Title: Multiscale Modeling and Analysis of Pressure Drop Contributions in Catalytic Filters
Authors: Leskovjan, Martin
Němec, Jan
Plachá, Marie
Kočí, Petr
Isoz, Martin
Svoboda, Miloš
Novák, Vladimír
Price, Emily
Thompsett, David
Citation: LESKOVJAN, M., NĚMEC, J., PLACHÁ, M., KOČÍ, P., ISOZ, M., SVOBODA, M., NOVÁK, V., PRICE, E., THOMPSETT, D. Multiscale Modeling and Analysis of Pressure Drop Contributions in Catalytic Filters. Industrial & engineering chemistry research, 2021, roč. 60, č. 18, s. 6512-6524. ISSN 0888-5885.
Issue Date: 2021
Publisher: American Chemical Society
Document type: článek
URI: 2-s2.0-85103518245
ISSN: 0888-5885
Keywords in different language: Coating materials;Friction;Catalysts;Permeability;Catalyst supports
Abstract in different language: Catalytic monolith filters with a honeycomb structure represent a key component of modern automotive exhaust gas aftertreatment systems. In this paper, we present and validate a multiscale modeling methodology for the prediction of filter pressure loss depending on the monolith channel geometry as well as the microscopic structure of the wall including catalytic coating. The approach is based on the combination of a 3D pore-scale model of flow through the wall reconstructed from X-ray tomography and a 1D+1D model of the filter channels. Several cordierite and SiC filter samples with varying substrate pore sizes and catalyst distributions are examined. A series of experiments are performed at different gas flow rates and filter lengths in order to validate the model predictions and to distinguish individual pressure drop contributions (inlet and outlet, channel, and wall). The predicted pressure drop shows a strong impact of the coating location and agrees well with the experiments.
Rights: Plný text není přístupný.
© American Chemical Society
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