68-11: Water Treatment for Cooling Towers

Cooling towers are cleverly contrived devices that transfer. Heat from a source to the atmosphere. They take advantage of the tremendous heat absorbing ability of water as it evaporates. To illustrate > one pound of water absorbs one BTU of heat in changing temperature from 89 ° to 90° F. The water gets warmer but remains liquid. By contrast, one pound of water absorbs approximately 1000 BTU's in changing state from liquid to vapor, at 90F.