A lecture room is required to be air-conditioned by using evaporative cooling with a spray of chilled water. The lecture room occupancy is 200-person and light power is 1000 W. The inside design conditions are 24 °C db and 55% R.H. The outside design conditions are 35 °C db and 24 °C wb. The relative humidity of the supply air is 90%. The heat gains from the walls roofs etc. are 15 kW. Assume 100% of outside fresh air. Calculate the refrigeration unit capacity needed to air condition the lecture room. Take CLF-CLFL1.00.