VELOCITY, TEMPERATURE AND SPECIES CONCENTRATIONS IN UNCONFINED KEROSENE SPRAY FLAMES.

Measurements of velocity, temperature and concentrations of CO, CO//2, O//2 and UHC have been obtained in Kerosene spray flames with Sauter mean diameters of 80 and 90 m. As expected, the flame with the smaller droplets develops faster with a center-line temperature more than 100 degree C greater than that with the larger droplets. The droplet-number density decays rapidly from the nozzle exit and the velocity results, based on measurements of particle velocity, also show a rapid decay: in both cases, the flame with the smaller initial droplets indicates the more rapid fall in droplet-number density and velocity. The precision of the various measurements is discussed and the temperature measurements shown to correspond to unweighted averages whereas the concentrations correspond to density weighted averages.