Combustion analysis of a light duty diesel engine using oxygen-enriched and humidified combustion air

The present work presents the results of 3D CFD combustion simulations of a current production 4-cylinder turbocharged Diesel engine using oxygen-enriched and humidified combustion air. Enriched Air (EA) is supposed to be produced by desorption from water, exploiting the different Henry constants of...

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Main Authors: Pirola Carlo, Rinaldini Carlo A., Galli Federico, Manenti Flavio, Milani Massimo, Montorsi Luca
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/42/e3sconf_asee18_00061.pdf
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author Pirola Carlo
Rinaldini Carlo A.
Galli Federico
Manenti Flavio
Milani Massimo
Montorsi Luca
author_facet Pirola Carlo
Rinaldini Carlo A.
Galli Federico
Manenti Flavio
Milani Massimo
Montorsi Luca
author_sort Pirola Carlo
collection DOAJ
description The present work presents the results of 3D CFD combustion simulations of a current production 4-cylinder turbocharged Diesel engine using oxygen-enriched and humidified combustion air. Enriched Air (EA) is supposed to be produced by desorption from water, exploiting the different Henry constants of N2 and O2. Simulation results show that EA permits to increase the engine thermal efficiency (up to 10%) and drastically reduces soot emissions but increases in-cylinder peak pressure and NOx emissions. Combustion air humidification helps to reduce NOx increment, without losing the advantage in terms of thermal efficiency and in soot reduction, even if NOx emissions cannot be reported to the base case values.
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spelling doaj.art-4317b3c8f73a4995b73df3077d04d6432022-12-21T20:24:56ZengEDP SciencesE3S Web of Conferences2267-12422019-01-011160006110.1051/e3sconf/201911600061e3sconf_asee18_00061Combustion analysis of a light duty diesel engine using oxygen-enriched and humidified combustion airPirola Carlo0Rinaldini Carlo A.1Galli Federico2Manenti Flavio3Milani Massimo4Montorsi Luca5Università degli Studi di Milano, Dipartimento di ChimicaUniversità di Modena e Reggio Emilia, Dipartimento Ingegneria “Enzo Ferrari”Università degli Studi di Milano, Dipartimento di ChimicaPolitecnico di Milano, Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”Università di Modena e Reggio Emilia, Dipartimento di Scienze e Metodi per l’IngegneriaUniversità di Modena e Reggio Emilia, Dipartimento di Scienze e Metodi per l’IngegneriaThe present work presents the results of 3D CFD combustion simulations of a current production 4-cylinder turbocharged Diesel engine using oxygen-enriched and humidified combustion air. Enriched Air (EA) is supposed to be produced by desorption from water, exploiting the different Henry constants of N2 and O2. Simulation results show that EA permits to increase the engine thermal efficiency (up to 10%) and drastically reduces soot emissions but increases in-cylinder peak pressure and NOx emissions. Combustion air humidification helps to reduce NOx increment, without losing the advantage in terms of thermal efficiency and in soot reduction, even if NOx emissions cannot be reported to the base case values.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/42/e3sconf_asee18_00061.pdf
spellingShingle Pirola Carlo
Rinaldini Carlo A.
Galli Federico
Manenti Flavio
Milani Massimo
Montorsi Luca
Combustion analysis of a light duty diesel engine using oxygen-enriched and humidified combustion air
E3S Web of Conferences
title Combustion analysis of a light duty diesel engine using oxygen-enriched and humidified combustion air
title_full Combustion analysis of a light duty diesel engine using oxygen-enriched and humidified combustion air
title_fullStr Combustion analysis of a light duty diesel engine using oxygen-enriched and humidified combustion air
title_full_unstemmed Combustion analysis of a light duty diesel engine using oxygen-enriched and humidified combustion air
title_short Combustion analysis of a light duty diesel engine using oxygen-enriched and humidified combustion air
title_sort combustion analysis of a light duty diesel engine using oxygen enriched and humidified combustion air
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/42/e3sconf_asee18_00061.pdf
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