An enhancement in the diesel engine performance, combustion, and emission attributes fueled by diesel-biodiesel and 3D silver thiocyanate nanoparticles additive fuel blends

Abstract

The unique characteristics of the nanosized silver thiocyanate structure motivated the researchers to apply it as an effective agent nanoparticles additive in Diesel/Biodiesel fuel blends. Nanostructure of silver thiocyanate was measured by High resolution transmission electron microscope giving nano diameter between the values of 7.23:7.98 nm. The engine test has been achieved using 200, 400, and 600 ppm nanoparticles of silver thiocyanate additives to the blends of D50B50 (50%diesel & 50% biodiesel by volume). The tested blends are subjecting to a continuous stirring by using a mechanical movement pump to enhance the harmony of the nano-solid inside the blended fuel. During the engine test, the obtained fuel blends are stable and steady and the engine is running smoothly at fixed speeds of 1400 RPM and loads variation. The nanoparticles silver thiocyanate act as an oxygenated contributing catalyst. However, the existence of the extra oxygen inside the engine cylinder participates in reducing the unburned hydrocarbon emissions. The obtained results showed that the 400-ppm nanosized silver thiocyanate comparatively presents a better performance, combustion, and emission with respect to another tested dos. Unburned hydrocarbons and smoke emissions were dramatically reduced by adding the silver thiocyanate nanoparticle, which has working as combustion exciter that enhances the heat release rate process inside the DI-engine cylinder.