Advances in Solid Particle Thermal Energy Storage: A Comprehensive Review

Guang Zeng (), Shijie Hou, Qiankun Guo, Yongtie Cai and Mobei Xu
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Guang Zeng: School of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China
Shijie Hou: School of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China
Qiankun Guo: School of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China
Yongtie Cai: Nanyang Environment & Water Research Institute, Nanyang Technological University, Singapore 639798, Singapore
Mobei Xu: SPIC Northeast Energy Technology Co., Ltd., Shenyang 110179, China

Sustainability, 2025, vol. 17, issue 16, 1-25

Abstract: Solid particle thermal energy storage technology demonstrates extraordinary thermal stability across wide temperature ranges and possesses significant cost-effectiveness that meets stringent economic requirements for long-duration energy storage. These distinctive characteristics enable this technology to continuously support increasing decarbonization demands and drive the strategic progression of sustainable energy transformations. This review work conducts a thorough analysis of three representative reactor types: packed beds, moving beds, and fluidized beds, focusing on how particle thermophysical properties affect heat transfer and storage performance. The paper analyzes pressure drop and heat transfer correlations to reveal the coupling effects between particles and working fluids that impact system efficiency. By comparing hydrodynamic behavior across different reactor types, the study identifies optimization strategies and technical challenges. The review paper concludes by outlining future research directions for enhancing system efficiency, supporting industrial deployment, and facilitating integration with next-generation renewable energy technologies.

Keywords: solid particle; thermal energy storage; packed beds; moving beds; fluidized beds; sustainability (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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