Stability and Behavior of Inverse Diffusion Flame

Abstract

The flame holding at the burner in one of the essential parts for high performance combustion. Flame holding and lifting/blow-off at the burner rim and the stabilization mechanism have been researched. The nozzle diameter (curvature) at the upstream end of the diffusion flame adjacent to the burner rim plays important roles for holding the flame. The inverse diffusion flame (IDF) is the flame where the fuel and air streams of a normal round co-flowing diffusion flame (NDF) are reversed. The objective of the present study is to get further understanding lifting/blow-off in the inverse diffusion flame (IDF) and present clearer understandings of the processes of the flame holding at the burner rim.