Performance analysis of an integrated energy storage and energy upgrade thermochemical solid–gas sorption system for seasonal storage of solar thermal energy

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

“…Especially, the proposed thermochemical multilevel sorption thermal battery can also works as a heat transformer when the evaporation temperature of refrigerant during the discharging phase is higher than its condensation temperature during the charging phase. In this case, it would have the capacity of integrated energy storage and energy upgrade of solar thermal energy, making heat output temperature higher than heat input temperature [17,19,21]. Tables 1-3.…”

“…It has been proved that composite sorbent is a promising material for sorption thermal energy storage, and it can improve sorption capacity significantly. Solid-gas thermochemical sorption energy storage can be used for space heating and cooling of building [16], long-term seasonal energy storage [17,18], industrial waste heat recovery [19], and solar power plants [20]. Moreover, it has the capacity of multifunctional energy application for integrated energy storage and energy upgrade, combined cooling and heating supply, and waste heat recovery [21].…”

Gas–solid thermochemical heat storage reactors for high-temperature applications

“…Several CHPs can be integrated into a multistep CHP. Li et al [81] proposed a dual-mode thermochemical heat storage system for the seasonal storage of solar thermal energy.…”

Experimental investigation on a dual-mode thermochemical sorption energy storage system

“…The working principle of advanced dual-mode seasonal solid-gas thermochemical sorption energy storage system was introduced in detail in the previous theoretical research [25]. The system consists of two energy storage units, and every unit mainly contains one solid-gas reactor and one refrigerant vessel.…”

“…Moreover, sorption thermal battery can achieve cascaded thermal energy storage to enhance the versatility and working reliability of solar heat storage system by using solid-gas thermochemical multilevel sorption processes with several reactive salts [24]. In order to improve the usability of seasonal thermochemical sorption energy storage, Li et al [25] proposed a novel dualmode solid-gas thermochemical sorption energy storage system based on metal chloride and ammonia for seasonal solar thermal storage. The system is comprised of a lowtemperature unit and a high-temperature unit, and it has two discharging modes according to different ambient temperatures in winter.…”