This thesis investigates the development of a reactor concept for a thermochemical energy storage system, using calcium oxide and hydroxide. Such a high temperature heat storage is based on the reactants’ bond-dissociation energy. Experimental results with a fluidized bed reactor show a high-quality fluidization of the storage material. Full technical conversion is achieved over 20 reaction cycles. However, particle fragmentation is observed. The results suggest that the cyclization makes the storage material more porous and fragile. Consequently, the break-up of particles occurs due to mechanical and reaction related stress during operation.
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This thesis investigates the development of a reactor concept for a thermochemical energy storage system, using calcium oxide and hydroxide. Such a high temperature heat storage is based on the reactants’ bond-dissociation energy. Experimental results with a fluidized bed reactor show a high-quality fluidization of the storage material. Full technical conversion is achieved over 20 reaction cycles. However, particle fragmentation is observed. The results suggest that the cyclization makes the st...
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