Water is pumped upward through a bed of 1 mm diameter iron oxide particles (SG ¼ 5:3). If the bed porosity is 0.45, over what range of superficial water velocity will the bed be fluidized? Determine...

Water is pumped upward through a bed of 1 mm diameter iron oxide particles (SG ¼ 5:3). If the bed porosity is 0.45, over what range of superficial water velocity will the bed be fluidized?

Determine the range of flow rates (in gpm) that will fluidize a bed of 1 mm cubic silica particles (SG ¼ 2:5) with water. The bed is 10 in. in diameter, 15 in. deep.