Particle accumulation model in 3D reconstructed wall of a catalytic filter validated with time-resolved X-ray tomography

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F24%3A00577856" target="_blank" >RIV/61388998:_____/24:00577856 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/24:43928674 RIV/49777513:23640/24:43970478

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0016236123022172" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0016236123022172</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fuel.2023.129603" target="_blank" >10.1016/j.fuel.2023.129603</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Particle accumulation model in 3D reconstructed wall of a catalytic filter validated with time-resolved X-ray tomography

Popis výsledku v původním jazyce

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/????-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.

Název v anglickém jazyce

Particle accumulation model in 3D reconstructed wall of a catalytic filter validated with time-resolved X-ray tomography

Popis výsledku anglicky

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/????-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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/GA22-12227S" target="_blank" >GA22-12227S: Počítačový návrh katalytických filtrů zohledňující vliv zachycených částic</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Fuel

ISSN

0016-2361

e-ISSN

1873-7153

Svazek periodika

356

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

129603

Kód UT WoS článku

001076550600001

EID výsledku v databázi Scopus

2-s2.0-85168823812