TRAY DRIER 280 g of mango slices are dried in a tray dryer where the top surface is exposed to air flow with an area of 0.15 mat a velocity of 1.8 m/s. The drying air (Pair= 1.057 kg/m) has an inlet dry bub temperature of 60C and 5% RH and leaves at 40% RH. If the drying occurs in constant rate period and the equilibrium moisture content (X.) is 0.08 kg water/kg dry matter, a) Calculate the rate of drying for constant rate period. b) Calculate the drying time necessary to dry mango slices from an initial moisture content of 87.5% (wet basis) to a final moisture content of 55.2% (wet basis). c) Find the dry bulb temperature of outlet drying air. d) Calculate the total amount of drying air used in the dryer at inlet conditions. (n = 0.0204G98 m); G = ve olay R mah