Modelling the Effect of Split Injections in Diesel Engines Using Representative Interactive Flamelets

1999-01-3547

10/25/1999

Event
International Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
A major problem in reducing pollutant emissions from diesel engines is the soot-NOx trade-off. With the introduction of the Common-Rail injection system splitting the injection into separate pulses has become possible. Experiments using multiple injections indicated that there is the chance to shift the soot-NOx curve closer to the origin.
In order to understand the underlying physical process multidimensional simulations have been carried out for a baseline as well as a split injection case using the Representative Interactive Flamelet (RIF)-Model. The computations are compared to experimental data showing good agreement for both cases. The computations as well as the experiments confirm the possibility of reducing soot with only a slight increase in NOx emissions. It is shown that soot is reduced due to a different mixing process resulting in fewer rich regions.
Meta TagsDetails
DOI
https://doi.org/10.4271/1999-01-3547
Pages
10
Citation
Hasse, C., Barths, H., and Peters, N., "Modelling the Effect of Split Injections in Diesel Engines Using Representative Interactive Flamelets," SAE Technical Paper 1999-01-3547, 1999, https://doi.org/10.4271/1999-01-3547.
Additional Details
Publisher
Published
Oct 25, 1999
Product Code
1999-01-3547
Content Type
Technical Paper
Language
English