evaporative cooler?

Subject: evaporative cooler?
Name: ludicrous
Date: 7/20/2002 12:59:42 AM (GMT-7)
IP Address: 138.67.74.229
In Reply to: Swamp cooler? (nt) posted by Ben
Message:

they have multiple names, pretty simple system -- you dribble water through a mesh-net filter (it honestly looks like a quarter-inch thickness of loosely-packed ramen) and pull air across the filter via a squirrel-cage fan. Evaporation causes the air to lose heat as it passes, and the saturated filter eliminates a fair amount of dust, too. A float valve connected to a water supply keeps the cooler's reservoir full.

Obviously, this only works well in dry climates, and while it is a very inexpensive system, some people may find the cooled air to be clammy.

The effect is sometimes used to cool and humidify greenhouses, too.