Investigation on the combustion and emission characteristics of CRDI diesel engine fuelled with nano Al2O3 and Fe3O4 particles blended biodiesel

This experimental investigation was carried out to suggest the suitable dose quantity of Al2O3 and Fe3O4 nanoparticles into mahua biodiesel blend (MME20) at which the best possible CRDI diesel engine combustion and emissions is reached. In this work, the dosing quantity of Al2O3 and Fe3O4 nanoparticles is varied from 40 to 120 ppm into the MME20 fuel blend with the assist of ultrasonicator. The Cetyl trimethyl ammonium bromide (CTAB) was utilized as cationic surfactant to increase the stability of dispersion of nanoparticles with MME20 fuel blend. The outcomes obtained from this experiment proved that the MME20 reduces the CRDI diesel engine brake thermal efficiency and increases its emission. The accumulation of Al2O3 and Fe3O4 nanoparticles was originate to enhance the brake thermal efficiency and combustion parameters. The best emission characteristics are obtained at a dosing of 80 ppm of Al2O3 and Fe3O4 nanoparticles. Similarly better combustion characteristics are observed at a dosing of 80 ppm of Al2O3 compared with Fe3O4 nanoparticles. (C) 2019 Elsevier Ltd. All rights reserved.