This article is cited in 2 scientific papers (total in 2 papers)
Thermophysical Properties of Materials
Heat-storage mixture of sodium halogenides and chromates
N. N. Verdieva, I. K. Garkushinb, Z. N. Verdievaa, A. V. Burchakovb, I. M. Kondratukb, E. M. Egorovab
aInstitute of Geothermal and Renewable Energy Problems, Branch of the Joint Institute for High Temperatures, Russian Academy of Sciences, Makhachkala, Russia bSamara State Technical University
Abstract:
A three-component system of sodium chlorides, bromides, and chromates was studied with differential thermal, differential scanning calorimetric methods of physicochemical analysis. The ratio of the components in the invariant composition, which crystallizes at $555^{\circ}$C with a specific enthalpy of melting of $92.9$ J/g, has been established. It was noted that the solid phase contains a polymorphic transformation $\rm Na_2\rm CrO_4$ at $423^{\circ}$C with a specific enthalpy of $42.6$ J/g. The developed composition can be used as a working fluid in devices that accumulate thermal energy in a temperature range of $300$ to $600^{\circ}$C. A three-dimensional model was constructed for the phase complex systems $\rm Na^+||\rm Cl^-$, $\rm Br^-$, $\rm CrO^{2-}_4$ and the identified mono- and invariant phase reactions. The spatial model of the system makes it possible to analyze the phase complex of the system and to construct arbitrarily selected isothermal and polythermal sections.
Citation:
N. N. Verdiev, I. K. Garkushin, Z. N. Verdieva, A. V. Burchakov, I. M. Kondratuk, E. M. Egorova, “Heat-storage mixture of sodium halogenides and chromates”, TVT, 59:1 (2021), 82–85; High Temperature, 59:1 (2021), 73–76
\Bibitem{Bur21}
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\paper Heat-storage mixture of sodium halogenides and chromates
\jour TVT
\yr 2021
\vol 59
\issue 1
\pages 82--85
\mathnet{http://mi.mathnet.ru/tvt11326}
\crossref{https://doi.org/10.31857/S0040364421010166}
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\transl
\jour High Temperature
\yr 2021
\vol 59
\issue 1
\pages 73--76
\crossref{https://doi.org/10.1134/S0018151X21010156}
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Linking options:
https://www.mathnet.ru/eng/tvt11326
https://www.mathnet.ru/eng/tvt/v59/i1/p82
This publication is cited in the following 2 articles: