A53 -- Evaporative Cooling (I-P)

Evaporative cooling is energy efficient, environmentally friendly, and cost effective in many applications and all climates. Applications range from comfort cooling in residential, agricultural, commercial, and institutional buildings, to industrial applications for spot cooling in mills, foundries, power plants, and other hot environments. Several types of apparatus cool by evaporating water directly in the airstream, including (1) direct evaporative coolers, (2) spray-filled and wetted-surface air washers, (3) sprayed-coil units, and (4) humidifiers. Indirect evaporative cooling equipment combines the evaporative cooling effect in a secondary airstream with a heat exchanger to produce cooling without adding moisture to the primary airstream. General Applications Indirect Evaporative Cooling Systems for Comfort Cooling Booster Refrigeration Residential or Commercial Cooling Exhaust Required Two-Stage Cooling Industrial Applications Other Applications Control Strategy to Optimize Energy Recovery Air Cleaning and Sound Attenuation Economic Factors Psychrometrics Entering Air Considerations