Simulation of diesel engine in closed cycle direct spraying with the help of a ahtraghi of area 6Closed Cycle Simulation of DI Diesel Engine with Six Zone Combustion Model

Document Type : Research Article

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Abstract

In this study, diesel engine simulation is carried out with a new phenomenological multi-zone combustion model. This model is used to simulate the diesel cycle including fuel injection and combustion processes. The model has been developed using well-known combustion imaging studies of Dec, the spray penetration studies by Siebers, and assumptions of Maiboom. This model divides the combustion chamber into six zones and provides local information such as temperature, mean equivalence ratio and composition in each zone. In order to determine the amount of emissions, the Zeldovich model is used for the NO and NSC model for soot. A comparison of model predictions with available experimental data shows very good agreement for different main engine parameters such as engine speed and load, inlet air temperature and pressure, exhaust gas recirculation (EGR) rate, injection pressure and injection timing.

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