Energy storage equipment 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.

What is thermal energy storage?

Thermal energy storage (TES) technologies heat or cool a storage medium and, when needed, deliver the stored thermal energy to meet heating or cooling needs.

What is the ice build Chiller & Ice storage capacity?

The design day peak cooling load is 24,640 kW and the electric on-peak demand period is 10 hours (10:00 AM to 20:00 PM). The ice storage capacity is 107,360 kW-hrs. The ice build chiller and its accessories do not operate during the demand period. The conventional chillers provide cooling for the non-peak hours.

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.

What temperature does a conventional chiller operate at?

The conventional chillers will operate with the same delta-T and the same temperature as the ice storage system. Typically, the conventional chillers can operate at the larger delta-Ts (18°F - 20°) (10°C – 11.1°C) and supply chilled water temperatures of 34°-36°F (1.11° – 2.22°C) making them compatible with the ice storage system.

How does a glycol chiller work?

The chiller operates during non-peak hours cooling a glycol solution to sub-freezing temperatures which is then circulated through the ice storage coils. Ice forms around the external surfaces of the coils, and a full storage charge is reached when the ice is typically 1.1 to 1.5 inches thick.