Experimental study on the effect of Al2O3 nanoparticles in diesel fuel on the performance and emission characteristics of a diesel engine

In this research study, alumina nanoparticles (80 and 120 ppm) were prepared and added as additive to the diesel fuel. Effect of these blended fuels was investigated on the performance and exhaust emission of six cylinders, four-stroke diesel engine and the results were compared with the neat diesel fuel. Experimental results reveal that by using of nano-fuels and increase of nanoparticles concentration at diesel fuel increased engine performance variables including engine power and torque output up to 2% and brake specific fuel consumption (BSFC) was decreased 6.01% compared to the neat diesel fuel. Also results proved by increase of nanoparticles concentration at diesel fuel CO and HC emission decreased 13.1% and 23.4% compared to pure diesel fuel respectively. Moreover, CO2 and NOx emission increased 29.5% and 33.3% compared to pure diesel fuel respectively. Therefore, the results showed that alumina nanoparticle additives in diesel fuel increased engine performance and reduced exhaust emission of diesel engine and it can be used as an alternative and environmentally friendly fuel in CI engines.