an air conditioning system operates at a total pressure of 1 atm and consists of a heating section and a humidifier that supplies saturated water at 25oc. air enters the heating section at 10oc and 20% relative humidity at a dry air volumetric flow rate of 35 m3 /min. it is heated to t2 in the heating section and leaves the humidifying section at 28oc and 50% relative humidity.
