Effect of SnO2 and Ag nano-additives on the performance, combustion and emission characteristics of diesel engine fueled with mango seed biodiesel

Abstract

The emission from diesel engine leads to global warming and health issues. Alternative fuel is the better choice to solve the aforementioned issues. Bio-fuels have the potential to decrease the engine emission. This research works deals with the performance, combustion and emission characteristics of diesel engine operated with mango seed biodiesel blended with SnO2 and Ag particles. A test was conducted at different loading conditions on the single cylinder, four stroke, and vertical diesel engine. Three types of fuel blends were prepared viz. BD containing 25% methyl ester of mango seed oil and 75% diesel fuel, BD with 50 ppm Ag nanoparticles and BD with 50 ppm SnO2 nanoparticles. Experimental results were compared with the performance, combustion and emission results of diesel fuel. The BD–Ag biodiesel showed 4.4% higher BTE than the pure biodiesel due to the high thermal conductivity of Ag particles. Moreover, the BD–Ag biodiesel exhibited 16.7% more HRR than pure biodiesel owing to better heat transfer ability of Ag particles. In addition, the BD–Ag biodiesel displayed the maximum reduction in CO, UBHC and smoke density of 27.8%, 14.3%, and 11.8%, respectively, compared with that of diesel fuel.