DOI: https://doi.org/10.55373/mjchem.v26i3.233

Keywords: Diesel; biodiesel; alumina nano additives; engine combustion; performance and emissions

Abstract

The current study intends to assess how alumina nano-particles (Al2O3) at a focus of 25ppm affect a biodiesel blend known as B20 (20% biodiesel with 80% diesel) in a DI-diesel engine with 4.5 kW power output and a compression ratio of 17.5. This engine runs at a constant speed of 1500 rpm. The research focus about the engine's performance, combustion and emission parameters when using B20 with B20 blended with 25 ppm of Alumina (referred to as B20+Al) against a DI-diesel engine. Alumina nanoparticles were mix with biodiesel using a blend of a magnetic stirrer and an ultrasonicator device. At full engine load conditions (100%), cylinder pressure was known to be highest for B20, followed by B20+Al, superior liken to diesel fuel. The outcomes suggest that using Alumina nanoparticle slightly 5.66% drops in BSFC and a significant 12.5% rise in (BTE), which can be added due to the HRR rate. In terms of emissions, the adding of Alumina nanoparticles to the blended biodiesel led to in reduced levels of (HC), (CO), and smoke associated to the DI-diesel engine due to oxygen present in soya bean biodiesel. Still, the emissions of (NOx) and (CO2) increased to a greater extent.