Influence of the Inner and Outer Secondary Air Ratios on the Combustion Characteristic and Flame Shape of a Swirl Burner with a Prechamber

Figure 2

Schematic diagram of the swirl burner with the prechamber. 1-primary air duct; 2-isolate duct; 3-inner secondary air duct; 4-outer secondary air duct; 5-tertiary air duct; 6-axial movable swirl vanes; 7-combustion stabilizing device; 8-expanding cone-shaped prechamber; 9-location of measuring points.