Investigation of Liquid Fueled Turbulent Diffusion Flames

-Pollutant emissions data gathered from within a simulated gas turbine combustor primary zone (flame stabilized in the wake of a disc with liquid fuel injected into the wake region from the center of the disc) for three widely varied operating conditions are reported and discussed. The basic flame structure was found to consist of a hollow reaction region (shear layer) along the boundary between the recirculation zone and the free stream. As the heterogeneous properties of the combustion process increased in importance, a free stream flame zone following the fuel spray was also detectable. In addition, CO and NO x emissions were found to originate in separate regions of the flame structure.