6533b828fe1ef96bd1287b11
RESEARCH PRODUCT
Development of a combined solver to model transport and chemical reactions in catalytic wall-flow filters
Alessio AlexiadisRomain EnjalbertFederico AlberiniMohamed Hatem AlloucheMostapha Arianesubject
Exothermic reactionDiesel particulate filterWork (thermodynamics)Diesel particulate filterChemistryGeneral Chemical EngineeringFlow (psychology)Heat and mass transferMechanical engineeringReactive flow02 engineering and technologyGeneral ChemistryMechanicsSolver010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesChemical reactionIsothermal processCatalytic converter0104 chemical sciencesMass transfer0210 nano-technologyCFDdescription
Abstract In this work, we develop a non-isothermal model for diesel particulate filters including exothermic and competing chemical reactions. We begin with an isothermal, single-reaction model and we gradually increase its complexity. By comparing various models, we aim at establishing the minimum degree of complexity required to effectively model the system under investigation. Based on the numerical simulations, we conclude that isothermal models are adequate only if the temperature of the catalyst is, at all times, completely below or completely above a critical temperature. However, if the goal is to predict the critical temperature, only non-isothermal models should be used. The results with competing reactions, on the other hand, show that the presence of competing reactions does not affect significantly the overall conversion in the filter.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-01 |