Novel multiscale model for grain-packed inorganic salt hydrate-based open thermochemical storage for low-temperature space heating applications
This study presents the development, validation, and application of a multiscale numerical model for an open thermochemical energy storage (TCES) reactor using SrBr2·6H2O as the representative reactive medium. The objective is to accurately capture and predict the coupled phenomena of heat and mass transfer occurring across two physical scales—the reactor bed and individual salt grains—during hydration and dehydration cycles. Experiments are conducted on a rectangular stainless-steel reactor filled with SrBr2·6H2O under controlled inlet air conditions.