We talked in an earlier post about evaporative cooling and how you can use it to cool off air by simply evaporating water. Evaporative coolers work best in dry climates, and are much cheaper to operate than vapor compression systems since there is no electricity-hungry compressor. Unfortunately, they result in a large increase in the relative humidity of the air which may render it unacceptable for some indoor air applications. In this post we’ll talk about how evaporative coolers are used in combination with other air conditioning equipment to lower the overall cost of providing conditioned air.
