New highly efficient regeneration process for thermochemical energy storage

The influence of gas–solid reaction kinetics in models of thermochemical heat storage under monotonic and cyclic loading

“…This type of kinetics is desired in heat storage devices that, aside from having a high capacity, are intended for high-power applications [16]. On the other hand, should a material be investigated whose kinetic behaviour turns out to be the limiting factor during reactor operation, the kinetic model will gain importance and a detailed characterisation is advised.…”

“…For long-term storage, the device would be fully charged, followed by a prolonged storage period to be later discharged when needed [7,15,16]. On the other hand, the storage device can be used for short term peak shaving, load levelling or fast reserve capacity applications [17,4].…”

Comparison of closed and open thermochemical processes, for long-term thermal energy storage applications

“…According to assumptions (g) and (h), the energy balance of the reactive layer can be simplified to equation (23). The energy balance of the heat collector has to be added (Equation (24)).…”

“…The feasibility of open thermochemical storage system is currently investigated [11,[18][19][20][21][22][23], and seems promising [24]. However, up to date there is no completed seasonal storage based on a thermochemical process [3,17].…”

A novel solid–gas thermochemical multilevel sorption thermal battery for cascaded solar thermal energy storage

“…Solid-gas thermochemical sorption processes have been widely discussed for refrigeration in the past decades [4], and this technology has been paid much attention in recent years for thermal energy storage due to its little heat loss during long-term storage period [5][6][7][8]. Solid-gas thermochemical sorption process stores thermal energy in the form of bond energy of chemical potential using a solid reactive salt and a gas, thus, this kind of storage method usually has the advantage of high energy density in comparison with conventional sensible heat and latent heat energy storage, liquid-gas absorption and solid-gas physical sorption energy storage [9,10].…”