Two-stage Turbocharged Large-Bore Gas SI ICE – Operation under Different NOx Level Conditions

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Two-stage Turbocharged Large-Bore Gas SI ICE – Operation under Different NOx Level Conditions

Popis výsledku v původním jazyce

Large-bore gas SI ICEs are supposed to operate under more strict conditions in terms of NOx level. Currently, the TA Luft norm is being considered while typical BMEP levels are between 22-28 bars. It is expected, that NOx would have to drop significantly (down to 50% or even 20% of the amount based on TA Luft) while engine BMEP is supposed to be increased beyond 30 bars. The paper is based on 0-D/1-D simulations while using the experience gained from older research projects between PBS Turbo and Czech Technical University in Prague. The main goal is to study the influence of different operating conditions (NOx level, BMEP level, control means, ambient conditions, and fuel composition while considering both hydrogen and CO2) on both ICE performance and turbocharger operation. Complex optimizations were carried out to achieve optimal solution for every considered operating case. General conclusions are drawn while focusing on the limits of two-stage turbocharging concept.

Název v anglickém jazyce

Two-stage Turbocharged Large-Bore Gas SI ICE – Operation under Different NOx Level Conditions

Popis výsledku anglicky

Large-bore gas SI ICEs are supposed to operate under more strict conditions in terms of NOx level. Currently, the TA Luft norm is being considered while typical BMEP levels are between 22-28 bars. It is expected, that NOx would have to drop significantly (down to 50% or even 20% of the amount based on TA Luft) while engine BMEP is supposed to be increased beyond 30 bars. The paper is based on 0-D/1-D simulations while using the experience gained from older research projects between PBS Turbo and Czech Technical University in Prague. The main goal is to study the influence of different operating conditions (NOx level, BMEP level, control means, ambient conditions, and fuel composition while considering both hydrogen and CO2) on both ICE performance and turbocharger operation. Complex optimizations were carried out to achieve optimal solution for every considered operating case. General conclusions are drawn while focusing on the limits of two-stage turbocharging concept.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20303 - Thermodynamics

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 statě ve sborníku

KOKA 2020 Proceedings: 51st International Scientific Conference of the Czech and Slovak Universities and Institutions Dealing with Motor Vehicles and Internal Combustion Engines Research

ISBN

978-80-01-06744-4

ISSN

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e-ISSN

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Počet stran výsledku

14

Strana od-do

158-171

Název nakladatele

ústav automobilů, spalovacích motorů a kolejových vozidel

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

9. 9. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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