Closed Circuit Cooling Water System

There are two different types of cooling towers.

Closed circuit cooling water system. P rimary cooling at steam generating power plants and many other heavy industries is a critical aspect of operation and upsets can cost a great deal in lost efficiency and production. Bac s combined flow closed circuit cooling towers utilize parallel flow of air and spray water over the coil and crossflow air water flow through the fill. Certain processes require a closed loop whereby the process water for cooling does not come in contact with the atmospheric air. With very real concerns about the higher water consumption of open loop systems closed loop cooling technology is gaining broader appeal every year.

A closed loop cooling system can exchange heat with the main cooling water system in conventional tube and shell heat exchangers or plate and frame heat exchangers. Over the past decade evapco has pioneered innovation in the closed circuit cooler market along with advancements and refining of tried and true open loop equipment options. Both types of towers serve the same purpose but they go about cooling the water in different ways. Our closed loop water treatment solutions address the problems of corrosion fouling biofouling and scaling that.

Cooling towers extract waste heat to the atmosphere through the cooling of a water stream to a lower temperature. This prevents the cooling water from picking up particles that may not get filtered or even dissolved gases. As shown in the diagram below raw water is picked up through the drive pickup or through a hull mounted pickup if present it will pass through a sea strainer to clean debris out of the water. Failure of a closed system has the potential to shut down a portion if not all of the plant.

But often overlooked are auxiliary closed cooling water ccw systems which also serve vital functions. In a closed system water circulates in a closed cycle and is subjected to alternate cooling and heating without air contact. The process involves cooling the water inside the tubes in addition to a refrigerant. The full closed cooling system is designed to circulate cooling water through the block and exhaust maniolds.

A closed circuit system keeps the water completely enclosed inside pipes. Water treatment services is a leading independent uk water treatment company offering a full range of expert services for the management of closed systems closed loop heating cooling and closed circuit chilled water systems. Closed circuit cooling towers and open circuit cooling towers. Heat absorbed by the water in the closed system is normally transferred by a water to water exchanger to the recirculating water of an open recirculating system from which the heat is lost to atmosphere figure 32 1.