Abatch dryer removes water from a solid at a rate of 30 kg/hr during the constant rate period. critical moisture content is 0.25 kg h2o/kg dry solid. the equilibrium moisture content of the material is 0.035 kg h2o/kg dry solid. the drier is initially charged with 750 kg of total material, which contains 2 00 000 g of moisture. the final product should contain 0.08 kg h2o/kg dry solid. the falling rate period can be represented by a straight line. the total drying area is 5 m^2 .
1. draw a schematic diagram that depicts the process.
2. determine the total drying time to produce the product.