Effects of Fuel Injection Rate Shaping on Combustion and Emission Formation in Intermittent Spray

The effects of fuel injection rate shaping and injection pressure on flame temperature and soot production in intermittent spray combustion were investigated. Two-color technique was applied to the luminous image of free spray flame captured by an ICCD camera to evaluate the 2-D temperature and soot distributions in flame. In addition to the experiments, CFD calculations using KIVA-3V code were carried out and compared with the experimental data. The experimental and computational results showed that fuel injection rate shaping affected the temporal change of flame temperature and the emission of NOx. The optimal mode of injection rate shaping, in terms of NOx reduction, varied according to injection pressure. Concerning the soot production, fuel injection rate shaping affected the regions of soot production and the injection pressure affected soot oxidation especially in the latter stage of combustion. The higher injection pressure was effective to oxide soot, and could suppress soot emission due to the enhancement of soot oxidation.

• Record URL:
  • https://doi.org/10.4271/2002-01-1159
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Wakisaka, Yoshifumi
  • Azetsu, Akihiko
• Conference:
  • SAE 2002 World Congress & Exhibition
  • Location: Detroit Michigan, United States
  • Date: 2002-3-4 to 2002-3-7
• Publication Date: 2001-9-24

Language

• English

Media Info

• Media Type: Web
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Combustion; Fuel injection; Nitrogen oxides; Pollutants; Pressure; Production
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01799894
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2002-01-1159
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:20AM