A Review on the Properties of Salt Hydrates for Thermochemical Storage

Solar energy is capable of supplying enough energy to answer the total demand of energy in dwellings. However, because of the discrepancy between energy supply and energy demand, an efficient way of storing thermal energy is crucial. Thermochemical storage of heat in salt hydrates provides an efficient and compact way of storing solar energy. The properties of the salt hydrates determine the storage capacity, operating conditions and cost of the thermochemical storage system. In this paper an overview of the properties of the most promising candidates for thermochemical storage for our purposes is given.