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Chemical Reactions in the Exhaust System of a Cold‐start Engine
Author(s) -
Chan S. H.,
Hoang D. L.
Publication year - 2000
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/1521-4125(200008)23:8<727::aid-ceat727>3.0.co;2-d
Subject(s) - nox , carbon monoxide , cold start (automotive) , condensation , exhaust gas , catalysis , heat transfer , catalytic converter , heat engine , chemistry , water vapor , secondary air injection , chemical engineering , environmental science , waste management , materials science , thermodynamics , automotive engineering , engineering , organic chemistry , combustion , physics
Transient heat transfer and water condensation in the engine exhaust system have a strong influence on the conversion of carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NO x ) in the three‐way catalytic converter (TWC) of an engine cold‐start. This paper presents the theoretical modeling of heat transfer and chemical reactions of CO, HC, and NO associated with the effects of catalyst surface water vapor condensation, and water evaporation in the entire engine exhaust system fitted with a TWC. The predictive capability of the model is validated successfully with the experimental data.