Secondary Atomization of Fuel Oil and Fuel Oil/Water Emulsion through Droplet-Droplet Collisions and Impingement on a Solid Wall

This paper presents findings from an experimental study investigating the secondary atomization of liquid fuel droplets widely used in heat and power industry exemplified by oil environmentally promising oil/water emulsion. The scientific novelty comes comparative analysis critical conditions integral characteristics composite fuels with greatest potential for plants. Here, we two schemes: droplet–droplet collisions a gas impinging on heated solid wall. temperature liquids under was 80 °C. velocities before collision ranged 0.1 m/s to 7 m/s, while initial droplet sizes varied 0.3 mm 2.7 mm. A copper substrate served as wall; its 20 °C 300 main interaction were recorded high-speed camera. Regime maps constructed using findings. It established that Weber number several times lower when water collided than during 10 vol% water. emulsion their impingement wall found reduce typical fragments factor 40–50. As shown paper, even highly viscous can be effectively sprayed primary schemes. optimal supplied zone is °C, approximates