Advantages and disadvantages of latent heat storage
Cold storage using latent heat

To illustrate the advantages of latent heat storage, we can illustrate (figure 1) the consumption histogram of an air-conditioning system according to the time of day [25]. Of course, there is virtually no consumption at night, whereas consumption peaks in the afternoon. In figure 2, night-time storage is envisaged, with daytime de-storage used in conjunction with direct generation. The graph shows that the main advantages are :

• electricity consumption at night to take advantage of special storage tariffs, and use of destorage at times when electricity is expensive;

• an investment in a refrigeration unit that will regularly operate at...