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Multiscale Modeling and Analysis of Pressure Drop Contributions in Catalytic Filters
| Citace: |
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
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| Druh: | ČLÁNEK |
| Jazyk publikace: | eng |
| Anglický název: | Multiscale Modeling and Analysis of Pressure Drop Contributions in Catalytic Filters |
| Rok vydání: | 2021 |
| Autoři: | Martin Leskovjan , Jan Němec , Marie Plachá , doc. Ing. Petr Kočí Ph.D. , Martin Isoz , Ing. Miloš Svoboda Ph.D. , Vladimír Novák , Emily Price , David Thompsett |
| Abstrakt EN: | 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. |
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