<a href=showthread.php?s=&postid=9937599#post9937599 target=_blank>Originally posted</a> by nanokiper
My evaporative cooling is operating like cooling tower commonly used for water cooling of manufacturing plants. Cooling effect is dependent on air dryness, humid air in the sump where the cooler is located is continuously replaced by fresh air. From the main tank, water enter the drip tray and to the cooling pads. The pads are actually increasing the air and water contact surface and at the same time decreasing water drip rate, bigger area and longer time of cooling improve heat exhange.