Evaporative Cooling; On, Off and Overflow
Evaporative systems are one variety of condenser type which may be installed as part of an industrial cooling system.
The role of an evaporative condenser is to convert refrigerant from a heated vapor to a cooled liquid, or to cool some type of closed loop. The refrigerant is contained within a closed circuit, and when water is sprayed on the exterior surface of the refrigerant tubing, cooling takes place according to the principles of heat rejection.
Benefits of Evaporative Condensers
Evaporative condensers have potential advantages over a cooling tower, under the right circumstances. They may consume less electricity; they take up less floor space; and because they have fewer components, they are easier to install and maintain.
Maintaining Water Level
Evaporative condensers run on small volumes of water, which means there’s a narrow acceptable margin in terms of the water level. Basin float level controls are important, especially in circumstances when the condenser runs intermittently.
Under such circumstances, when the spray pump is off the entire volume of the water in the tower accumulates in the basin. When the spray pump comes on, the water level in the basin drops as water goes up into the tower and circulates; so the level controls admit more water to maintain the prescribed level.
