Calcium Hydroxide Doped by KNO3 as a Promising Candidate for Thermochemical Storage of Solar Heat Научная публикация
| Журнал |
RSC Advances
ISSN: 2046-2069 |
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| Вых. Данные | Год: 2017, Том: 7, Номер: 68, Страницы: 42929-42939 Страниц : 11 DOI: 10.1039/C7RA06639B | ||||
| Ключевые слова | THERMAL-ENERGY STORAGE; PUMP; DECOMPOSITION; MAGNESIUM; ENHANCEMENT; PERFORMANCE; EFFICIENT; KINETICS; SYSTEMS; NITRATE | ||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | Федеральное агентство научных организаций России | 0303-2016-0013 |
| 2 | Российский фонд фундаментальных исследований | 16-38-00503 |
Реферат:
New materials for thermochemical storage of concentrated solar heat are highly desirable for making this
emerging technology competitive with the traditional sensible and latent heat storage. Keeping this in mind,
we have prepared calcium hydroxide modified with potassium nitrate and studied its de-/rehydration
dynamics by differential scanning calorimetry and thermogravimetry techniques. The following notable
observations are described for the modified Ca(OH)2: (1) an acceleration of the dehydration and
reduction of its temperature as compared with the pure hydroxide; (2) the temperature reduction
depends on the KNO3 content Y and reaches 35 C at Y ¼ 5 wt%; (3) the addition of KNO3 only slightly
reduces the dehydration heat which remains promising for heat storage applications. Fast rehydration of
the doped CaO is observed at T ¼ 290–360 C and P(H2O) ¼ 23–128 mbar, and its rate strongly depends on both temperature and pressure. De- and rehydrated products were studied by the BET analysis and IR-spectroscopy to elucidate possible ways for the salt to influence the Ca(OH)2 dehydration. The mechanism involving a chemical interaction between the salt and the hydroxide is discussed. The new material exhibits a large heat storage density, fast de-/rehydration and adjustable decomposition temperature, and may be considered as a promising candidate for thermochemical storage of concentrated solar energy.
Библиографическая ссылка:
Shkatulov A.
, Aristov Y.
Calcium Hydroxide Doped by KNO3 as a Promising Candidate for Thermochemical Storage of Solar Heat
RSC Advances. 2017.
V.7. N68. P.42929-42939. DOI: 10.1039/C7RA06639B
WOS
Scopus
РИНЦ
CAPlusCA
OpenAlex
Calcium Hydroxide Doped by KNO3 as a Promising Candidate for Thermochemical Storage of Solar Heat
RSC Advances. 2017.
V.7. N68. P.42929-42939. DOI: 10.1039/C7RA06639B
WOS
Scopus
РИНЦ
CAPlusCA
OpenAlex
Файлы:
Полный текст от издателя
Даты:
| Поступила в редакцию: | 14 июн. 2017 г. |
| Принята к публикации: | 26 авг. 2017 г. |
| Опубликована online: | 5 сент. 2017 г. |
Идентификаторы БД:
| Web of science: | WOS:000409548200032 |
| Scopus: | 2-s2.0-85029096625 |
| РИНЦ: | 31085074 |
| Chemical Abstracts: | 2017:1457473 |
| Chemical Abstracts (print): | 170:67511 |
| OpenAlex: | W2750707504 |