Diesel engines are
particularly harmful to the environment due
to the high levels of pollution they release. This led to the discovery
of a sustainable and environmentally friendly fuel source. Mahua oil
transesterified into biofuel seems to be the most popular option.
The possibilities for nano-additions to enhance engine performance
while simultaneously lowering pollution levels are substantial. In
this research, 20% by proportion mahua biodiesel (MAH B20) was mixed
with varying concentrations of aluminum oxide (Al2O3) and cerium oxide (CeO2) nanoparticles, and their
joint effects on a mono-cylinder diesel engine working at a speed
of 1500 revolutions per minute (rpm) were evaluated. With the use
of an ultrasonic bath, the nanoparticles and MAH B20 were blended
at varying concentrations and a surfactant was added for stability.
The investigations concluded that the combustion and emission properties
of mahua biofuel were improved because of the higher volume to surface
area ratio of the combined Al2O3 and CeO2 nanostructures. The best results are found when mahua biofuel
is mixed with Al2O3 and CeO2 each
at 100 parts per million (ppm). The blend MAH B20 AL100 CE100 exhibits
reduced brake specific fuel consumption (BSFC) by 3.25%, increased
brake thermal efficiency (BTE) by 1.39%, and reduced emissions of
hydrocarbon (HC), oxides of nitrogen (NOX), and carbon
monoxide (CO) by 30.73, 1.27, and 44.13%, respectively.