Full Content is available to subscribers

Subscribe/Learn More  >

A Numerical Study of the Effect of Multi-Injection Strategy on NOx Reduction in DI Diesel Engines

[+] Author Affiliations
Yan Wang, Chao Zhang, Jin Jiang

University of Western Ontario, London, ON, Canada

Paper No. HT2005-72741, pp. 759-765; 7 pages
  • ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems
  • Heat Transfer: Volume 1
  • San Francisco, California, USA, July 17–22, 2005
  • Conference Sponsors: Heat Transfer Division and Electronic and Photonic Packaging Division
  • ISBN: 0-7918-4731-4 | eISBN: 0-7918-3762-9
  • Copyright © 2005 by ASME


Diesel engines are becoming more and more popular as a power source for transportation and industry utility because of their better fuel efficiency over gasoline engines. At the same time, more and more stringent emission regulations on internal combustion engines have been used by governments all over the world. NOx emission control has become one of the biggest challenges in the design of Diesel engines. Previous experiments and simulations have shown that the multi-fuel-injection strategy can potentially reduce NOx emission in Diesel engines. In this study, more detailed numerical simulations have been conducted for up to 5 split fuel injections as compared to the conventional single fuel injection strategy to explore the effect of multi-fuel-injection on NOx reduction. KIVA-3V release 2, a multi-dimensional computational code employing combustion model, turbulence model, spray model and NOx production model, has been used in the numerical simulation. The combinations of multi-fuel-injection strategy with EGR (Exhaust Gas Recirculation) technique and multi-hole injectors are investigated as well. The results of this investigation have demonstrated that the use of the multi-fuel-injection strategy can effectively reduce the NOx emission in Diesel engines. Combined with other NOx reduction techniques, multi-fuel-injection strategy is a very promising way to make modern Diesel engines comply with the ever-stringent emission targets.

Copyright © 2005 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In