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SFC Benefit With Split Injection in Two-Stroke Diesel Engine

[+] Author Affiliations
Manoj Gokhale, Bhaskar Tamma, Roy J. Primus

GE Global Research, Karnataka, India

Benzi John

NTU, Singapore, Singapore

Paper No. ICES2009-76022, pp. 497-503; 7 pages
doi:10.1115/ICES2009-76022
From:
  • ASME 2009 Internal Combustion Engine Division Spring Technical Conference
  • ASME 2009 Internal Combustion Engine Division Spring Technical Conference
  • Milwaukee, Wisconsin, USA, May 3–6, 2009
  • Conference Sponsors: Internal Combustion Engine Division
  • ISBN: 978-0-7918-4340-6 | eISBN: 978-0-7918-3843-3
  • Copyright © 2009 by ASME

abstract

The influence of split-injection on engine performance is studied using system and in-cylinder simulation of a two-stroke medium speed diesel engine. System level models for the engine and fuel system and a multi-dimension CFD model for the combustion chamber were developed and calibrated with experimental data. Calibration of these models from the available test data is discussed and calibration results are presented. The SFC and NOx predictions show good sensitivity to injection timing variation. These calibrated models were then used to simulate split injection through the modification of the fuel injector. Split injection achieved through this modification results in fuel savings while maintaining same NOx levels.

Copyright © 2009 by ASME
Topics: Diesel engines

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