TY - JOUR
T1 - Computational Fluid-Particle Dynamics for the Flame Synthesis of Alumina Particles
AU - Johannessen, Tue
AU - Pratsinis, Sotirie E.
AU - Livbjerg, Hans
PY - 2000/1
Y1 - 2000/1
N2 - A mathematical model for the dynamics of particle growth during synthesis of ultra fine particles in diffusion flames is presented. The model includes the kinetics of particle coalescence and coagulation, and when combined with a calculation of the temperature, velocity and gas composition distribution in the flame, the effuent aerosol characteristics are calculated. The model is validated by comparison with an experimental study of the synthesis of alumina particles by combustion of Al-tri-sec-butoxide. Two parameters of the coalescence kinetics are estimated by regression of the model predictions to the measured specific surface area of the product particles. The estimated kinetics can be used to predict the surface area and shape of the particles for a wide range of synthesis conditions.
AB - A mathematical model for the dynamics of particle growth during synthesis of ultra fine particles in diffusion flames is presented. The model includes the kinetics of particle coalescence and coagulation, and when combined with a calculation of the temperature, velocity and gas composition distribution in the flame, the effuent aerosol characteristics are calculated. The model is validated by comparison with an experimental study of the synthesis of alumina particles by combustion of Al-tri-sec-butoxide. Two parameters of the coalescence kinetics are estimated by regression of the model predictions to the measured specific surface area of the product particles. The estimated kinetics can be used to predict the surface area and shape of the particles for a wide range of synthesis conditions.
U2 - 10.1016/S0009-2509(99)00183-9
DO - 10.1016/S0009-2509(99)00183-9
M3 - Journal article
SN - 0009-2509
VL - 55
SP - 177
EP - 191
JO - Chemical Engineering Science
JF - Chemical Engineering Science
IS - 1
ER -