Publisher : The Korean Society of Mechanical Engineers
DOI : 10.22634/KSME-B.1922.214.171.1243
Title & Authors
Combustion and Microexplosion of AI/Liquid Fuel Slurry Droplets(II)-Theoretical Study- Jo, Ju-Hyeong; Byeon, Do-Yeong; An, Guk-Yeong; Baek, Seung-Uk;
The microexplosion of a slurry droplet was considered to be caused by the shell formation and the following pressure build-up in the shell which would be promoted by the suppression of evaporation, subsequent superheating and heterogeneous nucleation of liquid carrier. To closely investigate the pressure build-up and the heterogeneous nucleation, a numerical model was introduced by considering the internal temperature distributions with the shell formation, suppression of evaporation and pressure build-up inside. The microexplosion time was estimated by postulating the limit of superheat for heterogeneous nucleation. The simulation yielded a reasonably good agreement with experimental results for Al/n-heptane slurry droplets under various solid loadings.
Slurry Droplet;Microexplosion;Heterogeneous Nucleation;Limit of Superheat;Pressuer Build-Up;