Sonicore atomizer

Spray Formation by Sonicore Atomizer. Air Pressure is 1 psig and Fuel Pressure is 10 psig. Fuel is SRC-II Middle Distillate. 

Effect of Fuel Viscosity on Spray Formation. Atomizer is Sonicore 052H. Fuel is No. 6 Oil. 

For comparable fuel flow rates, the Sonicore atomizer could provide a spray with smaller SMD. Increasing the air-to-fuel ratio improved spray quality and can be used to compensate for increased fuel viscosity. 

It is therefore evident that a detailed experimental analysis of the spray flame is necessary for its theoretical characterization. The aerodynamic changes achieved within the modulated swirl combustor, in which it is demonstrated that blue flame combustion of oil can be achieved using this combustor and a Sonicore atomizing nozzle, clearly show the strong effect of flow aerodynamics upon the spray combustion process. 

Kerosene Fuel—Results and Discussion. Liquid kerosene was burned in the above modulated swirl combustor using a Sonicore atomizing nozzle. As expected the flame could be modulated to obtain a bright yellow, highly radiative flame or a clean blue flame as shown in Figure 12. Total air flow was the same, and the bum-out was complete by about 1 diameter downstream of the burner exit in both cases. Radial distribu-... 

The size, shape, and length of the flames obtained from the two types of atomizers (twin-fluid air blast and Sonicore) show some fundamental differences between the two atomizers. A relatively large droplet size from the twin-fluid atomizer together with low concentrations of oxygen and temperature within the spray allow combustion to occur essentially at the spray boundary. 

Figure 12, Flame photographs of the kersosene-air flame using sonicore atomizer and the modulated swirl combustor, (a) Bright yellow, highly radiative flame (b) clean, blue flame.

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