Thermochemical heat storage is a promising system that offers significantly higher thermal energy storage densities. During the charge/discharge cycling, the powder tends to agglomerate, which leads to a decrease in system efficiency. Researchers at CIC energiGUNE, in collaboration with DLR, have developed a method to prevent the powder agglomeration during the charge/discharge cycles of gas-solid reactions used in thermochemical energy storage application.
This method is based on partial coating of a surface of particles of a powdered base material (reactant) with a coating material (nanoparticles). The coating of the reaction powder bed also reduces the interparticle adhesion forces, which improves the permeability and the flow behavior of the coated powder compared to the base material.
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Michel Armand (CIC energiGUNE), Teófilo Rojo (CIC energiGUNE), Gurpreet Singh (CIC energiGUNE), Laida Otaegui (CIC energiGUNE), Frederic Aguesse (CIC energiGUNE) and Lucienne Buannic (CIC energiGUNE)
Yasmina Portilla Nieto (CIC energiGUNE), Abdelali Zaki (CIC energiGUNE), Estibaliz Aranzabe Basterrechea (Fundación Tekniker), Marta Hernáiz (Fundación Tekniker) and Abdessamad Faik (CIC energiGUNE)
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