Modelling the Effect of Split Injections in Diesel Engines Using Representative Interactive Flamelets 1999-01-3547
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.
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. Download Citation
Author(s):
C. Hasse, H. Barths, N. Peters
Affiliated:
Institut für Technische Mechanik, RWTH Aachen
Pages: 10
Event:
International Fuels & Lubricants Meeting & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Modeling and Diagnostics in Diesel Engines-SP-1480
Related Topics:
Diesel / compression ignition engines
Particulate matter (PM)
Emissions
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