Brendelberger, Stefan und Holzemer-Zerhusen, Philipp und Vega Puga, Estefania und Roeb, Martin und Sattler, Christian (2022) Study of a new receiver-reactor cavity system with multiple mobile redox units for solar thermochemical water splitting. Solar Energy, 235, Seiten 118-128. Elsevier. doi: 10.1016/j.solener.2022.02.013. ISSN 0038-092X.
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Offizielle URL: https://www.sciencedirect.com/science/article/abs/pii/S0038092X22001104
Kurzfassung
Solar thermochemical redox cycles could be a path to efficient, large-scale renewable hydrogen production. A new receiver-reactor concept is presented that combines characteristics of the most successful receiver-reactor systems to date, with features of concepts showing the highest efficiency potential. The key features of the system are movable reactive structures in combination with linear transportation systems and dedicated oxidation reactors. The application of several of these units allows the continuous operation of the receiver-reactor and permits the implementation of a solid–solid heat recovery system. Both of these characteristics are important to increase the system efficiency beyond the current state of technology. A numerical model is developed to simulate a basic cubic design version of the new concept and to analyse its performance. Parameter variations are studied amongst others for different cavity sizes, solar concentration factors and numbers of movable reactive structures. By avoiding the cyclic heating of the inert reactor vessel, the model predicts high efficiency values above 14% even for non-optimized designs. Furthermore, the basic concept of the heat recovery system is modelled with heat recovery rates of up to 20% in its most simple implementation. The new concept has the features required for highly performant systems and opens up a large parameter space for reactor design and operation optimization.
elib-URL des Eintrags: | https://elib.dlr.de/191698/ | ||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||
Titel: | Study of a new receiver-reactor cavity system with multiple mobile redox units for solar thermochemical water splitting | ||||||||||||||||||||||||
Autoren: |
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Datum: | 26 Februar 2022 | ||||||||||||||||||||||||
Erschienen in: | Solar Energy | ||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||
Band: | 235 | ||||||||||||||||||||||||
DOI: | 10.1016/j.solener.2022.02.013 | ||||||||||||||||||||||||
Seitenbereich: | Seiten 118-128 | ||||||||||||||||||||||||
Verlag: | Elsevier | ||||||||||||||||||||||||
ISSN: | 0038-092X | ||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||
Stichwörter: | Redox Cycle Water Splitting Receiver-Reactor Hydrogen Ceria Heat Recovery | ||||||||||||||||||||||||
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 > Solarchemische Verfahrensentwicklung | ||||||||||||||||||||||||
Hinterlegt von: | Bülow, Mark | ||||||||||||||||||||||||
Hinterlegt am: | 14 Dez 2022 09:02 | ||||||||||||||||||||||||
Letzte Änderung: | 14 Dez 2022 09:02 |
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