A SUE （sudden expansion） combustor is analyzed using CFD （computational fluid dynamics） methods. Corresponding CO and NOx emissions are computed for various operating conditions of the SUE combustor with a can typ...A SUE （sudden expansion） combustor is analyzed using CFD （computational fluid dynamics） methods. Corresponding CO and NOx emissions are computed for various operating conditions of the SUE combustor with a can type geometrical configuration. The goal of this work is to see if the SUE combustor is a viable alternative to conventional combustors which utilize swirlers. It is found the can type combustor＇s NOx emissions are quite low compared to other combustor types but the CO emissions are fairly high. Emissions can be improved by providing better mixing of the fuel and oxidizer in the primary combustion zone. The SUE combustor design needs to be further refined in order for it to be a viable alternative to conventional combustors with swirters.展开更多
文摘A SUE （sudden expansion） combustor is analyzed using CFD （computational fluid dynamics） methods. Corresponding CO and NOx emissions are computed for various operating conditions of the SUE combustor with a can type geometrical configuration. The goal of this work is to see if the SUE combustor is a viable alternative to conventional combustors which utilize swirlers. It is found the can type combustor＇s NOx emissions are quite low compared to other combustor types but the CO emissions are fairly high. Emissions can be improved by providing better mixing of the fuel and oxidizer in the primary combustion zone. The SUE combustor design needs to be further refined in order for it to be a viable alternative to conventional combustors with swirters.
