Spray Characteristics at Preheating Temperatur of Diesel-Biodiesel-Gasoline Fuel Blend

Technological developments in diesel engines require improvements to the fuel injection system meet criteria for economical, high-power and efficient combustion environmental regulatory standards. One method that has a lot of interest is changing characteristics fuel, with aim producing optimal combustion. Spray have big role determining quality engines. A good spray can improve atomization homogeneity air-fuel mixture chamber so it produce engine performance low emissions. This study aims determine effect diesel-biodiesel (Calophyllum inophyllum)-gasoline blendandfuel heating on characteristics. The research was conducted variations composition (B0, B100, B30, B30G5 B30G10) (40, 60, 80, 100 °C). Fuel injected atapressure 17 MPa pressure 3 bar. formed recorded high-speed camera 480 fps (resolution 224x168 pixel). In B100 biodiesel, highest viscosity density cause high tip penetration, small angle, velocity. addition oil, gasoline, reduces penetration decreases, angle increases velocity decreases.