(in lingua inglese)
In the present work the optimum combination of injection timing,percentage EGR and fuel injection pressure in reducing the NOx emission was arrived for diesel by calculating MRSN ratio and the obtained MRSN ratio was analyzed through ANOVA method and compared with CRBME. From the results of the ANOVA and factor effects the following conclusions are drawn. Fuel injection pressure is the most influencing factor for both diesel and CRBME in reducing NOx emission with minimum increase in smoke density and thermal efficiency.