Pore-scale filtration model for coated catalytic filters in automotive exhaust gas aftertreatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F20%3A43921251" target="_blank" >RIV/60461373:22340/20:43921251 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388998:_____/20:00535255 RIV/49777513:23640/20:43959509

Výsledek na webu

<a href="https://doi.org/10.1016/j.ces.2020.115854" target="_blank" >https://doi.org/10.1016/j.ces.2020.115854</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ces.2020.115854" target="_blank" >10.1016/j.ces.2020.115854</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pore-scale filtration model for coated catalytic filters in automotive exhaust gas aftertreatment

Popis výsledku v původním jazyce

In this paper we explore the impact of catalyst distribution on the filtration efficiency of automotive exhaust gas filters (GPF and DPF). The structure of filter wall is reconstructed from 3D X-ray tomography (XRT), including spatial distribution of catalytic material. The filtration process is simulated by a custom solver developed and implemented in OpenFOAM using Lagrangian approach for soot particles. GPF samples based on a cordierite substrate are examined with the same amount but different distribution of washcoat, ranging from in-wall to on-wall arrangement. Clean filtration efficiencies are predicted depending on gas velocity and particle size. Brownian motion strongly improves the filtration of particles smaller than 50 nm. On-wall catalyst layer significantly increases the clean filtration efficiency. The obtained results are compared to experimental data from engine test bench. (C) 2020 Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Pore-scale filtration model for coated catalytic filters in automotive exhaust gas aftertreatment

Popis výsledku anglicky

In this paper we explore the impact of catalyst distribution on the filtration efficiency of automotive exhaust gas filters (GPF and DPF). The structure of filter wall is reconstructed from 3D X-ray tomography (XRT), including spatial distribution of catalytic material. The filtration process is simulated by a custom solver developed and implemented in OpenFOAM using Lagrangian approach for soot particles. GPF samples based on a cordierite substrate are examined with the same amount but different distribution of washcoat, ranging from in-wall to on-wall arrangement. Clean filtration efficiencies are predicted depending on gas velocity and particle size. Brownian motion strongly improves the filtration of particles smaller than 50 nm. On-wall catalyst layer significantly increases the clean filtration efficiency. The obtained results are compared to experimental data from engine test bench. (C) 2020 Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemical Engineering Science

ISSN

0009-2509

e-ISSN

—

Svazek periodika

226

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

115854

Kód UT WoS článku

000573581900011

EID výsledku v databázi Scopus

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