1. Basic remarks on modeling and simulation -- 2. Solid fuels -- 3. Equipment and processes -- 4. Basic calculations -- 5. Zero-dimensional models -- 6. Introduction to one-dimensional, steady-state models -- 7. Moving-bed combustion and gasification model -- 8. Chemical reactions -- 9. Heterogeneous reactions -- 10. Drying and devolatilization -- 11. Auxiliary equations and basic calculations -- 12. Moving-bed simulation program and results -- 13. Fluidized-bed combustion and gasification model -- 14. Fluidization dynamics -- 15. Auxiliary parameters related to fluidized-bed processes -- 16. Fluidized-bed simulation program and results.