Effect of TiO<sub>2</sub> and ZnO Nanoparticles on the Performance of Dielectric Nanofluids Based on Vegetable Esters During Their Aging
Over the last few decades the insulating performance of transformer oils has been broadly studied under the point of view of nanotechnology, which tries to improve the insulating and heat dissipation performance of transformer oils by suspending nanoparticles. Many authors have analyzed the thermal...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-04-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/10/4/692 |
| _version_ | 1797571307364155392 |
|---|---|
| author | Inmaculada Fernández Rafael Valiente Félix Ortiz Carlos J. Renedo Alfredo Ortiz |
| author_facet | Inmaculada Fernández Rafael Valiente Félix Ortiz Carlos J. Renedo Alfredo Ortiz |
| author_sort | Inmaculada Fernández |
| collection | DOAJ |
| description | Over the last few decades the insulating performance of transformer oils has been broadly studied under the point of view of nanotechnology, which tries to improve the insulating and heat dissipation performance of transformer oils by suspending nanoparticles. Many authors have analyzed the thermal and dielectric behavior of vegetable oil based-nanofluids, however, very few works have studied the evolution of these liquids during thermal aging and their stability. In this paper has been evaluated the performance of aged vegetable oil based-nanofluids, which have been subjected to accelerated thermal aging at 150 °C. Nanoparticles of TiO<sub>2</sub> and ZnO have been dispersed in a commercial natural ester. Breakdown voltage, resistivity, dissipation factor and acidity of nanofluid samples have been measured according to standard methods, as well as stability. Moreover, it has been analyzed the degradation of Kraft paper through the degree of polymerization (DP). The results have showed that although nanoparticles improve breakdown voltage, they increase the ageing of insulation liquids and dielectric paper. |
| first_indexed | 2024-03-10T20:38:25Z |
| format | Article |
| id | doaj.art-0e1fa087b6064a7a904027244625906c |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T20:38:25Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-0e1fa087b6064a7a904027244625906c2023-11-19T20:50:18ZengMDPI AGNanomaterials2079-49912020-04-0110469210.3390/nano10040692Effect of TiO<sub>2</sub> and ZnO Nanoparticles on the Performance of Dielectric Nanofluids Based on Vegetable Esters During Their AgingInmaculada Fernández0Rafael Valiente1Félix Ortiz2Carlos J. Renedo3Alfredo Ortiz4Department of Electrical and Energy Engineering, Faculty of Industrial and Telecommunications Engineering, University of Cantabria, 39005 Santander, SpainDepartment of Applied Physics, Science Faculty, University of Cantabria, IDIVAL, 39005 Santander, SpainDepartment of Electrical and Energy Engineering, Faculty of Industrial and Telecommunications Engineering, University of Cantabria, 39005 Santander, SpainDepartment of Electrical and Energy Engineering, Faculty of Industrial and Telecommunications Engineering, University of Cantabria, 39005 Santander, SpainDepartment of Electrical and Energy Engineering, Faculty of Industrial and Telecommunications Engineering, University of Cantabria, 39005 Santander, SpainOver the last few decades the insulating performance of transformer oils has been broadly studied under the point of view of nanotechnology, which tries to improve the insulating and heat dissipation performance of transformer oils by suspending nanoparticles. Many authors have analyzed the thermal and dielectric behavior of vegetable oil based-nanofluids, however, very few works have studied the evolution of these liquids during thermal aging and their stability. In this paper has been evaluated the performance of aged vegetable oil based-nanofluids, which have been subjected to accelerated thermal aging at 150 °C. Nanoparticles of TiO<sub>2</sub> and ZnO have been dispersed in a commercial natural ester. Breakdown voltage, resistivity, dissipation factor and acidity of nanofluid samples have been measured according to standard methods, as well as stability. Moreover, it has been analyzed the degradation of Kraft paper through the degree of polymerization (DP). The results have showed that although nanoparticles improve breakdown voltage, they increase the ageing of insulation liquids and dielectric paper.https://www.mdpi.com/2079-4991/10/4/692natural esterTiOsub>2</sub>ZnOthermal agingnanofluidbreakdown voltage |
| spellingShingle | Inmaculada Fernández Rafael Valiente Félix Ortiz Carlos J. Renedo Alfredo Ortiz Effect of TiO<sub>2</sub> and ZnO Nanoparticles on the Performance of Dielectric Nanofluids Based on Vegetable Esters During Their Aging Nanomaterials natural ester TiOsub>2</sub> ZnO thermal aging nanofluid breakdown voltage |
| title | Effect of TiO<sub>2</sub> and ZnO Nanoparticles on the Performance of Dielectric Nanofluids Based on Vegetable Esters During Their Aging |
| title_full | Effect of TiO<sub>2</sub> and ZnO Nanoparticles on the Performance of Dielectric Nanofluids Based on Vegetable Esters During Their Aging |
| title_fullStr | Effect of TiO<sub>2</sub> and ZnO Nanoparticles on the Performance of Dielectric Nanofluids Based on Vegetable Esters During Their Aging |
| title_full_unstemmed | Effect of TiO<sub>2</sub> and ZnO Nanoparticles on the Performance of Dielectric Nanofluids Based on Vegetable Esters During Their Aging |
| title_short | Effect of TiO<sub>2</sub> and ZnO Nanoparticles on the Performance of Dielectric Nanofluids Based on Vegetable Esters During Their Aging |
| title_sort | effect of tio sub 2 sub and zno nanoparticles on the performance of dielectric nanofluids based on vegetable esters during their aging |
| topic | natural ester TiOsub>2</sub> ZnO thermal aging nanofluid breakdown voltage |
| url | https://www.mdpi.com/2079-4991/10/4/692 |
| work_keys_str_mv | AT inmaculadafernandez effectoftiosub2subandznonanoparticlesontheperformanceofdielectricnanofluidsbasedonvegetableestersduringtheiraging AT rafaelvaliente effectoftiosub2subandznonanoparticlesontheperformanceofdielectricnanofluidsbasedonvegetableestersduringtheiraging AT felixortiz effectoftiosub2subandznonanoparticlesontheperformanceofdielectricnanofluidsbasedonvegetableestersduringtheiraging AT carlosjrenedo effectoftiosub2subandznonanoparticlesontheperformanceofdielectricnanofluidsbasedonvegetableestersduringtheiraging AT alfredoortiz effectoftiosub2subandznonanoparticlesontheperformanceofdielectricnanofluidsbasedonvegetableestersduringtheiraging |