2006-07-18 01:35:11 · 3 answers · asked by surnder69 1 in Education & Reference ➔ Other - Education
These coolers depend on evaporation, which is practically nonexistent when the humidity is high. Higher humidity means the air is more saturated with water, making less capacity for evaporation to occur.
2006-07-18 01:48:46 · answer #1 · answered by Speedo Inspector 6 · 2⤊ 0⤋
A water cooler is only effective when there is evaporation.
Evaporation is higher when the humidity is low.
During the rainy season the humidity is high therefore evaporation is low and the cooler cannot not work well.
2006-07-18 01:43:16 · answer #2 · answered by ijcoffin 6 · 0⤊ 0⤋
I think that you are referring to the older evaporative coolers that depend on water evaporating from a canvas or cloth hanging in a pool of water to get cool, and then blow air over the cooled cloth to get the room cool. The reason that they don't work well in wet weather is that the air already has just about all the moisture that it can hold already, so no more can be added from evaporation. The cloth doesn't get any cooler, and therefore no cooler room. I hope that this answers your question. It's all evaporation, and its' cooling effect. Blow on water on your arm to see the effect.
2006-07-18 01:45:28 · answer #3 · answered by Joseph G 3 · 0⤊ 0⤋