Principles and application examples of cold and hot energy storage

What is heat/cold storage?

In active systems, high-temperature (heat storage) or low-temperature (cold storage) thermal energy can be stored within dedicated tanks or inside the channels of the air-conditioning system to future use. There are various applications for long-term or short-term heat/cold storage in buildings.

What are examples of heat storage?

Traditionally, heat storage has been in the form of sensible heat, raising the temperature of a medium. Examples of such energy storage include hot water storage (hydro-accumulation), underground thermal energy storage (aquifer, borehole, cavern, ducts in soil, pit) , and rock filled storage (rock, pebble, gravel).

How is heat stored?

Storage of heat is accomplished by sensible and to a lesser extent latent thermal energy storage in many applications, and less research is available on chemical and thermochemical heat storage. The key enabling technologies in most storage systems are in systems engineering and material science.

What are thermal energy storage applications?

Policies and ethics In this particular chapter, we deal with a wide range of thermal energy storage (TES) applications from residential sector to power generation plants. Some practical applications of sensible heat and latent heat TES systems into heating and cooling systems are...

Can thermal energy storage be used in non-residential buildings?

3.3 Application evaluation While use of thermal energy storage in the non-residential building sector has not yet seen widespread use, there are key examples of established technologies. The benchmarks highlighted in this report all use the latent heat of fusion of water to store thermal energy either daily or seasonally.

Why are sensible heat materials important in cold storage system?

Due to sensible heat materials can absorb and release heat in a wide range of temperatures, the application is more flexible. In summary, sensible heat materials play an important role in cold storage system with their high specific heat capacity.