A bed of spherical particles (specific gravity 2.5) of uniform size 1500 m is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below : P/L = 375 x 103 VOM + 10.94 x 106 V2OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is

A bed of spherical particles (specific gravity 2.5) of uniform size 15

1.	A bed of spherical particles (specific gravity 2.5) of uniform size 1500 m is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below : P/L = 375 x 103 VOM + 10.94 x 106 V2OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is
A.	12 mm/s
B.	16 mm/s
C.	24 mm/s
D.	28 mm/s
Answer» C. 24 mm/s