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Titania Nanofluids Based on Natural Ester: Cooling and Insulation Properties Assessment
The assessment of a TiO(2) vegetal-based dielectric nanofluid has been carried out, and its characteristics and behavior have been tested and compared with a previously tested maghemite nanofluid. The results obtained reflect a similar affectation of the main properties, with a maximal improvement o...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221691/ https://www.ncbi.nlm.nih.gov/pubmed/32224919 http://dx.doi.org/10.3390/nano10040603 |
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author | Olmo, Cristian Méndez, Cristina Ortiz, Félix Delgado, Fernando Ortiz, Alfredo |
author_facet | Olmo, Cristian Méndez, Cristina Ortiz, Félix Delgado, Fernando Ortiz, Alfredo |
author_sort | Olmo, Cristian |
collection | PubMed |
description | The assessment of a TiO(2) vegetal-based dielectric nanofluid has been carried out, and its characteristics and behavior have been tested and compared with a previously tested maghemite nanofluid. The results obtained reflect a similar affectation of the main properties, with a maximal improvement of the breakdown voltage of 33% at 0.5 kg/m(3), keeping the thermal conductivity and the viscosity almost constant, especially the first one. This thermal characterization agrees with the results obtained when applying the TiO(2) optimal nanofluid in the cooling of an experimental setup, with a slightly worse performance than the base fluid. Nevertheless, this performance is the opposite to that noticed with the ferrofluid, which was capable of improving the cooling of the transformer and decreasing its temperature. The similarities between the characterizations of both nanofluids, the differences in their cooling performances and their different magnetic natures seem to point out the presence of additional thermomagnetic buoyancy forces to support the improvement of the cooling. |
format | Online Article Text |
id | pubmed-7221691 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-72216912020-05-21 Titania Nanofluids Based on Natural Ester: Cooling and Insulation Properties Assessment Olmo, Cristian Méndez, Cristina Ortiz, Félix Delgado, Fernando Ortiz, Alfredo Nanomaterials (Basel) Article The assessment of a TiO(2) vegetal-based dielectric nanofluid has been carried out, and its characteristics and behavior have been tested and compared with a previously tested maghemite nanofluid. The results obtained reflect a similar affectation of the main properties, with a maximal improvement of the breakdown voltage of 33% at 0.5 kg/m(3), keeping the thermal conductivity and the viscosity almost constant, especially the first one. This thermal characterization agrees with the results obtained when applying the TiO(2) optimal nanofluid in the cooling of an experimental setup, with a slightly worse performance than the base fluid. Nevertheless, this performance is the opposite to that noticed with the ferrofluid, which was capable of improving the cooling of the transformer and decreasing its temperature. The similarities between the characterizations of both nanofluids, the differences in their cooling performances and their different magnetic natures seem to point out the presence of additional thermomagnetic buoyancy forces to support the improvement of the cooling. MDPI 2020-03-26 /pmc/articles/PMC7221691/ /pubmed/32224919 http://dx.doi.org/10.3390/nano10040603 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Olmo, Cristian Méndez, Cristina Ortiz, Félix Delgado, Fernando Ortiz, Alfredo Titania Nanofluids Based on Natural Ester: Cooling and Insulation Properties Assessment |
title | Titania Nanofluids Based on Natural Ester: Cooling and Insulation Properties Assessment |
title_full | Titania Nanofluids Based on Natural Ester: Cooling and Insulation Properties Assessment |
title_fullStr | Titania Nanofluids Based on Natural Ester: Cooling and Insulation Properties Assessment |
title_full_unstemmed | Titania Nanofluids Based on Natural Ester: Cooling and Insulation Properties Assessment |
title_short | Titania Nanofluids Based on Natural Ester: Cooling and Insulation Properties Assessment |
title_sort | titania nanofluids based on natural ester: cooling and insulation properties assessment |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221691/ https://www.ncbi.nlm.nih.gov/pubmed/32224919 http://dx.doi.org/10.3390/nano10040603 |
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