Water Chiller Refrigeration System

Once through cooling may be used but water costs and environmental restrictions dictate recirculating system utilizing cooling towers to reject the heat into the atmosphere.

Water chiller refrigeration system.

In industrial and commercial refrigeration systems the heat is usually rejected to water. From the chilled water into the recirculating water. A refrigeration circuit and a fluid circuit. In most process cooling applications a pumping system circulates cool water or a water glycol solution from the chiller to the process.

Water cooled chillers are more efficient because they condense depending on the ambient temperature bulb temperature which is lower than the ambient dry bulb temperature the lower a chiller condenses the more efficient it is. This cool fluid removes heat from the process and the warm fluid returns to the chiller. The compressor the condenser the expansion valve and the evaporator. This liquid can then be circulated through a heat exchanger to cool equipment or another process stream such as air or process water.

A chiller is a machine that removes heat from a liquid via a vapor compression adsorption refrigeration or absorption refrigeration cycles. A chiller uses a vapor compression mechanical refrigeration system that connects to the process water system through a device called an evaporator. The fluid circuit is typically comprised. Refrigerant circulates through an evaporator compressor condenser and expansion device of a chiller.

Industrial water or glycol chiller systems contain two main circuits. Water cooled chiller systems have a cooling tower thus they feature higher efficiency than air cooled chillers. The process water is the means by which heat transfers from the process to the chiller.