Quote:
Originally Posted by AtomicLabMonkey
A residential swamp cooler is not really analogous with a campus-sized pumped water loop, cooling tower, chiller, etc. setup. Even water-cooled chillers use refrigerant; they're like A/C units that cool down a chilled water loop instead of air, and their waste heat goes into a warm water loop that dumps into the cooling towers. The chilled water is pumped through heat exchangers in the air handlers that then blow design temp/humidity air into the conditioned spaces.
Your house unit cools by simply putting the supply air in direct contact with some water, resulting in cooler, more humid supply air.
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I said they were different, didn't I?
And in at least the one in the building I used to work in, there was free flowing water being cooled by outside air. Now if we want to call that an open radiator instead of evaporative cooling, I'll buy that to an extent.
My points was that large computer rooms and buildings are not cooled by the same technology that cools the typical American home, and at least some of the principles of evaporative cooling and the heat capacity of water are used in many of them.
At least 2 of the Harrah's NV locations have backup evaporative cooling systems for their computer rooms which can be more easily driven by emergency power than their normal cooling systems.