Salt hydrate–based gas-solid thermochemical energy storage: Current progress, challenges, and perspectives

Wei Li, Jiří Jaromír Klemeš, Qiuwang Wang and Min Zeng

Renewable and Sustainable Energy Reviews, 2022, vol. 154, issue C

Abstract: Due to the prominent advantages of high energy density and long-term energy conservation ability, salt hydrate-based gas-solid thermochemical energy storage (TCES) is a promising technology for effectively employing low-grade energy such as industrial waste heat and minimising fossil fuel-based sources depletion. As an innovative thermal energy storage technology that has drawn great attention from scholars in recent years, it still remains in the stage of a laboratory-scale investigation. This study establishes a reasonable classification of salt hydrates-based TCES systems, discusses the properties and performance regulation strategies of materials, types of reactors, applications, heat and mass transfer process, reaction mechanisms, and also provides critical comments and outlooks on this adsorption TCES technology. It is comprehensively elaborated and evaluated in the following steps.

Keywords: Salt hydrate; Thermochemical energy storage; Gas-solid reaction; Thermochemical materials; Thermochemical performance; Reactor; Theoretical model (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (15)

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DOI: 10.1016/j.rser.2021.111846

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