Molenda, Margarethe und Stengler, Jana und Linder, Marc Philipp und Wörner, Antje (2013) Reversible Hydration Behavior of CaCl2 at High H2O Partial Pressures for Thermochemical Energy Storage. Thermochimica Acta (560), Seiten 76-81. Elsevier. doi: 10.1016/j.tca.2013.03.020. ISSN 0040-6031.
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Offizielle URL: http://www.sciencedirect.com/science/article/pii/S0040603113001548
Kurzfassung
Compared to other energy storage concepts, thermochemical energy storage stands out with high storage densities and the possibility of heat transformation. However, up to now only few chemical reactions have been characterized sufficiently for this application. In this paper, calcium chloride is analyzed as a possible storage material. CaCl2 is known for its high deliquescence. Its exothermal hydration reaction can be used for storage applications from 80 °C to 200 °C. This paper reports on the hydration and dehydration behavior at different partial vapor pressures. Reversibility, intermediate reaction steps and their stability are studied. The presented results are in good agreement with literature data. The hydration reaction provides good reversibility and cycling stability for 20 cycles. Therefore, CaCl2 can be considered as a reference material for thermochemical storage application in the temperature range studied.
elib-URL des Eintrags: | https://elib.dlr.de/85638/ | ||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
Titel: | Reversible Hydration Behavior of CaCl2 at High H2O Partial Pressures for Thermochemical Energy Storage | ||||||||||||||||||||
Autoren: |
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Datum: | 20 Mai 2013 | ||||||||||||||||||||
Erschienen in: | Thermochimica Acta | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||
DOI: | 10.1016/j.tca.2013.03.020 | ||||||||||||||||||||
Seitenbereich: | Seiten 76-81 | ||||||||||||||||||||
Verlag: | Elsevier | ||||||||||||||||||||
ISSN: | 0040-6031 | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | Energy storage; Thermochemical; Chemical heat transformer; Hydration; Salt hydrate; Calcium chloride | ||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||
HGF - Programm: | Rationelle Energieumwandlung und Nutzung (alt) | ||||||||||||||||||||
HGF - Programmthema: | Energieeffiziente Prozesse (alt) | ||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||
DLR - Forschungsgebiet: | E EV - Energieverfahrenstechnik | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Thermochemische Prozesse (alt) | ||||||||||||||||||||
Standort: | Stuttgart | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Technische Thermodynamik > Thermische Prozesstechnik | ||||||||||||||||||||
Hinterlegt von: | Molenda, Margarethe | ||||||||||||||||||||
Hinterlegt am: | 02 Dez 2013 10:28 | ||||||||||||||||||||
Letzte Änderung: | 29 Nov 2023 13:39 |
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