A Numerical Study on Effects of an Air Inflow Velocity on NOx emission from a Swirl Premixed Burner

스월 예혼합 버너의 공기유입 속도가 NO 배출특성에 미치는 영향에 관한 수치해석

A correlation between an air inflow velocity and $NO_x$ emission is investigated numerically. The area of a swirl premixed burner is controlled geometrically to increase or decrease an air inflow velocity. When an air velocity increases, mixedness at the burner exit is improved and NO emission at the liner exit is reduced. Although the area of an air slit is the same, NO emission shows discrepancy due to difference of air slit shapes.