Green chemistry solutions for sol–gel micro-encapsulation of phase change materials for high-temperature thermal energy storage
NaNO3 has been selected as phase change material (PCM) due to its convenient melting and crystallization temperatures for thermal energy storage (TES) in solar plants or recovering of waste heat in industrial processes. However, incorporation of PCMs and NaNO3 in particular requires its protection (...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
|
| Series: | Manufacturing Review |
| Subjects: | |
| Online Access: | https://doi.org/10.1051/mfreview/2018003 |
| _version_ | 1819229017691127808 |
|---|---|
| author | Romero-Sanchez Maria Dolores Piticescu Radu-Robert Motoc Adrian Mihail Aran-Ais Francisca Tudor Albert Ioan |
| author_facet | Romero-Sanchez Maria Dolores Piticescu Radu-Robert Motoc Adrian Mihail Aran-Ais Francisca Tudor Albert Ioan |
| author_sort | Romero-Sanchez Maria Dolores |
| collection | DOAJ |
| description | NaNO3 has been selected as phase change material (PCM) due to its convenient melting and crystallization temperatures for thermal energy storage (TES) in solar plants or recovering of waste heat in industrial processes. However, incorporation of PCMs and NaNO3 in particular requires its protection (i.e. encapsulation) into containers or support materials to avoid incompatibility or chemical reaction with the media where incorporated (i.e. corrosion in metal storage tanks). As a novelty, in this study, microencapsulation of an inorganic salt has been carried out also using an inorganic compound (SiO2) instead of the conventional polymeric shells used for organic microencapsulations and not suitable for high temperature applications (i.e. 300–500 °C). Thus, NaNO3 has been microencapsulated by sol–gel technology using SiO2 as shell material. Feasibility of the microparticles synthetized has been demonstrated by different experimental techniques in terms of TES capacity and thermal stability as well as durability through thermal cycles. The effectiveness of microencapsulated NaNO3 as TES material depends on the core:shell ratio used for the synthesis and on the maximum temperature supported by NaNO3 during use. |
| first_indexed | 2024-12-23T11:06:29Z |
| format | Article |
| id | doaj.art-f1189e6e440a4ef59f38d943e96aae6d |
| institution | Directory Open Access Journal |
| issn | 2265-4224 |
| language | English |
| last_indexed | 2024-12-23T11:06:29Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Manufacturing Review |
| spelling | doaj.art-f1189e6e440a4ef59f38d943e96aae6d2022-12-21T17:49:29ZengEDP SciencesManufacturing Review2265-42242018-01-015810.1051/mfreview/2018003mfreview170020Green chemistry solutions for sol–gel micro-encapsulation of phase change materials for high-temperature thermal energy storageRomero-Sanchez Maria DoloresPiticescu Radu-RobertMotoc Adrian MihailAran-Ais FranciscaTudor Albert IoanNaNO3 has been selected as phase change material (PCM) due to its convenient melting and crystallization temperatures for thermal energy storage (TES) in solar plants or recovering of waste heat in industrial processes. However, incorporation of PCMs and NaNO3 in particular requires its protection (i.e. encapsulation) into containers or support materials to avoid incompatibility or chemical reaction with the media where incorporated (i.e. corrosion in metal storage tanks). As a novelty, in this study, microencapsulation of an inorganic salt has been carried out also using an inorganic compound (SiO2) instead of the conventional polymeric shells used for organic microencapsulations and not suitable for high temperature applications (i.e. 300–500 °C). Thus, NaNO3 has been microencapsulated by sol–gel technology using SiO2 as shell material. Feasibility of the microparticles synthetized has been demonstrated by different experimental techniques in terms of TES capacity and thermal stability as well as durability through thermal cycles. The effectiveness of microencapsulated NaNO3 as TES material depends on the core:shell ratio used for the synthesis and on the maximum temperature supported by NaNO3 during use.https://doi.org/10.1051/mfreview/2018003thermal energy storagemicroencapsulationsol–gelinorganic saltphase change materialNaNO3concentrated solar power |
| spellingShingle | Romero-Sanchez Maria Dolores Piticescu Radu-Robert Motoc Adrian Mihail Aran-Ais Francisca Tudor Albert Ioan Green chemistry solutions for sol–gel micro-encapsulation of phase change materials for high-temperature thermal energy storage Manufacturing Review thermal energy storage microencapsulation sol–gel inorganic salt phase change material NaNO3 concentrated solar power |
| title | Green chemistry solutions for sol–gel micro-encapsulation of phase change materials for high-temperature thermal energy storage |
| title_full | Green chemistry solutions for sol–gel micro-encapsulation of phase change materials for high-temperature thermal energy storage |
| title_fullStr | Green chemistry solutions for sol–gel micro-encapsulation of phase change materials for high-temperature thermal energy storage |
| title_full_unstemmed | Green chemistry solutions for sol–gel micro-encapsulation of phase change materials for high-temperature thermal energy storage |
| title_short | Green chemistry solutions for sol–gel micro-encapsulation of phase change materials for high-temperature thermal energy storage |
| title_sort | green chemistry solutions for sol gel micro encapsulation of phase change materials for high temperature thermal energy storage |
| topic | thermal energy storage microencapsulation sol–gel inorganic salt phase change material NaNO3 concentrated solar power |
| url | https://doi.org/10.1051/mfreview/2018003 |
| work_keys_str_mv | AT romerosanchezmariadolores greenchemistrysolutionsforsolgelmicroencapsulationofphasechangematerialsforhightemperaturethermalenergystorage AT piticescuradurobert greenchemistrysolutionsforsolgelmicroencapsulationofphasechangematerialsforhightemperaturethermalenergystorage AT motocadrianmihail greenchemistrysolutionsforsolgelmicroencapsulationofphasechangematerialsforhightemperaturethermalenergystorage AT aranaisfrancisca greenchemistrysolutionsforsolgelmicroencapsulationofphasechangematerialsforhightemperaturethermalenergystorage AT tudoralbertioan greenchemistrysolutionsforsolgelmicroencapsulationofphasechangematerialsforhightemperaturethermalenergystorage |