The model can theoretically predict the PSD and mass balance at different operating loads,
ash content and points inside the supercritical CFB combustion system. The results of the simulation indicate that
they are in accordancewith the experimental data fromlarge-scale supercritical CFB boiler. The results of modeling
give an opportunity of studying the impact of changes on the solids particle size distribution (PSD) and solids
mass fluxes in operating conditions.