Roeder, Timo und Risthaus, Kai und Monnerie, Nathalie und Sattler, Christian (2022) Non-Stoichiometric Redox Thermochemical Energy Storage Analysis for High Temperature Applications. Energies, 15 (5982). Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/en15165982. ISSN 1996-1073.
PDF
- Verlagsversion (veröffentlichte Fassung)
5MB |
Offizielle URL: https://www.mdpi.com/1996-1073/15/16/5982
Kurzfassung
Concentrated solar power is capable of providing high-temperature process streams to different applications. One promising application is the high-temperature electrolysis process demanding steam and air above 800 °C. To overcome the intermittence of solar energy, energy storage is required. Currently, thermal energy at such temperatures can be stored predominately as sensible heat in packed beds. However, such storage suffers from a loss of usable storage capacity after several cycles. To improve such storage, a one-dimensional packed bed thermal energy storage model using air as a heat transfer medium is set up and used to investigate and quantify the benefit of the incorporation of different thermochemical materials from the class of perovskites. Perovskites undergo a non-stoichiometric reaction extension which offers the utilization of thermochemical heat over a larger temperature range. Three different perovskites were considered: SrFeO3, CaMnO3 and Ca0.8Sr0.2MnO3. In total, 15 vol% of sensible energy storage has been replaced by one perovskite and different positions of the reactive material are analyzed. The effect of reactive heat on storage performance and thermal degradation over 15 consecutive charging and discharging cycles is studied. Based on the selected variation and reactive material, storage capacity and useful energy capacity are increased. The partial replacement close to the cold inlet/outlet of the storage system can increase the overall storage capacity by 10.42%. To fully utilize the advantages of thermochemical material, suitable operation conditions and a fitting placement of the material are vital.
elib-URL des Eintrags: | https://elib.dlr.de/192115/ | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
Titel: | Non-Stoichiometric Redox Thermochemical Energy Storage Analysis for High Temperature Applications | ||||||||||||||||||||
Autoren: |
| ||||||||||||||||||||
Datum: | 18 August 2022 | ||||||||||||||||||||
Erschienen in: | Energies | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||
Gold Open Access: | Ja | ||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||
Band: | 15 | ||||||||||||||||||||
DOI: | 10.3390/en15165982 | ||||||||||||||||||||
Verlag: | Multidisciplinary Digital Publishing Institute (MDPI) | ||||||||||||||||||||
ISSN: | 1996-1073 | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | thermal energy storage; thermochemical energy; packed bed; perovskites; solar energy | ||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||
HGF - Programm: | Materialien und Technologien für die Energiewende | ||||||||||||||||||||
HGF - Programmthema: | Chemische Energieträger | ||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||
DLR - Forschungsgebiet: | E SW - Solar- und Windenergie | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Solare Brennstoffe | ||||||||||||||||||||
Standort: | Jülich , Köln-Porz | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Future Fuels Institut für Future Fuels > Bewertung solarer Produktionsverfahren | ||||||||||||||||||||
Hinterlegt von: | Bülow, Mark | ||||||||||||||||||||
Hinterlegt am: | 14 Dez 2022 09:34 | ||||||||||||||||||||
Letzte Änderung: | 14 Dez 2022 09:34 |
Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags