An Experimental Study of the Impact of Manganese Dioxide (MnO2) Blended Fuel on the Performance and Emission Characteristics of a Diesel Engine

Biodiesel as an alternative fuel has been researched as a replacement for conventional diesel; however, the performance of biodiesel is somewhat less than that of fossil fuel. In this study, the performance and emissions characteristics of a diesel engine are analyzed with Manganese dioxide (MnO2) nanoparticles. Diesel and palm oil biodiesel are mixed at a blending ratio of 95:5, respectively. MnO2 nanoparticles were employed at 50, 75, and 100 ppm by weight, respectively, to create blended biodiesel fuel samples. The characteristics of a four-stroke, one-cylinder, water-cooled diesel engine under variable loads of 25–100% at 17.5 compression ratio using different fuel samples comprised of diesel, biodiesel, and nanoparticle-mixed biodiesel fuel samples. The addition of MnO2 nanoparticles causes a BMEP and BTE improvement by 2.70% and 8.85%, respectively, and a BSFC drop of up to 14.29% with the prepared fuel samples. The use of MnO2 nanoparticles also reduced emissions of NO and HC by up to 8.44% and 18.42%, respectively. The percentage changes indicated improved engine performance and lower emissions using nanoparticles. The findings point to the benefits of fuel mixes in terms of energy and the environment, but it’s also critical to consider the financial viability and scalability of MnO2 nanoparticle production.