Effects of biodiesel obtained from safflower and sunflower oil on engine performance and exhaust emissions

In this research, biodiesels were produced from safflower and sunflower oils by using transesterification method. B10 (5% safflower, 5% sunflower biodiesels) and B20 (10% safflower, 10% sunflower biodiesels) were formed volumetrically. Fuel analyses of diesel, B10 and B20 fuels were performed. The effects of test fuels on engine performance and the effect of SCR on NOx emissions were investigated. With the use of B10 and B20 fuels, an average of 1.80% and 3.24% decrease in engine power was observed compared to diesel fuel, respectively. It was observed that the effective power decreased by 0.62% and 1.75% with B10 and B20 fuels, respectively, compared to diesel. When the specific fuel consumption was examined, an increase of 3.37% in B10 and 5.54% in B20 was observed at 2000 rpm. After SCR, 71.4%, 89.4% and 93.1% decreases were observed at 2400 rpm for diesel, B10 and B20 fuels, respectively.