NANOPARTİKÜL İLAVESİNİN BENZİNİN KIRILMA İNDİSİ VE YOĞUNLUĞU ÜZERİNDEKİ ETKİSİNİN ARAŞTIRILMASI

In this study, the use of Al2O3 and TiO2 nano particles with a size of 12 nm and a purity of 99.9% as gasoline fuel additives was investigated. Fuel mixtures were prepared using a 3-level factorial design technique, and density and refractive index values were determined. Al2O3 nano particles, due to their high surface area, increased the density by 0.17% (3.5 ppm) and 1.22% (7 ppm), while TiO2 nano particles increased the density by 0.22% (3.5 ppm) and 1.26% (7 ppm). It was observed that the nano particle with a higher surface area had a less significant effect on density. The refractive index values decreased by 0.11% (3.5 ppm) and 0.14% (7 ppm) for Al2O3 nano particles, and by 0.21% (3.5 ppm) and 0.24% (7 ppm) for TiO2 nano particles. This study highlighted the importance of particle size, purity, and surface area in the selection of nano particles. Based on the evaluations and preliminary tests, nano particle levels above 15 ppm exhibited a tendency for agglomeration in the fuel. It is crucial to limit the total concentration to 15 ppm, especially for nano particles with a high surface area like Al2O3, to achieve homogeneous fuel.