An Experimental Investigation of Fuel Reactivity Controlled PCCI Combustion in a Heavy-Duty Engine

This study investigates the potential of controlling premixed charge compression ignition (PCCI) combustion strategies by varying fuel reactivity. In-cylinder fuel blending using port fuel injection of gasoline and early cycle, direct-injection of diesel fuel was used for combustion phasing control at a medium engine load of 9 bar net IMEP and was also found to be effective to prevent excessive rates of pressure rise. Parameters used in the experiments were guided from the KIVA-CHEMKIN code with a reduced primary reference fuel (PRF) mechanism including injection timings, fuel percentages, and intake valve closing (IVC) timings for dual-fuel PCCI combustion. The engine experiments were conducted with a conventional common rail injector (i.e., wide angle and large nozzle hole) and demonstrated control and versatility of dual-fuel PCCI combustion with the proper fuel blend, SOI and IVC timings. For example, at the 9 bar operating point, NOx and soot were 0.012 g/kW-hr and 0.008 g/kW-hr, respectively. That is, US EPA 2010 heavy-duty NOx and PM emissions regulations are easily met without after-treatment, while achieving 53% net indicated thermal efficiency.

• Record URL:
  • https://doi.org/10.4271/2010-01-0864
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19463936
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Hanson, Reed M
  • Kokjohn, Sage L
  • Splitter, Derek A
  • Reitz, Rolf D
• Conference:
  • SAE 2010 World Congress & Exhibition
  • Location: Detroit Michigan, United States
  • Date: 2010-4-13 to 2010-4-15
• Publication Date: 2010-4-12

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 700-716
• Serial:
  • SAE International Journal of Engines
  • Volume: 3
  • Issue Number: 1
  • Publisher: SAE International
  • ISSN: 1946-3936
  • EISSN: 1946-3944
  • Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-03/

Subject/Index Terms

• TRT Terms: Combustion; Compression ignition engines; Diesel fuels; Environmental policy; Environmental protection; Fuel injection; Nitrogen oxides; Particulates; Pressure
• Subject Areas: Energy; Environment; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01681107
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2010-01-0864
• Files: TRIS, SAE
• Created Date: Sep 20 2018 4:34PM