Experimental validation of extended NO and Soot model for advanced HD Diesel Engine Combustion

X.L.J. Seykens, R.S.G. Baert, L.M.T. Somers, F.P.T. Willems

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)
112 Downloads (Pure)

Abstract

A computationally efficient engine model is developed based on an extended NO emission model and state-of-the-art soot model. The model predicts exhaust NO and soot emission for both conventional and advanced, high-EGR (up to 50 %), heavy-duty DI diesel combustion. Modeling activities have aimed at limiting the computational effort while maintaining a sound physical/chemical basis. The main inputs to the model are the fuel injection rate profile, in-cylinder pressure data and trapped in-cylinder conditions together with basic fuel spray information. Obtaining accurate values for these inputs is part of the model validation process which is thoroughly described. Modeling results are compared with single-cylinder as well as multi-cylinder heavy-duty diesel engine data. NO and soot level predictions show good agreement with measurement data for conventional and high-EGR combustion with conventional timing.
Original languageEnglish
Pages (from-to)609-619
JournalSAE International Journal of Engines
Volume2
Issue number1
Publication statusPublished - 2009

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