ANALYSIS OF THE TEMPERATURE PULSATIONS OF THE EXHAUST GAS BEFORE THE THREE-WAY CATALYST

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU138435" target="_blank" >RIV/00216305:26210/20:PU138435 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.engmech.cz/im/doc/EM2020_proceedings.pdf" target="_blank" >https://www.engmech.cz/im/doc/EM2020_proceedings.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21495/5896-3-078" target="_blank" >10.21495/5896-3-078</a>

Jazyk výsledku

angličtina

Název v původním jazyce

ANALYSIS OF THE TEMPERATURE PULSATIONS OF THE EXHAUST GAS BEFORE THE THREE-WAY CATALYST

Popis výsledku v původním jazyce

When using combustion engine such as common gasoline engine, exhaust gas temperature pulsation due to dynamic changes in the operation condition often occurs. The most problematic point in designing the aftertreatment system is the light-off temperature of the three-way catalyst. The aim of this article is to describe the effect of the load and speed of the engine, which are the most problematic and frequently changing conditions during the real drive. A simulation of the exhaust gas temperature was carried out in order to investigate the impact on the effectivity of the catalyst. The simulated engine was inspired in turbocharged engine VW 1,5 TSI EVO. The exhaust gas temperature was calculated for full load steady state conditions, no load steady state conditions and real drive transient conditions. The results show that the effect of the dynamic changes of the load and speed of the engine is significant for determine the temperature pulsations in exhaust gas. These pulsations have major effect on the effectivity of the catalyst. Next research will be focused on remove these disadvantages with usage of heat storage system based on PCM materials inserted between the turbine and the catalyst.

Název v anglickém jazyce

ANALYSIS OF THE TEMPERATURE PULSATIONS OF THE EXHAUST GAS BEFORE THE THREE-WAY CATALYST

Popis výsledku anglicky

When using combustion engine such as common gasoline engine, exhaust gas temperature pulsation due to dynamic changes in the operation condition often occurs. The most problematic point in designing the aftertreatment system is the light-off temperature of the three-way catalyst. The aim of this article is to describe the effect of the load and speed of the engine, which are the most problematic and frequently changing conditions during the real drive. A simulation of the exhaust gas temperature was carried out in order to investigate the impact on the effectivity of the catalyst. The simulated engine was inspired in turbocharged engine VW 1,5 TSI EVO. The exhaust gas temperature was calculated for full load steady state conditions, no load steady state conditions and real drive transient conditions. The results show that the effect of the dynamic changes of the load and speed of the engine is significant for determine the temperature pulsations in exhaust gas. These pulsations have major effect on the effectivity of the catalyst. Next research will be focused on remove these disadvantages with usage of heat storage system based on PCM materials inserted between the turbine and the catalyst.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

ENGINEERING MECHANICS

ISBN

978-80-214-5896-3

ISSN

1805-8248

e-ISSN

—

Počet stran výsledku

4

Strana od-do

78-81

Název nakladatele

BRNO UNIV TECHNOL, FAC MECHANICAL ENGINEERING

Místo vydání

BRNO

Místo konání akce

Online

Datum konání akce

24. 11. 2020

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000667956100012