dc.creator | Arcenegui Troya, Juan Jesús | es |
dc.creator | Lizana Moral, Francisco Jesús | es |
dc.creator | Sánchez Jiménez, Pedro Enrique | es |
dc.creator | Perejón Pazo, Antonio | es |
dc.creator | Vañes Vallejo, Andrea | es |
dc.creator | Pérez Maqueda, Luis A. | es |
dc.date.accessioned | 2024-05-29T10:32:45Z | |
dc.date.available | 2024-05-29T10:32:45Z | |
dc.date.issued | 2024-03-10 | |
dc.identifier.citation | Arcenegui Troya, J.J., Lizana Moral, F.J., Sánchez Jiménez, P.E., Perejón Pazo, A., Vañes Vallejo, A. y Pérez Maqueda, L.A. (2024). Sodium acetate-based thermochemical energy storage with low charging temperature and enhanced power density. Journal of Energy Storage, 86, 111310. https://doi.org/10.1016/j.est.2024.111310. | |
dc.identifier.issn | 2352-1538 | es |
dc.identifier.issn | 2352-152X | es |
dc.identifier.uri | https://hdl.handle.net/11441/159365 | |
dc.description.abstract | The electrification of heat necessitates the development of innovative domestic heat batteries to effectively
balance energy demand with renewable power supply. Thermochemical heat storage systems show great promise
in supporting the electrification of heating, thanks to their high thermal energy storage density and minimal
thermal losses. Among these systems, salt hydrate-based thermochemical systems are particularly appealing.
However, they do suffer from slow hydration kinetics in the presence of steam, which limits the achievable power
density. Additionally, their relatively high dehydration temperature hinders their application in supporting
heating systems. Furthermore, there are still challenges regarding the appropriate thermodynamic, physical,
kinetic, chemical, and economic requirements for implementing these systems in heating applications. This study
analyzes a proposal for thermochemical energy storage based on the direct hydration of sodium acetate with
liquid water. The proposed scheme satisfies numerous requirements for heating applications. By directly adding
liquid water to the salt, an unprecedented power density of 5.96 W/g is achieved, nearly two orders of magnitude
higher than previously reported for other salt-based systems that utilize steam. Albeit the reactivity drops as a
consequence of deliquescence and particle aggregation, it has been shown that this deactivation can be effectively mitigated by incorporating 10 % silica, achieving lower but stable energy and power density values.
Furthermore, unlike other salts studied previously, sodium acetate can be fully dehydrated at temperatures
within the ideal range for electrified heating systems such as heat pumps (40 ◦C – 60 ◦C). The performance of the
proposed scheme in terms of dehydration, hydration, and multicyclic behavior is determined through experimental analysis | es |
dc.description.sponsorship | MCIN/AEI/10.13039/501100011033 y European Union Next Generation EU/PRTR PDC2021- 121552-C21 y PID2022-140815OB-C22 | es |
dc.description.sponsorship | Ministerio de Ciencia e Innovación TED2021-131839B-C22 | es |
dc.format | application/pdf | es |
dc.format.extent | 8 | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Journal of Energy Storage, 86, 111310. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Salt hydrate | es |
dc.subject | Sodium acetate | es |
dc.subject | Hydration | es |
dc.subject | Heating | es |
dc.subject | Thermal energy storage | es |
dc.subject | Thermochemical storage | es |
dc.subject | Net-zero energy buildings | es |
dc.title | Sodium acetate-based thermochemical energy storage with low charging temperature and enhanced power density | es |
dc.type | info:eu-repo/semantics/article | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Química Inorgánica | es |
dc.relation.projectID | PDC2021- 121552-C21 | es |
dc.relation.projectID | PID2022-140815OB-C22 | es |
dc.relation.projectID | TED2021-131839B-C22 | es |
dc.relation.publisherversion | https://doi.org/10.1016/j.est.2024.111310 | es |
dc.identifier.doi | 10.1016/j.est.2024.111310 | es |
dc.journaltitle | Journal of Energy Storage | es |
dc.publication.volumen | 86 | es |
dc.publication.initialPage | 111310 | es |
dc.contributor.funder | Ministerio de Ciencia e Innovación (MICIN). España | es |
dc.contributor.funder | European Union (UE) | es |