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Molenda, Margarethe and Stengler, Jana and Linder, Marc and Wörner, Antje (2013) Reversible Hydration Behavior of CaCl2 at High H2O Partial Pressures for Thermochemical Energy Storage. Thermochimica Acta (560), pp. 76-81. Elsevier. DOI: http://dx.doi.org/10.1016/j.tca.2013.03.020 ISSN 0040-6031
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Official URL: http://www.sciencedirect.com/science/article/pii/S0040603113001548
Abstract
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.
| Item URL in elib: | https://elib.dlr.de/85638/ | |||||||||||||||
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| Document Type: | Article | |||||||||||||||
| Title: | Reversible Hydration Behavior of CaCl2 at High H2O Partial Pressures for Thermochemical Energy Storage | |||||||||||||||
| Authors: |
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| Date: | 20 May 2013 | |||||||||||||||
| Journal or Publication Title: | Thermochimica Acta | |||||||||||||||
| Refereed publication: | Yes | |||||||||||||||
| Open Access: | No | |||||||||||||||
| Gold Open Access: | No | |||||||||||||||
| In SCOPUS: | Yes | |||||||||||||||
| In ISI Web of Science: | Yes | |||||||||||||||
| DOI : | http://dx.doi.org/10.1016/j.tca.2013.03.020 | |||||||||||||||
| Page Range: | pp. 76-81 | |||||||||||||||
| Publisher: | Elsevier | |||||||||||||||
| ISSN: | 0040-6031 | |||||||||||||||
| Status: | Published | |||||||||||||||
| Keywords: | Energy storage; Thermochemical; Chemical heat transformer; Hydration; Salt hydrate; Calcium chloride | |||||||||||||||
| HGF - Research field: | Energy | |||||||||||||||
| HGF - Program: | Efficient Energy Conversion and Use (old) | |||||||||||||||
| HGF - Program Themes: | Energy-efficient Processes (old) | |||||||||||||||
| DLR - Research area: | Energy | |||||||||||||||
| DLR - Program: | E EV - Energy process technology | |||||||||||||||
| DLR - Research theme (Project): | E - Thermochemische Prozesse (old) | |||||||||||||||
| Location: | Stuttgart | |||||||||||||||
| Institutes and Institutions: | Institute of Engineering Thermodynamics > Thermal Process Technology | |||||||||||||||
| Deposited By: | Molenda, Margarethe | |||||||||||||||
| Deposited On: | 02 Dec 2013 10:28 | |||||||||||||||
| Last Modified: | 02 Dec 2013 10:28 |
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