What type of system uses chilled water for cooling?

The Chilled Water Refrigeration System is specifically designed to utilize chilled water as a medium for cooling. In this type of system, water is cooled by a chiller and then circulated through pipes to air handling units or fan coil units, where it absorbs heat from the air in a building. This process effectively lowers the temperature of the treated space.

Chilled water systems are highly efficient for larger buildings, as they allow for centralized cooling, which can enhance energy savings and facilitate the management of cooling loads. Additionally, the chilled water can serve multiple zones within a facility, allowing for greater control and flexibility in temperature regulation.

The other types of systems listed utilize different mechanisms for cooling. For instance, a refrigerated air system typically refers to systems using refrigerant directly to cool the air. Direct expansion systems also rely on refrigerants in the cooling process. An evaporative cooling system utilizes the evaporation of water to remove heat, which operates differently from chilled water systems. Thus, the Chilled Water Refrigeration System is the most accurate choice for the described function.