You are drying a wet solid using a continuous dryer. dry air enters the dryer at a rate of 300 kg/min and picks up the water that evaporates from the solid. the humid air that leaves the dry is at 100of and has a wet bulb temperature of 79of. after leaving the dryer, the air is passed into a condenser and it is cooled to 55of. the pressure is constant at 1 atm.
use the psychrometric chart to estimate the absolute humidity, the relative humidity, the dew point, and the specific enthalpy of the air leaving the dryer.
at what rate (lbm/min) is water evaporating in the dryer?
use the psychrometric chart to estimate the absolute humidity and specific enthalpy of air
leaving the condenser.
calculate the rate of rate at which the water is condensing (kg/min).
calculate the rate at which heat must be transferred from the condenser in btu/s.
if the dryer operates adiabatically, what can you conclude about the temperature of the
entering air? briefly explain your reasoning.