Numerical Study of the Effect of EGR on the Performance and Emissions of Turbo-Charging Diesel Engine

The effect of the Exhaust Gas Recirculation(EGR) on the performance and emissions of the turbo charging diesel engine is studied numerically and tested experimentally. Both simulation and experimental results show that EGR can reduce NO x emission evidently while affecting the performance of engine. The working parameters also have effects on the performance of EGR. The changes of NO x emission and engine performance are different with engine load altering. Compared to the experimental results, it shows that the simnlation model gives enough calculation precision to predict the performance and emissions of the engine.