Combustion Characteristics in Various Primary and Auxiliary Air Flux Conditions at a Coaxial Swirling Diffusion Combustor

동축선회 확산연소기의 1차 및 보조공기유량 변화에 따른 연소배출특성

The purpose of this study is to investigate the combustion emission characteristics changing auxiliary air injection in combustion field of coaxial swirling diffusion combustor. For this purpose, mean temperature, CO, CO2, O2 and HC concentration were measured by changing excess air ratio and auxiliary air injection. As a result of this study, mean temperature, CO2 emission were increased and CO emission decreased by increasing auxiliary air. Therefore, this paper showed the auxiliary air injection effected strongly on flame structure and combustion emission characteristics.