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Calculate the air velocity required to fluidise 50 kg of a polymer consisting of 3 mm diameter and 700 kg/m3 density. The fluidised medium is

Calculate the air velocity required to fluidise 50 kg of a polymer consisting of 3 mm diameter and 700 kg/m3 density. The fluidised medium is air of 1kg/m3 density and 1.6 x10-5 kg/ms viscosity. Estimate also the pressure drop if the particles are contained in a 40 cm diameter vessel

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