A filter cake 24in.(610mm) square and 2in.(51mm) thick, supported on a screen, is dried from both side with air at a wet-bulb temperature of 80F(26.7 and a dry bulb temperature 160F(71.1C). The air flows parallel with the faces of the cake at a velocity of 8ft/s(2.44m/s). The dry density of the cake is 120lb/ftt3(1,922kg/m3). The equilibrium moisture content is negligible. Under the conditions of drying the critical moisture is 9 percent, dry basis. 1. What is the drying rate during the constant rate period? 2. How long would it take to dry this material from an initial moisture content of 20 percent (dry basis) to a final moisture content of 10 percent? Equivalent diameter is equal to 6in.(153mm). A filter cake 24in.(610mm) square and 2in.(51mm) thick, supported on a screen, is dried from both side with air at a wet-bulb temperature of 80F(26.7 and a dry bulb temperature 160F(71.1C). The air flows parallel with the faces of the cake at a velocity of 8ft/s(2.44m/s). The dry density of the cake is 120lb/ftt3(1,922kg/m3). The equilibrium moisture content is negligible. Under the conditions of drying the critical moisture is 9 percent, dry basis. 1. What is the drying rate during the constant rate period? 2. How long would it take to dry this material from an initial moisture content of 20 percent (dry basis) to a final moisture content of 10 percent? Equivalent diameter is equal to 6in.(153mm)