A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm 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 : Δ P/L = 375 × 103 VOM + 10.94 × 106 V2 OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is_________________?

Related Mcqs:

In isotropic turbulence, the _____________ are equal to each other?

A. Temporal velocity components B. Mean square of velocity fluctuations in the three co-ordinate directions C. Root mean square of velocity fluctuations in the three co-ordinate directions D. None of these...

Which of the following is most prone to pulsating discharge flow ?

A. Centrifugal pump B. Reciprocating pump C. Gear pump D. Axial flow pump...

The ratio of pressure forces to inertial forces is called the _______________ number?

A. Froude B. Euler C. Reynold D. Mach...

Existence of boundary layer in fluid flow is because of the_________________?

A. Surface tension B. Fluid density C. Fluid viscosity D. Gravity forces...

In hindered settling, the particles are_________________________?

A. Placed farther from the wall B. Not affected by other particles and the wall C. Near each other D. None of these...