Comparative Study of TiO2 Nanoparticles and Alcoholic Fuel Additives-Biodiesel-Diesel Blend for Combustion, Performance, and Emission Improvements

In the current research, engine performance, combustion, and emission parameters of biodiesel mixture 20% Tamarind oil methyl ester 80% Diesel (B20) with inclusion titanium dioxide (TiO2) in different concentrations (25.50 75 ppm) 10% v/v dimethyl carbonate (DMC) as fuel additive investigated using a single-cylinder, 4-stroke, direct injection (DI), compression ignition (CI) engine. The nano blends were prepared through ultrasonication process. ratio 1:4 TiO2: QPAN80 was produced higher stability consistency out five trials. TiO2 characterized FESEM, HR-TEM, Fourier Transform Infrared (FTIR), X-Ray diffraction. Fuel properties determined per ASTM standards. Engine tests carried to determine performance under varied loads such 25, 50, 75, 100% while keeping uniform speed 1500 rpm. maximum reduction BSFC, CO, HC, NOx found be 17.64%, 9.49%, 7.81%, 6.53%, increased BTE observed 6.13% for B20T50DMC10 compared B20 blend at full load. Thus, combined effect DMC served excellent characteristics CI operation.