On the dynamic behavior of automotive catalysts
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A full transient three-dimensional study on the effect of pulsating exhaust flow under real running condition on the thermal and chemical behavior of closed-coupled catalyst
2014, Chemical Engineering ScienceCitation Excerpt :There have been performing a lot of numerical studies related to catalytic converter. A single channel model (Oh and Cavendish, 1982; Kirchner and Eigenberger,1997) was the first numerical model which was developed to investigate the transient response of heat and mass transfer with chemical reaction within the monolith. In recent, a single channel model accounting for the species diffusion inside the washcoat using the effectiveness factor was developed (Santos and Costa, 2009).
Optical frequency domain reflectometry measurements of spatio-temporal temperature inside catalytic reactors: Applied to study wrong-way behavior
2013, Chemical Engineering JournalCitation Excerpt :These experiments are, to the best of our knowledge, the first experimental report of the wrong-way behavior following an increase in the feed flow rate to a heterogeneous catalytic reactor. Our experimental observations verified earlier numerical simulation predictions of the wrong-way behavior as a result of flow rate acceleration [28,29]. The amplitude of the transient temperature rise following a decrease in the feed temperature was much larger (37 °C) than that caused by an increase in the feed flow rate (9 °C).
Modeling and simulation of a smart catalytic converter combining NOx storage, ammonia production and SCR
2009, Chemical Engineering JournalOptimal design of axial noble metal distribution for improving dual monolithic catalytic converter performance
2009, Chemical Engineering ScienceArtificial neural network based modeling of heated catalytic converter performance
2005, Applied Thermal EngineeringCFD simulation of the effect of upstream flow distribution on the light-off performance of a catalytic converter
2005, Energy Conversion and Management