Effect of Air-Fuel Mixture Homogenisation and Exhaust Gas Recirculation on Formation of Nitrogen Oxides and Soot in a Diesel Combustion Chamber

We present the results of investigating work cycles of a high-speed diesel obtained by means of using a 3D model that considers formation kinetics for nitrogen oxides and soot, said model validated through experimental data. We analysed various work cycle concepts: the stock (basic) option featuring no exhaust gas recirculation, as well as a number of alternative ones: a modified stock one with added recirculation and altered injector nozzle design, and two options featuring partially homogeneous combustion involving fivefold fuel injection. We performed a comparative analysis of environmental performance and performance characteristics of the work cycle options under study, which makes it possible to evaluate their potential

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