St. Phatty
Active member
A little explaining on how it works.. Although the cooler runs on 12volt, a 110v> 12volt 200 watt power converter is included to run it off 110v while parked, and save the batt.. I used a 5 gal bucket as a reservoir and a 12v bilge pump to recirculate the water over the pad... This proto-type was used for testing different type pads for air flow volume and temp data... Using PWM speed controllers, air flow and and water feed are controllable from 0-100% ... On a dry day it'll deliver air at 26-29*f below ambient air.. When I say dry I mean 2-8% humidity, with an average of 6% at days end..
Max air flow on this model was 8-10 cubic ft a second.... About 750 a minute.. Measured with a cheap anemometer at +/- 3.5%.. and depending on what pad was being tested... Even with the error factor, the temp. shift between conditioned air and ambient air should be close to accurate.. On the first morning, 10:30am tested ambient air 92*f humidity 13%, fan on low, air off the cooler 65*f...
My AC failed a week before the super hot weather when it got up to 114 F.
I put a sprinkler on the roof the house, and the garage.
Kept temps under control.
Evaporative Cooling works great !