Afflerbach, Sandra
Preferred name
Afflerbach, Sandra
Alternative Name
formerly Sandra Schäfer
ORCID
Scopus Author ID
56575039900
2 results
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Publication Access status: Metadata only , Effect of diameter on the stability of granulated Ca(OH)2 during thermochemical cycling in a fixed bed reactorOne solution to reduce CO2 emissions and advance climate protection in the heat sector is the utilization of thermochemical energy storages (TCES) based on the material Ca(OH)2 to store waste heat or surplus electricity. In contrast to powdered materials, the material in granular form has a lower tendency to be affected by agglomeration effects and provides higher energy density and thermal conductivity. This results in enhanced durability, stability, and efficiency of the storage, making the storage material Ca(OH)2 in granular form more suitable for TCES applications. This work investigates the performance of a chemically unmodified granular sample over 15 storage cycles in a test fixed bed reactor and evaluates whether its performance and durability are already sufficient for potential applications without further modification. In addition, different granule samples with different diameters were also cycled to determine whether the selection of certain diameter sizes can improve the stability of the granules. Furthermore, different methods were used in the pre- and post-analyses to assess the stability of the samples. The comparison of three tested granular samples with different diameters reveals that the sample with a diameter of 2–4 mm has the highest durability and reactor performance. Despite a decrease in mechanical strength, this configuration could be suitable for applications with a small number of storage cycles, such as seasonal storages.Source Type:Article2 - Some of the metrics are blocked by yourconsent settings
Publication Access status: Metadata only , Optimization of the Coating Process of a Ca(OH)<sub>2</sub>‐Based Thermochemical Energy Storage MaterialA promising candidate for a thermochemical storage system implemented into district heating is a previously developed core‐shell material based on CaO/Ca(OH) 2 . Proceeding from the preliminary manufacturing process, this work aims to optimize relevant material properties as mechanical stability and shell uniformity, by varying defined parameters during a reproduceable coating procedure, ready for commercial upscaling.Source Type:Article
