Temporal and Spatial Temperature Measurements of Combustion Flames.

Five methods have been developed theoretically from steady state rate theory and four have been verified experimentally for the measurement of spatial flame temperatures. All of the methods have potential use on a single pulse time period less than 1 micron basis for the measurements of flame temperatures. All of the methods involve the use of one or two closely spaced in time dye laser pulses to excited atomic fluorescence of probe atoms e.g., T1, In, Ga, etc. introduced as an aerosol into the flames. Several experimental difficulties have resulted in initial barriers to the measurement of flame temperatures in hydrocarbon flames as well as the use of an available SIT detector for height profiles of flame temperatures. Other studies have included the theoretical development nad experimental implementation of absolute concentration measurements of atom probes in flame as well as study of saturation broadening of atomic lines. Author