Question

Once the bed is fluidized, with increasing the flow, the pressure drop across the bed

• A. Increases
• B. Decreases
• C. Remains constant
• D. Varies linearly

Hint:

In fluidized beds, pressure drop becomes independent of flow once fluidization is achieved.

Answer 1

The Correct Option is C

After minimum fluidization velocity, the pressure drop remains constant and equals the weight of solids per area.
Further increase in velocity just expands the bed.