Performances Assessment of Tricalcium Aluminate as an Innovative Material for Thermal Energy Storage Applications
In this paper, tricalcium aluminate hexahydrate (Ca<sub>3</sub>Al<sub>2</sub>O<sub>6</sub>·6H<sub>2</sub>O), thanks to its appropriate features, was assessed as an innovative, low-cost and nontoxic material for thermochemical energy storage application...
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doaj-0b10201ee95c4ec3991ec58b867085532021-02-24T00:02:05ZengMDPI AGApplied Sciences2076-34172021-02-01111958195810.3390/app11041958Performances Assessment of Tricalcium Aluminate as an Innovative Material for Thermal Energy Storage ApplicationsFabrizio Alvaro0Elpida Piperopoulos1Luigi Calabrese2Emanuele La Mazza3Maurizio Lanza4Candida Milone5Department of Engineering, University of Messina, 98166 Messina, ItalyDepartment of Engineering, University of Messina, 98166 Messina, ItalyDepartment of Engineering, University of Messina, 98166 Messina, ItalyDepartment of Engineering, University of Messina, 98166 Messina, ItalyIstituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche (CNR), 98158 Messina, ItalyDepartment of Engineering, University of Messina, 98166 Messina, ItalyIn this paper, tricalcium aluminate hexahydrate (Ca<sub>3</sub>Al<sub>2</sub>O<sub>6</sub>·6H<sub>2</sub>O), thanks to its appropriate features, was assessed as an innovative, low-cost and nontoxic material for thermochemical energy storage applications. The high dehydration heat and the occurring temperature (200–300 °C) suggest that this material could be more effective than conventional thermochemical storage materials operating at medium temperature. For these reasons, in the present paper, Ca<sub>3</sub>Al<sub>2</sub>O<sub>6</sub>·6H<sub>2</sub>O hydration/dehydration performances, at varying synthesis procedures, were assessed. Experimentally, a co-precipitation and a solid–solid synthesis were studied in order to develop a preparation method that better provides a performing material for this specific application field. Thermal analysis (TGA, DSC) and structural characterization (XRD) were performed to evaluate the thermochemical behavior at medium temperature of the prepared materials. Furthermore, reversibility of the dehydration process and chemical stability of the obtained materials were investigated through cycling dehydration/hydration tests. The promising results, in terms of de/hydration performance and storage density (≈200 MJ/m<sup>3</sup>), confirm the potential effectiveness of this material for thermochemical energy storage applications and encourage further developments on this topic.https://www.mdpi.com/2076-3417/11/4/1958thermochemical storage materialstricalcium aluminate hexahydratehydrothermal stabilitythermal cycle testing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fabrizio Alvaro Elpida Piperopoulos Luigi Calabrese Emanuele La Mazza Maurizio Lanza Candida Milone |
spellingShingle |
Fabrizio Alvaro Elpida Piperopoulos Luigi Calabrese Emanuele La Mazza Maurizio Lanza Candida Milone Performances Assessment of Tricalcium Aluminate as an Innovative Material for Thermal Energy Storage Applications Applied Sciences thermochemical storage materials tricalcium aluminate hexahydrate hydrothermal stability thermal cycle testing |
author_facet |
Fabrizio Alvaro Elpida Piperopoulos Luigi Calabrese Emanuele La Mazza Maurizio Lanza Candida Milone |
author_sort |
Fabrizio Alvaro |
title |
Performances Assessment of Tricalcium Aluminate as an Innovative Material for Thermal Energy Storage Applications |
title_short |
Performances Assessment of Tricalcium Aluminate as an Innovative Material for Thermal Energy Storage Applications |
title_full |
Performances Assessment of Tricalcium Aluminate as an Innovative Material for Thermal Energy Storage Applications |
title_fullStr |
Performances Assessment of Tricalcium Aluminate as an Innovative Material for Thermal Energy Storage Applications |
title_full_unstemmed |
Performances Assessment of Tricalcium Aluminate as an Innovative Material for Thermal Energy Storage Applications |
title_sort |
performances assessment of tricalcium aluminate as an innovative material for thermal energy storage applications |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2021-02-01 |
description |
In this paper, tricalcium aluminate hexahydrate (Ca<sub>3</sub>Al<sub>2</sub>O<sub>6</sub>·6H<sub>2</sub>O), thanks to its appropriate features, was assessed as an innovative, low-cost and nontoxic material for thermochemical energy storage applications. The high dehydration heat and the occurring temperature (200–300 °C) suggest that this material could be more effective than conventional thermochemical storage materials operating at medium temperature. For these reasons, in the present paper, Ca<sub>3</sub>Al<sub>2</sub>O<sub>6</sub>·6H<sub>2</sub>O hydration/dehydration performances, at varying synthesis procedures, were assessed. Experimentally, a co-precipitation and a solid–solid synthesis were studied in order to develop a preparation method that better provides a performing material for this specific application field. Thermal analysis (TGA, DSC) and structural characterization (XRD) were performed to evaluate the thermochemical behavior at medium temperature of the prepared materials. Furthermore, reversibility of the dehydration process and chemical stability of the obtained materials were investigated through cycling dehydration/hydration tests. The promising results, in terms of de/hydration performance and storage density (≈200 MJ/m<sup>3</sup>), confirm the potential effectiveness of this material for thermochemical energy storage applications and encourage further developments on this topic. |
topic |
thermochemical storage materials tricalcium aluminate hexahydrate hydrothermal stability thermal cycle testing |
url |
https://www.mdpi.com/2076-3417/11/4/1958 |
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