2026-04-14T07:22:31Zhttps://recercat.cat/oai/request

oai:recercat.cat:10459.1/646482024-12-05T22:38:04Zcom_2072_3622col_2072_479130

Assessment of the hydration/dehydration behaviour of MgSO4∙7H2O filled cellular foams for sorption storage applications through morphological and thermo-gravimetric analyses Calabrese, Luigi Brancato, Vincenza Palomba, Valeria Frazzica, Andrea Cabeza, Luisa F. Composite foams Thermochemical energy storage Sorption storage Salt hydrate In this article, the relationship between morphological characteristics and de/hydration performance was assessed on an innovative magnesium sulphate heptahydrate filled silicone composite foam for sorption thermal energy storage applications. Hydration and dehydration aspects of the foam were investigated by varying salt hydrate filler content. The composite foam showed a mixed open/closed cellular structure, whose morphology was dependent on the filler content present in the formulation. Low salt content foams (40 wt% and 50 wt% salt content) highlighted a predominantly open cell structure with a strong interconnection between bubbles. High salt content foams (60wt% and 70 wt% salt content) showed a structure for which the cellular interconnections were more limited. Compared to pure salt, it was evidenced that salt filled composite foams have a significant de/hydration capacity. The water/salt reaction is not hindered by the foaming process. Based on morphological and thermo-physical properties of the foam a simplified vapour diffusion flow process in composite foams was proposed. The present work was partially funded by PON “Ricerca e Competitività 2007-13” PON03PE_00206_2 S5 - Smart Small Scale Solar Systems. The work was partially funded by the Spanish government (ENE2015-64117-C5-1-R). The authors would like to thank the Catalan Government for the quality accreditation given to her research group (2017 SGR 1537). GREA is certified agent TECNIO in the category of technology developers from the Government of Catalonia. 2018-08-28T07:26:18Z 2020-07-24T22:23:32Z 2018 2018-08-28T07:26:18Z info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion https://doi.org/10.1016/j.susmat.2018.e00073 2214-9937 http://hdl.handle.net/10459.1/64648 http://hdl.handle.net/10459.1/64648 eng info:eu-repo/grantAgreement/MINECO//ENE2015-64117-C5-1-R/ES/IDENTIFICACION DE BARRERAS Y OPORTUNIDADES SOSTENIBLES EN LOS MATERIALES Y APLICACIONES DEL ALMACENAMIENTO DE ENERGIA TERMICA/ Versió postprint del document publicat a https://doi.org/10.1016/j.susmat.2018.e00073 Sustainable Materials and Technologies, 2018, vol. 17, pp.1-e00073 - pp.8 cc-by-nc-nd (c) Elsevier, 2018 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier