -
Liu Benlin,
Checkel M. David,
Hayes Robert E.,
Zheng Ming,
Mirosh Edward
Publication year - 2000
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450780315
Subject(s) - catalytic converter , transient (computer programming) , honeycomb , materials science , diesel engine , nuclear engineering , plug flow , automotive engineering , transient response , flow (mathematics) , monolith , catalysis , simulation , mechanics , engineering , computer science , chemistry , composite material , internal combustion engine , electrical engineering , physics , biochemistry , operating system
An experimental and modelling study was performed for a catalytic converter attached to a natural gas/diesel dual fuel engine. The catalytic converter was a ceramic monolith honeycomb substrate coated with a washcoat of catalyst. A multiple segmented design of converter was used. This paper describes the application of a one‐dimensional finite element model for the transient and steady state operation of this converter. The model is a single channel model. The laminar flow was approximated using a dispersed plug flow model. The chemical kinetics were simulated using LHHW type expressions. Comparison of simulated results are made with experimental results for heating and cooling cycles that resulted from speed and load changes on the engine. These comparisons showed a maximum difference between experimental and predicted emission levels of about 10%.