Kiribati South Tarawa Renewable Energy Project

What is a cold energy storage system?

The cold energy storage system is an active method of reducing the energy consumption of air conditioning systems. This method shifts the peak electricity consumption from peak hours (high load) to off-peak hours (low load). Materials used for cold energy storage are known as PCM.

How does a cold storage system work?

The cold energy, generated from the produced condensate in cold storages, is utilized to cool the air and pre-cool the products. This paper investigates the energy, exergy, and economic performance of both the charge and discharge processes of the energy storage system, as well as the overall integrated system.

What is cold thermal energy storage (CTEs)?

Cold thermal energy storage (CTES) is a technology that relies on storing thermal energy at a time of low demand for refrigeration and then using this energy at peak hours to help reduce the electricity consumption of the refrigeration system.

How can cold energy storage improve cooling system reliability?

Economic assessments focus on investment, operation, and lifecycle costs. Cold storage technology is useful to alleviate the mismatch between the cold energy demand and supply. The integration of cold energy storage in cooling system is an effective approach to improve the system reliability and performance.

How can a cold energy storage system be optimized?

The combination of these three evaluations - energy, exergy, and economic - can help in designing and developing optimal cold energy storage systems. These evaluations not only improve the technical performance of the system but can also lead to long-term reductions in costs and energy consumption. Fig. 2.

How a cold energy storage tank helps in reducing the consumption of chillers?

The cold energy storage tank can help in reducing the consumption of chillers, because when the demand is low, the produced cold water is used as a tank charger, and when the demand is high, this system helps the chiller and water cools. The system used is the ice thermal storage type, which uses ice as a cold energy storage.