Thermal energy storage chiller

What is the Trane® thermal battery air-cooled chiller plant?

The Trane® Thermal Battery air-cooled chiller plant is a thermal energy storage system, which can make installation simpler and more repeatable, saving design time and construction costs.

How does a chiller system work?

A secondary loop that feeds chilled water to the air handler coils. And the last piece is to add in the thermal energy storage tank tied into the primary chilled water loop. The system can run using just the chillers, or the chiller could be run at night to charge the storage tank when electrical rates are cheaper.

What is cool thermal energy storage?

Cool Thermal Energy Storage is a new application of an old idea that can cut air conditioning energy costs in half while preparing your building for the future. Air conditioning of commercial buildings during summer daytime hours is the largest single contributor to electrical peak demand.

How do thermal energy storage systems work?

Thermal energy storage systems utilize chilled water produced during off-peak times – typically by making ice at night when energy costs are significantly lower which is then stored in tanks (Fig. 2 below).

What is a cool TES chiller?

By storing cooling capacity, Cool TES technologies can meet the same cooling demand as a non-storage system during a given period, but with a flatter electricity profile and smaller peaks. Cool TES technologies allow chillers to be sized more closely to the average load rather than the peak load, thereby reducing chiller size and capital cost.

What are thermal energy storage strategies?

There are two basic Thermal Energy Storage (TES) Strategies, latent heat systems and sensible heat systems. Stratification is used within the tank as a strategy for thermal layering of the stored water. Colder water is denser and will settle toward the bottom of the tank, while the warmer water will naturally seek to rise to the top.