On comparison with Fluidized bed and Packed bed, which has the highest voidage?
(a) Fluidized bed
(b) Packed bed
(c) Pressure drop
(d) All of the mentioned
I had been asked this question by my school principal while I was bunking the class.
This is a very interesting question from Minimum Fluidizing Velocity in section Fluidization and Mapping of Regimes of Fluidization Engineering