Effect of h-BN and Fe3O4 nanoparticles on streamer propagation and dissipation in vegetable oil based nanofluids
Nanoparticles enhance the positive and negative lightning breakdown voltages of vegetable insulating oils due to a reduced streamer velocity. Pre-breakdown streamers in vegetable oil based h-BN and Fe3O4 nanofluids were observed using the shadowgraph method under a lightning impulse voltage. The pro...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2019-08-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5095826 |
| _version_ | 1818313790656086016 |
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| author | Wei Yao Wei Wang Peng Sun Muhammad Ali Mehmood Zhengyong Huang |
| author_facet | Wei Yao Wei Wang Peng Sun Muhammad Ali Mehmood Zhengyong Huang |
| author_sort | Wei Yao |
| collection | DOAJ |
| description | Nanoparticles enhance the positive and negative lightning breakdown voltages of vegetable insulating oils due to a reduced streamer velocity. Pre-breakdown streamers in vegetable oil based h-BN and Fe3O4 nanofluids were observed using the shadowgraph method under a lightning impulse voltage. The propagation of streamers until their stopping length is analyzed using shadowgraph images for the different nanofluids. The results suggest that these nanofluids present a higher breakdown voltage per unit length compared with pure oil. Secondary reverse streamers are observed to appear at the dissipation stage of the streamer. In particular, the secondary reverse streamer of the nanofluids appeared earlier and seemed to be shorter than that of pure oil under positive impulse voltages. The underlying mechanism was analyzed using space charge theory. |
| first_indexed | 2024-12-13T08:39:21Z |
| format | Article |
| id | doaj.art-1bb2fbe74c544ee69c3cce73ecdd9ae2 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-13T08:39:21Z |
| publishDate | 2019-08-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-1bb2fbe74c544ee69c3cce73ecdd9ae22022-12-21T23:53:34ZengAIP Publishing LLCAIP Advances2158-32262019-08-0198085306085306-710.1063/1.5095826028908ADVEffect of h-BN and Fe3O4 nanoparticles on streamer propagation and dissipation in vegetable oil based nanofluidsWei Yao0Wei Wang1Peng Sun2Muhammad Ali Mehmood3Zhengyong Huang4State Grid Henan Electric Power Research Institute, Zhengzhou, 450015, ChinaState Grid Henan Electric Power Research Institute, Zhengzhou, 450015, ChinaState Grid Henan Electric Power Research Institute, Zhengzhou, 450015, ChinaState Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing, 400044, ChinaState Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing, 400044, ChinaNanoparticles enhance the positive and negative lightning breakdown voltages of vegetable insulating oils due to a reduced streamer velocity. Pre-breakdown streamers in vegetable oil based h-BN and Fe3O4 nanofluids were observed using the shadowgraph method under a lightning impulse voltage. The propagation of streamers until their stopping length is analyzed using shadowgraph images for the different nanofluids. The results suggest that these nanofluids present a higher breakdown voltage per unit length compared with pure oil. Secondary reverse streamers are observed to appear at the dissipation stage of the streamer. In particular, the secondary reverse streamer of the nanofluids appeared earlier and seemed to be shorter than that of pure oil under positive impulse voltages. The underlying mechanism was analyzed using space charge theory.http://dx.doi.org/10.1063/1.5095826 |
| spellingShingle | Wei Yao Wei Wang Peng Sun Muhammad Ali Mehmood Zhengyong Huang Effect of h-BN and Fe3O4 nanoparticles on streamer propagation and dissipation in vegetable oil based nanofluids AIP Advances |
| title | Effect of h-BN and Fe3O4 nanoparticles on streamer propagation and dissipation in vegetable oil based nanofluids |
| title_full | Effect of h-BN and Fe3O4 nanoparticles on streamer propagation and dissipation in vegetable oil based nanofluids |
| title_fullStr | Effect of h-BN and Fe3O4 nanoparticles on streamer propagation and dissipation in vegetable oil based nanofluids |
| title_full_unstemmed | Effect of h-BN and Fe3O4 nanoparticles on streamer propagation and dissipation in vegetable oil based nanofluids |
| title_short | Effect of h-BN and Fe3O4 nanoparticles on streamer propagation and dissipation in vegetable oil based nanofluids |
| title_sort | effect of h bn and fe3o4 nanoparticles on streamer propagation and dissipation in vegetable oil based nanofluids |
| url | http://dx.doi.org/10.1063/1.5095826 |
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