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Particle accumulation model in 3D reconstructed wall of a catalytic filter validated with time-resolved X-ray tomography
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SYSNO ASEP 0577856 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Particle accumulation model in 3D reconstructed wall of a catalytic filter validated with time-resolved X-ray tomography Author(s) Plachá, M. (CZ)
Isoz, Martin (UT-L) ORCID
Kočí, P. (CZ)
Jones, M.P. (GB)
Svoboda, M. (CZ)
Eastwood, D.S. (GB)
York, A.P.E. (GB)Number of authors 7 Article number 129603 Source Title Fuel. - : Elsevier - ISSN 0016-2361
Roč. 356, January (2024)Number of pages 14 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords mathematical modelling ; CFD ; DPF ; GPF ; automotive exhaust gas aftertreatment Subject RIV CI - Industrial Chemistry, Chemical Engineering OECD category Chemical process engineering Method of publishing Limited access Institutional support UT-L - RVO:61388998 UT WOS 001076550600001 EID SCOPUS 85168823812 DOI 10.1016/j.fuel.2023.129603 Annotation A transient pore-scale model of particle deposit formation in 3D microstructure of a catalytic filter wall is introduced. It predicts location of particle deposits, dynamics of their growth, transition from deep to cake filtration regime as well as the impact on flow field, pressure drop and filtration efficiency. The model is validated against time-resolved X-ray tomography (XRT) data acquired during a filtration experiment. The validated model is then used in transient simulations of the soot filtration process in several different microstructures using cordierite filter substrate with varied Pd/𝛾-Al2O3 catalyst distribution. The sample with the coating solely inside the wall pores provides the lowest initial pressure drop but suffers from low clean filtration efficiency and high pressure drop after the cake is formed. The sample with partial on-wall coating achieves not only a higher filtration efficiency but also a lower pressure drop in long-term operation. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2025 Electronic address https://www.sciencedirect.com/science/article/pii/S0016236123022172
Number of the records: 1