The face area and NTU of an air washer are 1.6 m2 and 0.65 respectively. Ambient air at 32°C db-temperature and 21°C wbtemperature enters the air washer with a face velocity of 1.8 msí1 . The water in...

The face area and NTU of an air washer are 1.6 m2 and 0.65 respectively. Ambient air at 32°C db-temperature and 21°C wbtemperature enters the air washer with a face velocity of 1.8 msí1 . The water in the air washer is continuously recirculated. The pressure is constant at 101.3 kPa. Calculate (i) the efficiency of the air washer, (ii) the rate of supply of make-up water, and (iii) the dry bulb temperature and relative humidity of the leaving air