• R Anand Kishore
• Dr C Sreedhar
• Dr S Sunil Kumar Reddy
• Dr F Anand Raju

This work reports the Spray angle of gasoline-ethanol blend at varying pressures for an 10-hole Port Fuel Injector. At 1 bar and 2 bar injection pressures, the spray angle is measured using Digital Image Processing Technique. Researched here are the spray behaviour of gasoline-ethanol blend with 1:1 ratio. The injector's necessary square pulse is produced using an Arduino UNO micro controller. Photos of the spray are taken using a fast shutter speed camera and then analysed in MATLAB to determine spray angle. Canon 5D is the camera model utilized. Spray angles and penetration depths improved as pressures rose. Even though there is a large gap between the viscosities of gasoline and Ethanol. The spray characters look the same at divergent pressures. For a given surface tension this goes against the usual expectation that spray angles would decrease with increasing viscosity. Spray angle is found to be 12.1 and 15.2 degrees for gasoline and 12.1, 15.3 degrees for 1:1 ratio of Gasoline-Ethanol blend at 1 bar and 2 bar pressures.

Gasoline-Ethanol blends, Port Fuel Injector, Injection Pressure, Digital Image Processing, Spray Angle

"SPRAY ANGLE OF PORT FUEL INJECTOR AT DIFFERENT PRESSURES FOR GASOLINE-ETHANOL BLENDS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 2, page no.b678-b685, February-2023, Available :http://www.jetir.org/papers/JETIR2302189.pdf

"SPRAY ANGLE OF PORT FUEL INJECTOR AT DIFFERENT PRESSURES FOR GASOLINE-ETHANOL BLENDS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 2, page no. ppb678-b685, February-2023, Available at : http://www.jetir.org/papers/JETIR2302189.pdf