This thesis experimentally investigates critical aspects of thermochemical energy storage using CaO and Ca(OH)2 in a fluidized bed reactor. It reveals the dominance of reaction-related attrition effects and highlights the pivotal role of excess velocity for system design. Addressing material degradation, it stresses the need for enhanced source material pre-processing, to prolong system longevity. Finally, the thesis demonstrates a successful and scaleable make-up strategy, ensuring sustained operation by replacing degraded material across cycles. Challenges in defining stable operational points due to evolving bulk properties are outlined, but the material exchange approach offers a cost-effective solution for industrial-scale operations.
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This thesis experimentally investigates critical aspects of thermochemical energy storage using CaO and Ca(OH)2 in a fluidized bed reactor. It reveals the dominance of reaction-related attrition effects and highlights the pivotal role of excess velocity for system design. Addressing material degradation, it stresses the need for enhanced source material pre-processing, to prolong system longevity. Finally, the thesis demonstrates a successful and scaleable make-up strategy, ensuring sustained op...
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