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Statements

Subject Item
n2:RIV%2F60461373%3A22340%2F07%3A00019413%21RIV08-MSM-22340___
rdf:type
skos:Concept n16:Vysledek
dcterms:description
A heterogeneous, spatially 1D, physically and chemically based mathematical model of the catalytic monolith has been developed. A global reaction kinetic approach has been chosen to describe reaction conversions on the washcoat surface. Reaction kinetic parameters have been evaluated from a series of laboratory experiments. The model was validated with the data from passenger car dynamometer test bench and heavy-duty commercial vehicle engine test bench measurements. The results show the applicability of the model over this wide range in size and operating conditions, underlining the suitability of the chosen modelling approach to the requirements. Series of simulations have been carried out to study the effects of varying operation conditions on the converter performance and overall conversions. Byl vyvinut heterogenní, prostorově jednorozměrný, matematický model katalytického monolitu, založený na popisu fyzikálních a chemických dějů. Pro popis reakcí na katalytickém povrchu byla zvolena celková kinetika. Rychlostní parametry reakcí byly vyhodnoceny z řady laboratorních experimentů. Platnost modelu byla ověřena pomocí dat získaných jak z osobního a nákladního automobilu na dynamické brzdě. Výsledky ukazují použitelnost modelu v širokém rozsahu rozměrů a provozních podmínek a vhodnost zvoleného přístupu k daným účelům. Byly provedeny simulace mapující vliv různých provozních podmínek na provoz reaktoru a dosahované konverse. A heterogeneous, spatially 1D, physically and chemically based mathematical model of the catalytic monolith has been developed. A global reaction kinetic approach has been chosen to describe reaction conversions on the washcoat surface. Reaction kinetic parameters have been evaluated from a series of laboratory experiments. The model was validated with the data from passenger car dynamometer test bench and heavy-duty commercial vehicle engine test bench measurements. The results show the applicability of the model over this wide range in size and operating conditions, underlining the suitability of the chosen modelling approach to the requirements. Series of simulations have been carried out to study the effects of varying operation conditions on the converter performance and overall conversions.
dcterms:title
Vývoj a použití modelu pro katalysátor s ukládáním a redukcí NOx Development and application of a model for a NOx storage and reduction catalyst Development and application of a model for a NOx storage and reduction catalyst
skos:prefLabel
Development and application of a model for a NOx storage and reduction catalyst Vývoj a použití modelu pro katalysátor s ukládáním a redukcí NOx Development and application of a model for a NOx storage and reduction catalyst
skos:notation
RIV/60461373:22340/07:00019413!RIV08-MSM-22340___
n3:strany
5357-5363
n3:aktivita
n14:S
n3:aktivity
S
n3:cisloPeriodika
18-20
n3:dodaniDat
n10:2008
n3:domaciTvurceVysledku
n11:4562909 n11:4292367 n11:2115204
n3:druhVysledku
n13:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
416794
n3:idVysledku
RIV/60461373:22340/07:00019413
n3:jazykVysledku
n8:eng
n3:klicovaSlova
NOx storage; NOx reduction; catalyst; exhaust gas; mathematical modeling
n3:klicoveSlovo
n4:catalyst n4:NOx%20reduction n4:NOx%20storage n4:mathematical%20modeling n4:exhaust%20gas
n3:kodStatuVydavatele
IE - Irsko
n3:kontrolniKodProRIV
[813A1CE7B962]
n3:nazevZdroje
Chemical Engineering Science
n3:obor
n17:CI
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
6
n3:rokUplatneniVysledku
n10:2007
n3:svazekPeriodika
62
n3:tvurceVysledku
Guthenke, A. Weibel, M. Kočí, Petr Kubíček, Milan Marek, Miloš Chatterjee, D.
s:issn
0009-2509
s:numberOfPages
7
n9:organizacniJednotka
22340