Effect of nanoparticle additives on NOxemissions of diesel fuelled compression ignition engine

The amount of emitted harmful emission gases increases in parallel with increasing energy consumption. This increase has forced many countries to take various precautions and various restrictions on emitted emissions have been carried. In this study, effects of addition of oxygen containing nanoparticle additives on NOxemissions of diesel fuelled test engine were investigated. Nine different nanoparticle additives namely aluminium oxide (Al2O3), magnesium oxide (MgO), titanium oxide (TiO2), zinc oxide (ZnO), silicon oxide (SiO2), iron oxide Fe2O3, nickel oxide (NiO), nickel iron oxide (NiFe2O4) and nickel zinc iron oxide Zn0.5Ni0.5Fe2O4were added to diesel fuel at the dosages of 25, 50 and 100 ppm. As a result, optimum additive and addition dosages were determined. Finally, the results showed that NOxemissions were decreased with the addition of nanoparticles.