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This work presents the first-ever control oriented model to predict the thermal dynamics inside a ceria-coated Gasoline Particulate Filter (GPF). By incorporating catalytic reaction kinetics in addition to the carbon to CO2 oxidation reactions, the proposed model predicts the internal GPF temperature during nominal operation and regeneration events. The model utilizes the GPF inlet exhaust gas temperature...
This paper elaborates upon the limitations of using volume-averaged macroscale electrochemical models for lithium-ion batteries, such as the Pseudo-two-Dimensional (P2D) model [1]. To address some of these limitations, an enhanced electrochemical modeling framework that is developed using the homogenization technique is presented in this work. The mass and charge transport equations of the new modeling...
Emission control devices such as gasoline particulate filters (GPFs) are being adopted by vehicle manufacturers to mitigate particulate emissions in gasoline direct injection (GDI) engines. In this paper, we present a multi-scale modeling framework to resolve mass, energy, and momentum transport equations of the exhaust gases in a GPF. Applicability conditions under which the macroscale transport...
In a Lithium-ion battery, the relative importance between the three microscale transport processes, i.e. diffusion, electromigration and heterogeneous reaction, can be quantified using the dimensionless Electric Péclet (Pe) and Damköhler (Da) numbers. By means of homogenization technique, we upscale the pore-scale Poisson-Nernst-Planck equation to the macroscopic scale and formulate a phase diagram...
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