The Effect of Piston Bowl and Spray Configuration on Diesel Combustion and Emissions

Authors

Bassem H. Ramadan, Kettering UniversityFollow
Charles L. Gray
Fakhri J. Hamady
Cody Squibb
Harold J. Schock

Document Type

Conference Proceeding

Publication Date

10-5-2011

Publication Title

Internal Combustion Engine Division Fall Technical Conference

Conference Name

ASME 2011 Internal Combustion Engine Division Fall Technical Conference

Abstract

A numerical and experimental study of the effect of piston bowl and spray configuration on diesel combustion and emissions has been conducted. The objective of this study is to gain better understanding of the effect of the piston bowl shape and fuel injector configuration on fuel-air mixing, combustion, and emissions in a diesel engine. Ideally, a uniform fuel-air mixture in the cylinder is desired to prevent the formation of regions containing a rich mixture, where soot is usually formed, and regions of lean mixtures, where nitrogen oxides are formed. Different piston bowl shapes and fuel injectors (number of nozzles, spray angle) have been considered and simulated using computational fluid dynamics and experiments. CFD calculations of fuel mass fraction, and measurements of cylinder pressure and emissions species are included. The results show that computer simulations coupled with experiments provide insight into the interactions between fluid flow, fuel-air mixing, combustion, and emissions.

Comments

https://doi.org/10.1115/ICEF2011-60180

Rights Statement

© 2011 by ASME

Recommended Citation

Ramadan, Bassem H.; Gray, Charles L.; Hamady, Fakhri J.; Squibb, Cody; and Schock, Harold J., "The Effect of Piston Bowl and Spray Configuration on Diesel Combustion and Emissions" (2011). Mechanical Engineering Presentations And Conference Materials. 113.
https://digitalcommons.kettering.edu/mech_eng_conference/113