In the manufacture of an activepharmaceutical ingredient (API), the API goes through a finalpurification step in which it is crystallized , filtered, andwashed. The washed crystals contain 47 wt% water. They are fed to atunnel dryer and leave the dryer at a rate of 165 kg/h containing5% adhered moisture. Dry air enters the dryer at 145°F and 1 atm,and the outlet air is at 130°F and 1 atm with a relative humidityof 50%. Calculate the rate (kg/h) at which the API enters the dryerand the volumetric flow rate (ft3/h) of inlet air.
