From Figure 4, it is observed that bed expansion ratio is more with fluidization process than spouting ones.
Fluidization index in spouting process always deviates from the fluidization process.
The standard deviations of calculated values are found to be within +15% to -15% and mean deviation within -1 to 5% for fine particles in both fluidization and spouting process.
Subscripts S: Static max: Maximum min: Minimum C: Column i: Spout o: Superficial mf: Minimum fluidization ms: Minimum spouting p: Particle.
Grace, "Spouting of Particulate Solids," Chapter 10, in "Handbook of Powder Science and Technology," 2nd ed., M.
Mujumdar, "Spouting of Two-Dimensional Beds With Draft Plates," Can.
Dimensionless bed heights, [H.sub.0]/[d.sub.c], were varied from 1 to 4 and U/[U.sub.ms] ratios from 0.3 to 1.6 to determine the limits of the spouted bed flow regimes (fixed bed, incipient spouting, stable spouting, pulsating spouting, slugging, bubble spouting, and fluidization).
The mutual information function was found to change with the spouting conditions and measurement position.
Figure 2 shows typical results for 2.4 mm particles for stable ([H.sub.0] =250 mm), and unstable ([H.sub.0] = 400 mm) spouting conditions.