A bed of spherical particles (specific gravity 2.of uniform sizeμm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.Ergun's equation for the above fluid-particle system (in SI units) is given below : Δ P/L =x 103 VOM + 10.x 106 V2OM (SI units) If water is to be used as the fluidising medium, in actual operation, the above bed has a height = 1 m. What is the porosity of the fluidised bed ? |