Parametric Study of Physical Requirements for Optimization of the EGR-rate and the Spray Formation for Minimum Emissions Production Over a Broad Range of Load/Speed Conditions 2006-01-1120
The present paper describes a study, which can enable a small displacement (1.3 liter) turbocharged European CR-diesel engine to tolerate an important increase in EGR-level. The analysis is performed by use of a 3D virtual numerical engine model, which isolates the main parameters that must be optimized within the perimeter of the combustion chamber.
The paper gives a short introduction to the physical background for NOx and soot-formation as well as a recall of the main issues related to the simulation models used in the virtual engine simulation. The analysis is performed in a 9 points load/speed test matrix. Several EGR-rates are studied as well as the impact of a precise temperature control of the exhaust gas re-introduced in the intake manifold.
The paper concludes by an analysis of the cumulated impact on the EGR-level tolerated by the engine after the introduction of the suggested optimization measures.
Citation: Pontoppidan, M., Demaio, A., Bella, G., and Rotondi, R., "Parametric Study of Physical Requirements for Optimization of the EGR-rate and the Spray Formation for Minimum Emissions Production Over a Broad Range of Load/Speed Conditions," SAE Technical Paper 2006-01-1120, 2006, https://doi.org/10.4271/2006-01-1120. Download Citation
M. Pontoppidan, A. Demaio, G. Bella, R. Rotondi
Università Tor Vergata di Roma - Italy
SAE 2006 World Congress & Exhibition
Diesel Fuel Injection and Sprays 2006-SP-2010