Figures & data
Figure 1. (a) geometry and; (b) CFB boiler dimensions.
Figure 2. Geometry of a CFB boiler with a ring baffle on the right and rear sides of the furnace.
Figure 3. Dimensions of ring baffle.
Figure 4. Furnace geometry with variations in the number and depth of ring baffle.
Figure 5. Meshed domain of CFB boilers.
Figure 6. Independence grid test.
Table 1. Variations in the number and depth of ring baffles
Table 2. Solver model on ANSYS Fluent 19.2
Table 3. Properties of solid particles
Table 4. Mass flow inlet
Figure 7. Validation result.
Figure 8. Pressure distribution.
Figure 9. Variations in ring baffle ring volume fractions in furnaces.
Figure 10. Bottom (I) and top (II) ring baffle.
Figure 11. Variations in particle volume fraction distribution on ring baffles.
Figure 12. Streamline of air velocity inside the CFB boiler.
Figure 13. Variations in B2 D30 particle flow velocity vectors in furnace regions.
Figure 14. Distribution of particle axial velocity on ring baffle variations.
Figure 15. Variations in the radial velocity distribution of particles on ring baffles.
Figure 16. Comparison of shear stress curves in furnaces with variations in ring baffles.
Figure 17. Narrowing-expansion effect on furnace base.
