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Effect of EGR on Autoignition, Combustion, Regulated Emissions, and Aldehydes in DI Diesel Engines

Nitu, B.; Singh, I.; Badreshany, K.; Zhong, L.; Henein, N.; Bryzik, W.

Authors

B. Nitu

I. Singh

L. Zhong

N. Henein

W. Bryzik



Abstract

In view of the new regulations for diesel engine emissions, EGR is used to reduce the NOx emissions. Diluting the charge with EGR affects the autoignition, combustion as well as the regulated and unregulated emissions of diesel engines, under different operating conditions. This paper presents the results of an investigation on the effect of EGR on the global activation energy and order of the autoignition reactions, premixed and mixing-controlled combustion fractions, the regulated (unburned hydrocarbons, NOx, CO and particulates), aldehydes, CO₂ and HC speciation. The experiments were conducted on two different direct injection, four-stroke- cycle, single-cylinder diesel engines over a wide range of operating conditions and EGR ratios.

Citation

Nitu, B., Singh, I., Badreshany, K., Zhong, L., Henein, N., & Bryzik, W. (2002). Effect of EGR on Autoignition, Combustion, Regulated Emissions, and Aldehydes in DI Diesel Engines. SAE Technical Papers, https://doi.org/10.4271/2002-01-1153

Journal Article Type Article
Online Publication Date Jan 11, 2002
Publication Date Jan 11, 2002
Deposit Date Sep 16, 2013
Journal SAE Technical Papers
Print ISSN 0148-7191
Electronic ISSN 0096-5170
Publisher SAE International
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.4271/2002-01-1153
Public URL https://durham-repository.worktribe.com/output/1469766