Combustion Emission Characteristics on the Effect of Secondary Air Injection in Model Gas Turbine Combustor

J. Ocean Eng. Technol. 2000;14(3):84-89.

모형 가스터빈 연소기의 2차공기 주입에 따른 연소배출특성

김규성,임경달,이도형

부경대학교 대학원 기계공학과,부산기능대학 연구원,부경대학교 기계공학부

Keywords: Primary air, Secondary air, Combustion field, Model gas turbine combustor, Excess air ratio, Flame structure, Combustion emission characteristics

핵심용어: 주류방향공기, 2차공기, 연소장, 모형가스터빈 연소기, 공기과잉률, 화염구조, 소배출특성

Abstract

The purpose of this study is to investigate the combustion emission characteristics by the effect of secondary air injection and variation of the excess air ratio in combustion field of model gas turbine combustor. For this purpose, mean temperature, CO, $CO_2$, $O_2$ and HC concentrations were measured by changing excess air ratio and secondary air injection. As a result of this study, mean temperature was decreased and CO, HC emission increased by increasing the excess air ratio of secondary air. Therefore, this results showed the secondary air injection effected strongly on the flame structure and combustion emission characteristics.