Experimental study of the effects of secondary air on the emissions and stability of a lean premixed combustorA study of the effects of secondary air addition on the stability and emissions of a gas turbine combustor has been performed. Tests were conducted with two types of flameholders and varying amounts of dilution air addition. Results indicate that NO(x) decreases with increasing dilution air injection, whereas CO is independent of the amount of dilution air and is related to the gas temperature near the walls. The axial location of the dilution air addition has no effect on the performance or stability. Results also indicate that the amount of secondary air entrained by the flameholder recirculation zone is dependent on the amount of dilution air and flameholder geometry.
Document ID
19820051457
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Roffe, G. (General Applied Science Labs., Inc. Westbury, NY, United States)
Raman, R. S. V. (General Applied Science Laboratories, Inc. Westbury, NY, United States)
Marek, C. J. (NASA Lewis Research Center Cleveland, OH, United States)