15 kg of particles of particle density 2000 kg/m3 are fluidized in a vessel of crosssectional area 0.03 m2 by a fluid of density 900 kg/m3 . (a) What is the frictional pressure drop across the bed?...

15 kg of particles of particle density 2000 kg/m3 are fluidized in a vessel of crosssectional area 0.03 m2 by a fluid of density 900 kg/m3 . (a) What is the frictional pressure drop across the bed? (b) If the bed height is 0.6 m, what is the bed voidage?