Effects of varying the liquid fuel type and air co-flow conditions on the microscopic spray characteristics in an atmospheric annular co-flow spray burner

The atomization process is critical for combustion systems since it directly influences emissions and performance. Thus injection system should provide the spray required structure characteristics, e.g., angle droplet size distribution. Therefore, this work investigates effects of varying fuel type, air co-flow rates, mass flow rate temperature on characteristics (e.g., distribution velocity) in an annular burner. These were investigated by measuring sizes velocities at different radial axial positions n-Heptane, n-Decane n-Dodecane sprays under non-reacting conditions a room pressure 1 atm 298 K using Microscopic Diffused Back-illumination (MDBI) technique. In addition, Sauter mean diameter (SMD) predicted three well-known correlations compared to experimental measurements. outcomes research provided fair understanding influence these parameters velocity through wide test matrix. Finally, findings reported here will support future into function phase change flame stability.