Q.5: A granular wet solid is taken on a tray (1m×0.6m) and dried in a stream of hot air (1200C; humidity 28% is to be dried to 0.5% (All on dry basis). From lab tests it is known that the critical...

Extracted text: Q.5: A granular wet solid is taken on a tray (1m×0.6m) and dried in a stream of hot air (1200C; humidity 28% is to be dried to 0.5% (All on dry basis). From lab tests it is known that the critical moisture content is 12% and the equilibrium moisture is negligible. If the solid loading is 35 kg dry solid /m2, calculate the drying time. Use hc = 0.0204G0.8 , G in kg/m2.h = 0.02 kg/kg dry air, u = 4.5 m/s). The initial moisture content of and hc is in W/m2.K.