NOx reduction in diesel engines using rate shaping and pilot injection

Reduction in NOx and soot in light and medium duty diesel engines and meeting the US emission standards is an important challenge. This paper shows how Injection Rate Shaping (IRS) should be performed to reduce NOx while engine performance and soot formation remain almost constant. Effects of intercooler with and without rate shaping on NOx reduction will be investigated. Results indicated that the rate shaping and pilot/split injection was an effective technique to reduce NOx at some operating condition. Combined effects of intercooler and rate shaping have shown a reduction of NOx by 50% for some operating conditions. At idle condition, a split injection was found to be a good solution for NOx reduction. A combustion simulation computer program was used in this analysis for six different operating conditions. It was found that the cost of modification of the production line is negligible for mass injector production.(A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14709511
• Authors:
  • GHAFFARPOUR, M
  • NOORPOOR, A R
• Publication Date: 2007

Language

• English

Media Info

• Pagination: 17-31
• Serial:
  • International Journal of Automotive Technology and Management
  • Volume: 7
  • Issue Number: 1
  • Publisher: Inderscience Enterprises Limited
  • ISSN: 1470-9511
  • Serial URL: http://www.inderscience.com/jhome.php?jcode=IJATM

Subject/Index Terms

• TRT Terms: Costs; Design; Diesel engines; Environment; Pollutants
• Geographic Terms: United States
• ITRD Terms: 224: Cost; 9011: Design (overall design); 1314: Diesel engine; 2442: Emission; 2455: Environment; 8122: USA
• Subject Areas: Design; Energy; Environment; Finance; I15: Environment;

Filing Info

• Accession Number: 01060963
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Sep 10 2007 1:42PM