The difference between sensible heat storage and thermal energy storage

What is the difference between sensible thermal storage and latent heat storage?

Sensible thermal storage includes storing heat in liquids such as molten salts and in solids such as concrete blocks, rocks, or sand-like particles. Latent heat storage involves storing heat in a phase-change material that utilizes the large latent heat of phase change during melting of a solid to a liquid.

Why do sensible heat storage systems require large volumes?

However, in general sensible heat storage requires large volumes because of its low energy density (i.e. three or five times lower than that of latent and thermochemical energy storage systems, respectively) . Furthermore, sensible heat storage systems require proper design to discharge thermal energy at constant temperatures. Fig. 1.

How does thermal energy storage work?

By far the most common way of thermal energy storage is as sensible heat. As fig.1.2 shows, heat transferred to the storage medium leads to a temperature in-crease of the storage medium. A sensor can detect this temperature increase and the heat stored is thus called sensible heat. Fig. 1.2.

What is sensible heat storage?

Sensible heat storage is the process of storing energy by increasing the temperature of a medium having a high heat capacity, such as water or rock [66,67]. Sensible heat storage materials can be classified into two main types, as shown in Fig. 8. Fig. 8. Classification of sensible heat storage materials.

What are the different types of thermal energy storage?

Sandip S. Deshmukh Thermal energy may be stored in various forms, with the most common being sensible heat storage, which uses solid and liquid materials such as rock, sand, clay, soil, water, and oil. Sensible heat storage involves a change in the temperature of the medium, which may be either raised or reduced.

What are the advantages and limitations of sensible heat storage?

The key advantages and limitations of sensible heat storage are as follows [68–71]: At a constant temperature, energy cannot be stored or released. The heat storage and release process are more efficient since it does not convert a solid or crystalline structure into a liquid. Easy to load and unload.