Particles of density 1200kg/m³ are fluidized with air at 25⁰C and 203KPa (abs). The shape factor is 0.90. The void fraction at e_mf minimum fluidizing conditions is 0.43. The bed diameter is 0.60m and it contains 350kg of solids. The bulk density of the solids, is 1150kg/m³ and the viscosity of air is 1.845x10^-5Pa.s.

u=1.845*10^5 Ns/m2

R=8.314

Calculate

2.1 The minimum height of the bed

2.2 The pressure drop at minimum fluidizing conditions

2.3 The minimum fluidizing velocity