Nanoparticle-Enabled Reduction of Emissions and Fuel Consumption in Compression Ignition LHR Engines

This study examined how adding nanoparticles affected the diesel engine's performance parameters. Aluminum and cerium are two of the metallic nano additives used in this field thus far. Moreover, a wide range of work in this field is manifested by the potential to use different metals, modify additive structures, and enhance or alter the fundamental fluid. The silver nanoparticles were added to the net
diesel fuel for this reason. The data show that the engine power, oil temperature, and percentage of pollutants released significantly changed. By quickening the burning process, the metallic nanoparticles inside the combustion chamber increase heat transfer to fuel and reduce the ignition delay. In the meantime, during the spraying stage, these particles may help fuel particles penetrate even deeper into the compressed air. The combination of all these characteristics will enhance combustion, resulting in a reduction of unburned carbons and other pollutants. These findings would result in a considerable decrease in the rate of CO and NOx, to 20.5 and 13%, respectively, with
the net diesel and HC levels experiencing the greatest change, up to 28%. The outcomes also show a 3% decrease in fuel consumption and a 6% increase in engine power, with nanoparticles being used in most of these instances. Chugh et al. investigated the green synthesis of silver nanoparticles (AgNPs) using algae as a sustainable and eco-friendly approach. The study highlights the crucial role of capping agents in controlling the size, shape, and stability of AgNPs. The authors explored various capping agents, including polysaccharides, proteins, and polyphenols, to optimize AgNP synthesis [1].