Extending the Operating Region of Multi-Cylinder Partially Premixed Combustion using High Octane Number Fuel

Magnus Lewander, Bengt Johansson, Per Tunestål

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

15 Citations (SciVal)

Abstract

Partially Premixed Combustion (PPC) is a combustion concept by which it is possible to get low smoke and NOx emissions simultaneously. PPC requires high EGR levels to extend the ignition delay so that air and fuel mix prior to combustion to a larger extent than with conventional diesel combustion. This paper investigates the operating region of single injection PPC for three different fuels; Diesel, low octane gasoline with similar characteristics as diesel and higher octane standard gasoline. Limits in emissions are defined and the highest load that fulfills these requirements is determined. The investigation shows the benefits of using high octane number fuel for Multi-Cylinder PPC. With high octane fuel the ignition delay is made longer and the operating region of single injection PPC can be extended significantly. Experiments are carried out on a multi-cylinder heavy-duty engine at low, medium and high speed.
Original languageEnglish
Title of host publicationSAE Technical Paper
PublisherSociety of Automotive Engineers
DOIs
Publication statusPublished - 2011 Apr 12
EventSAE World Congress & Exhibition, 2011 - Detroit, Michigan, United States
Duration: 2011 Apr 122011 Apr 14

Publication series

NameSAE Technical Paper Series
PublisherSAE International
ISSN (Print)0148-7191

Conference

ConferenceSAE World Congress & Exhibition, 2011
Country/TerritoryUnited States
CityDetroit, Michigan
Period2011/04/122011/04/14

Subject classification (UKÄ)

  • Other Mechanical Engineering

Keywords

  • Internal Combustion Engines
  • Partially Premixed Combustion
  • Compression Ignition

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