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NO x reduction in diesel engines using rate shaping and pilot injection

Author

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  • Mohammad Ghaffarpour
  • Alireza R. Noorpoor

Abstract

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.

Suggested Citation

  • Mohammad Ghaffarpour & Alireza R. Noorpoor, 2007. "NO x reduction in diesel engines using rate shaping and pilot injection," International Journal of Automotive Technology and Management, Inderscience Enterprises Ltd, vol. 7(1), pages 17-31.
    • Handle: RePEc:ids:ijatma:v:7:y:2007:i:1:p:17-31
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    Cited by:

    1. Catania, A.E. & Ferrari, A., 2012. "Development and performance assessment of the new-generation CF fuel injection system for diesel passenger cars," Applied Energy, Elsevier, vol. 91(1), pages 483-495.
    2. Abbaszadehmosayebi, G. & Ganippa, Lionel, 2014. "Determination of specific heat ratio and error analysis for engine heat release calculations," Applied Energy, Elsevier, vol. 122(C), pages 143-150.

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