Experimental validation of extended NO and soot model for advanced HD diesel engine combustion

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A computationally efficient engine model is developedbased on an extended NO emission model and state-ofthe-art soot model. The model predicts exhaust NO andsoot emission for both conventional and advanced, high-EGR (up to 50 %), heavy-duty DI diesel combustion.Modeling activities have aimed at limiting thecomputational effort while maintaining a soundphysical/chemical basis. The main inputs to the modelare the fuel injection rate profile, in-cylinder pressuredata and trapped in-cylinder conditions together withbasic fuel spray information. Obtaining accurate valuesfor these inputs is part of the model validation processwhich is thoroughly described. Modeling results arecompared with single-cylinder as well as multi-cylinderheavy-duty diesel engine data. NO and soot levelpredictions show good agreement with measurementdata for conventional and high-EGR combustion withconventional timing.
Original languageEnglish
Title of host publicationModeling of SI and Diesel Engines, 2009 : SAE World Congress, 20-23 April 2009 Detroit, USA
Place of PublicationWarrendale, Pa
PublisherSociety of Automotive Engineers (SAE)
ISBN (Print)978-0-7680-2140-0
Publication statusPublished - 2009

Publication series

NameSAE International Journal of Engines
ISSN (Print)1946-3936

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