Title: Effects of the injection parameters and compression ratio on the emissions of a heavy-duty diesel engine

Authors: Mustafa Yilmaz; Hasan Köten; M. Zafer Gul

Addresses: Marmara University, Engineering Faculty Department of Mechanical Engineering, Istanbul, Turkey ' Marmara University, Engineering Faculty Department of Mechanical Engineering, Istanbul, Turkey ' Marmara University, Engineering Faculty Department of Mechanical Engineering, Istanbul, Turkey

Abstract: Homogenous charge compression ignition (HCCI) cases are compared for improvements on the combustion chamber design of the engine to achieve near zero particulate matter (PM) and NOx emissions. Therefore combustion simulations of the engine have been performed to find out emission generation in the cylinder. The interaction of air motion with high-pressure fuel spray has also been analysed. Finally, a comparison has been made considering the performance of the engine for various configurations such as compression ratio, injection timing, and cone angle. The results are widely in agreement qualitatively with the previous similar experimental and computational studies in the literature.

Keywords: clean diesel combustion; CFD; computational fluid dynamics; fuel spray; injection parameters; narrow angle; particulate matter; NOx emissions; nitrogen oxides; combustion chamber design; diesel engines; heavy duty engines; homogenous charge compression ignition; HCCI engines; vehicle design; simulation; vehicle emissions; compression ratio; injection timing; cone angle; air pollution.

DOI: 10.1504/IJVD.2012.048691

International Journal of Vehicle Design, 2012 Vol.59 No.2/3, pp.147 - 163

Received: 31 Dec 2009
Accepted: 25 May 2010
Published online: 23 Apr 2013 *

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