Influence of Injection System Parameters on Spray Development Combustion and Soot Formation by Optical Measurement Techniques in a Model Combustion Chamber 950233

A light extinction technique has been applied to the direct injection Diesel combustion process under simplified engine-like boundary conditions in a model combustion chamber. The combination of these experimental tools proved to provide excellent data about the time and space resolved soot formation and oxidation processes in Diesel sprays. The importance of the injection history with regard to low soot emissions is pointed out by time and local resolved soot mass concentrations, the behaviour of total mass of soot in the spray and mean soot formation/oxidation rates for different injection rates, nozzle opening pressures and nozzle geometries.


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