Phenomenological Diesel Combustion Model Including Smoke and NO Emission

An existing phenomenological model for combustion in quiescent and swirl assisted direct injection diesel engines developed by the authors has been extended to incorporate sub-models for exhaust smoke and nitrogen oxide emissions, based on published mechanisms for the formation of these two pollutants.

Prediction of exhaust smoke and NO emission over a range of engine operating conditions including the effects of exhaust gas recirculation, has been undertaken for two quiescent and one swirl assisted engine. The predictions show well the general trend in emissions behaviour when compared with experiment, giving the possibility of using the model (with some calibration) for parametric studies.