Closed Loop Water System

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.

Closed loop water system. The water in your cooling or heating system dramatically affects performance. Sludge that is caused by corrosion and bacterial activity blackens the water and causes sediments to develop on all parts of the system. Not only should closed loops be chemically treated to control corrosion and microbiological growth they should also include a side stream filter to remove suspended solids. Gibney states that closed loop success can only be achieved by removing the used chemistry out of the water on each pass through the system so that it can be used again and again.

Closed loop technology actually involves treating 100 percent of the water captured in the system to use repeatedly while minimizing water entering and discharging from the system. The importance of a closed loop water system for water treatment. Even though closed loop systems are theoretically closed suspended solids can. If you regularly monitor and treat the water in the cooling mechanism it will reduce problems from water deposits.

Examples of closed loop systems include hot oil circuits cooling chilled water systems hot water heating and air conditioning systems. The valves that are usually found in the closed systems are the check valve pressure reducing valve mixing valve backflow preventer and other. A closed loop water system is one in which the water is recirculated in a closed loop without evaporation or exposure to the atmosphere. A closed water heater system means that the hot water cannot expand beyond the valves and mix with the municipal water.

The only make up water normally needed is replace water loss from leakage at pump seals expansion tank overflow or surface evaporation from system vents. Figure 1 provides an illustration of a closed loop fresh water cooling system consisting of heat exchangers circulating pumps orifice plates and over 300 m of pipework.