Question

a drum drier is being a starch-based breakfast food. the initial moisture content of food is 75% on wet basis give conservation estimate

A fine granular solid to be dried at a rate of 600 kg/h from 22% to 0.2% moisture (all wet basis) in a counter-current rotary dryer using hot air at 110 C of humidity 0.012 ka/(kg dry air). The moist solid fed to the dryer is at 25 °C and the dried solid leaves at 80 °C. The moisture in the solid is unbound. In order to avoid dusting, the gas velocity should not exceed 1.7 m/s. The specific heat of the dry solid is 0.9 kJ/kg. °C, Suggest a dryer size. [15]

Answer 1

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Si denc nesdence me mo i shre. 0-53 k -075 18 =0.53kg.. 0.49 5 ka saltes Con ten o.035 0,035+018

MaSS diy o 78 moishvre in 0.gq8 Che re assome emPc ra bhese valbry ahe checked er