Effects of additives on the microexplosion of carbon slurry droplets

Experimental investigations were conducted on the effects of volatile additives in inducing and intensifying the microexplosion of combusting carbon slurry droplets. The mixture explosion temperatures were determined, and a new droplet generator capable of producing small droplets of well-controlled size was developed for the slurry fuel used. Agglomerate fragments produced through microexplosion were collected by using an impactor-type sampling probe and statistically analyzed. Results show that the fragment sizes follow the log-normal distribution, and that addition of 5% volatile miscible fuels to the carbon slurry can substantially reduce the mean fragment size.