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dc.contributor.authorKočí, Petr
dc.contributor.authorIsoz, Martin
dc.contributor.authorPlachá, Marie
dc.contributor.authorArvajová, Adéla Buzkova
dc.contributor.authorVáclavík, Marek
dc.contributor.authorSvoboda, Miloš
dc.contributor.authorPrice, Emily
dc.contributor.authorNovák, Vladimír
dc.contributor.authorThompsett, David
dc.date.accessioned2019-06-03T10:00:16Z-
dc.date.available2019-06-03T10:00:16Z-
dc.date.issued2019
dc.identifier.citationKOČÍ, P., ISOZ, M., PLACHÁ, M., ARVAJOVÁ, A. B., VÁCLAVÍK, M., SVOBODA, M., PRICE, E., NOVÁK, V., THOMPSETT, D. 3D reconstruction and pore-scale modeling of coated catalytic filters for automotive exhaust gas aftertreatment. Catalysis today, 2019, roč. 320, č. JAN 15 2019, s. 165-174. ISSN 0920-5861.en
dc.identifier.issn0920-5861
dc.identifier.uri2-s2.0-85039838260
dc.identifier.urihttp://hdl.handle.net/11025/34747
dc.description.abstractTato publikace prezentuje nově vyvinutou metodologii simulace toku, difuze a reakce na úrovni pórů v katalytických filtrech s aktivní vrstvou. 3D morfologie porézní stěny a aktuální distribuce katalytického materiálu je rekonstruována ze snímků z rentgenové tomografie (XRT) a dále validována pomocí rtuťové porozimetrie (MIP). Rekonstruovaná geometrie je posléze transformována na simulační síť programu OpenFOAM. Tok volnými póry i katalytickou vrstvou je simulován pomocí rešiče SimpleFoam, zatímco námi vyvinutý řešič je použit pro simulaci difuze a reakce jednotlivých složek.cs
dc.format10 s.cs
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherElsevieren
dc.rightsPlný text není přístupný.cs
dc.rights© Elsevieren
dc.subjectKatalyzátorcs
dc.subjectFiltrcs
dc.subjectRentgenová tomografiecs
dc.subjectMatematické modelovánícs
dc.subjectCFDcs
dc.subjectReakcecs
dc.title3D reconstruction and pore-scale modeling of coated catalytic filters for automotive exhaust gas aftertreatmenten
dc.title.alternative3D rekonstrukce a matematické modelování katalytických filtrů s aktivní vrstvou pro čištění výfukových plynůcs
dc.typečlánekcs
dc.typearticleen
dc.rights.accessclosedAccessen
dc.type.versionpublishedVersionen
dc.description.abstract-translatedThis paper introduces a newly developed methodology for the pore-scale simulation of flow, diffusion and reaction in the coated catalytic filter. 3D morphology of the porous filter wall including the actual distribution of catalytic material is reconstructed from X-ray tomography (XRT) images and further validated with the mercury intrusion porosimetry (MIP). The reconstructed medium is then transformed into simulation mesh for OpenFOAM. Flow through free pores in the substrate as well as through the coated zones is simulated by porous SimpleFoam solver, while an in-house developed solver is used for component diffusion and reactions. Three cordierite filter samples with different distribution of aluminabased coating ranging from in-wall to onwall are examined. Velocity, pressure and component concentration profiles are calculated enabling the prediction of permeability and component conversion depending on the actual microstructure of the wall. The simulation results suggest that the gas predominantly flows through remaining free pores in the filter wall and cracks in the coated layer. The mass transport into the coated domains inside the filter wall is enabled mainly by diffusion. Large domains of compact catalytic coating covering complete channel wall result in a significant increase of pressure drop as the local permeability of the coating is two orders of magnitude smaller than that of bare filter wall.en
dc.subject.translatedCatalysten
dc.subject.translatedFilteren
dc.subject.translatedX-ray tomographyen
dc.subject.translatedMathematical modelingen
dc.subject.translatedCFDen
dc.subject.translatedReactionen
dc.identifier.doi10.1016/j.cattod.2017.12.025
dc.type.statusPeer-revieweden
dc.identifier.document-number448295200018
dc.identifier.obd43926069
dc.project.IDLO1402/CENTEM+cs
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