Horizontal energy storage water chiller container

What is chilled water thermal energy storage (TES)?

Chilled water thermal energy storage (TES) has proven to be aneffective technology for managing central cooling plants in some climates.

How does a chilled water cooling system work?

Since the water remains in liquid form, it qualifies as a sensible storage medium. The chilled water cooling system utilizes theTES tank as the main storage container in a process that involves CHARGING and DISCHARGING processes. TES charging mode involves an overnight process whereby the chiller stores cooling energy in the TES tank.

What does a chiller plant do?

At the end of the peak demand period, the chiller plant is used to replenish the ice in the storage tank as well as provide the required chilled water to the facility process cooling loads and HVAC cooling loads between 6 pm and 6 am.

How does a partial-storage chiller work?

With a partial-storage system, the chiller can be 40 to 50 percent smaller than other HVAC systems, because the chiller works in conjunction with the Ice Bank tanks during on-peak daytime hours to manage the building’s cooling load. During off-peak nighttime hours, the chiller charges the Ice Bank tanks for use during the next day’s cooling.

What is thermal energy storage & cooling?

Thermal energy storage and cooling systems can be tailored to lengthen the life cycles and improve efficiency of large-scale battery energy storage systems.

What is a naturally stratified chilled water storage tank?

In a naturally stratified chilled-water storage tank, cold and warm volumes of water are stored together without a physical barrier. A stable density gradient prevents the mixing of the two volumes. The proper design of diffusers is able to maintain the stable and reduced gradient during the complete operation of the tank.