Thermal Energy Storage Tank For Chilled Water

It operates on the premise of storing thermal energy typically in the form of chilled water during off peak hours when energy cost and demand are low.

Thermal energy storage tank for chilled water. This system utilizes only the sensible heat of water for cooling energy storage in a chilled water storage tank and discharges the stored coldness for air conditioning during the on peak time. These specialty tanks are insulated and designed with special internal diffuser systems. During that time chilled water is collected and stored in a thermal energy storage tank. In nc state s latest move to reduce campus energy costs timing is everything.

Adaptable to almost any chilled water district cooling system. Tes tanks are the reservoirs used to store energy in chilled water district cooling systems. Equivalent to a seven story swimming pool holding more than 3 million gallons of water thermal energy storage enables the university to create chilled water for campus buildings at night when electricity rates are lowest and store the chilled water for use during the day when electricity rates are highest. A stratified water tes system is one of the most economical efficient and widely used forms of energy storage available on the market today.

Thermal energy storage has been a proven technology for over three decades. Tes is designed to take advantage of cheaper energy rates during off peak hours which is typically at night. The thermal energy is then dispatched during times of peak demand or when energy costs are high in order to reduce our client s overall electrical costs or decrease our client s demand on the. A tes tank reduces the operational cost and the required capacity of cooling plants increasing the efficiency of the cooling plant and reducing the capital cost.

The key technology of cwstorage system is the diffuser design which ensures thermal stratification of chilled water and warm water by density difference. Warm and chilled water enters and exits the tank through diffusers located at the top and bottom of the tank. Thermal energy storage tes thermal energy storage commercialized over 30 years ago thousands of installations throughout the gcc world and the u s. March 10 2020 carla davis.

Chilled water tes concept tank. How thermal energy storage works. In addition to storing and chilling plant water the tank can store fire protection water or thermal energy from waste heat. Thermal energy chilled water or hot water is produced during periods of off peak electrical demand or usage collected in a thermal energy storage tank then withdrawn and distributed to the facility during on peak periods.

Then during peak rate times the cooler water is integrated into the cooling system to provide greater efficiency and reduce overall costs.