Ice storage

Latent heat storage (LHS) takes advantage of the energy absorbed or released at constant temperature during a phase change of the material. In most cases, solid/liquid phase change is utilised, with melting used to store heat and solidification used to release heat. For low temperature storage, water (ice storages) and aqueous salt solutions (for temperatures below 0 °C) have been commercialised and deployed on a large scale, e.g. the phase change of water at 0 °C is used for storage of cold for air conditioning and supply of process cold. Many low-temperature products using latent heat technology in buildings, mini-storage for food, and cooling for medication have been commercialised (TRL 9).