Advances and opportunities in thermochemical heat storage systems for buildings applications

K. Kant and R. Pitchumani

Applied Energy, 2022, vol. 321, issue C, No S0306261922006547

Abstract: Solar energy utilization via thermochemical heat storage is a viable option for meeting building heating demand due to its higher energy storage density than latent or sensible heat storage and the ability for longer duration storage without loss because energy is stored in chemical bonds. However, the superior advantages are challenged by barriers such as poor heat and mass transport that impede its commercialization and broad application. Motivated by the potential for thermochemical energy storage, several research efforts have been directed toward addressing the associated technical challenges resulting in a vast number of research articles published in recent years. The purpose of this review is to summarize the most recent developments in thermochemical energy storage system design, optimization, and economics, emphasizing open and closed reactors and prototype systems for building applications. Different reactor bed designs of thermochemical heat storage and its building application are analyzed. Optimization and techno-economics of various thermochemical heat storage systems are also presented. Even though most of these systems are still in the research and development stage, some of them may be ready for near-term commercialization. The review concludes with a perspective on future research challenges to fully address the opportunities offered by thermochemical energy storage.

Keywords: Thermochemical energy storage; Solar energy; Buildings energy efficiency; Optimization; System design (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (14)

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DOI: 10.1016/j.apenergy.2022.119299

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