Investigation on horizontal mixing of particles in dense bed in Circulating Fluidized Bed (CFB)

Investigation of solid mixing mechanisms in a bubbling fluidized bed using a DEM—CFD approach

“…The common of these investigations is that they are carried out either in small beds or at low fluidizing velocity. The works by Niklasson et al ,12 Schlichthaerle and Werther,29 Xiao et al ,30 and Yang et al ,31 which are carried out in relative large beds and at high fluidizing velocity, report that the values of D sr are around 0.1 m 2 /s.…”

Estimation of Solids Mixing in a Fluidized-Bed Combustor

“…The motion of tracer particles is affected by the solid circulation pattern, which in turn depends on wall effects and the geometrical configuration of the reactor. 8,12 All of the transport processes mentioned are usually embedded in the lateral dispersion coefficient in eq 1. However, there are exceptions; for example, Schlichthaerle and Werther 15 introduced a convection term to account for the flow of externally recirculated solids in a circulating fluidized bed.…”

Magnetic tracking of a fuel particle in a fluid-dynamically down-scaled fluidised bed

“…A fluidised bed may contain various types of solids, which in solid fuel conversion applications can be roughly categorised as: the bed materials (also called 'bulk solids'), such as fuel ash, make-up sand or active solids, such as catalysts or sorbents for sulphur capture [1][2][3][4][5][6][7][8][9][10][11]; and fuel particles [12][13][14][15][16][17][18][19][20][21][22][23][24]. Fuel particles are typically larger and lighter than the bulk solids, and their mass fraction typically represents only a small fraction of the total solids inventory.…”