Influence of Hybrid Nanoparticle Additives to the Diesel Fuel on the Combustion, Performance and Emission Characteristics of VCR Engine
Diesel engine emissions lead to significant environmental contamination in the current global scenario. Thus, lowering emissions by enhancing engine efficiency is crucial. The combined effect of aluminium oxide (Al2O3) and cerium oxide (CeO2) nanoparticles blended with diesel on the emission and performance characteristics of the VCR Engine carried out in the present research because the fuel-borne catalyst is a promising solution. The net particle-loading rate ranged from 0.5 per cent to 1 per cent by mass. Ultrasonic processes have mixed the nanoparticles in diesel. At 15.16, 16.36 and 17.26:1 compression ratios, respectively, the experiment carried out. The results showed that, with a compression ratio of 16.36:1, the ignition delay decreased to a maximum of 16.56 %. The peak pressure increased to a maximum of 6.39 percent for a compression ratio of 17.26:1, and the Heat Release Rate (HRR) increased to a maximum of 12.65 per cent for a compression ratio of 17.26:1. In comparison, a substantial reduction in the emission characteristics of Unburnt Hydrocarbon (UBHC), Carbon monoxide (CO), PM and NOx achieved for the nanoparticle-blended diesel by 25.94 %, 25.45 percent, 23% and 5.73 percent compared to clean diesel. NOx reduced by 7.66 % to clean diesel at a compression ratio of 15.16:1, the increased efficiency and reduced SFC and emissions, when compression ratio increases.