The fans are just blowing 75 degree air at 75 degree water so how does the water end up below 75? And is there a limit to how low it could go?
In: Physics
Water absorbs a certain amount of energy/heat when it evaporates. Heat gets used up when it breaks the bonds holding water molecules together as a liquid.
In principle as long as the air is dry you can pretty much indefinitely keep cooling. The air can only hold so much water though.
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