DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Hyeonseong | ko |
dc.contributor.author | Zhou, Qitao | ko |
dc.contributor.author | Kim, Daegyoum | ko |
dc.contributor.author | Oh, Il-Kwon | ko |
dc.date.accessioned | 2019-12-23T00:20:07Z | - |
dc.date.available | 2019-12-23T00:20:07Z | - |
dc.date.created | 2019-12-20 | - |
dc.date.created | 2019-12-20 | - |
dc.date.created | 2019-12-20 | - |
dc.date.created | 2019-12-20 | - |
dc.date.created | 2019-12-20 | - |
dc.date.issued | 2020-02 | - |
dc.identifier.citation | NANO ENERGY, v.68, pp.104379 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.uri | http://hdl.handle.net/10203/270240 | - |
dc.description.abstract | Recently, flow-induced vibration and aeroelastic flutter have been considered to be an attractive energy source in renewable energy harvesting systems. However, irregular and random motions in the fluid-structure coupled dynamics greatly deteriorate the consistency and efficiency of the output power performance. Here, we report a novel mechanism of a periodic snap-through triboelectric energy harvester based on the bi-stable property of structural buckling and integrated dielectric-electrode layers made of PDMS-sealed Cu nanowire-Cu mesh. Under wind, a buckled elastic sheet experiences a periodic snap-through oscillation with a rapid transition between two opposite phases. In a regime with a large distance between two side walls, the critical free-stream velocity needed to initiate snapping increases as the wall distance becomes larger. By contrast, for a small wall-distance regime, the critical velocity decreases in an inverse manner with the wall distance. In a post-equilibrium state, three contact modes including rolling contact, head-on contact, and touch and sliding contact are identified, and their appearances strongly depend on the wall distance and free-stream velocity. The electrode layer with a small active area of 5 cm by 1 cm can deliver a maximum output power of 7.3 mW at the optimal wall distance with a free-stream velocity of 9.1 m/s. The proposed snap-through TENG system exhibits power generation performance superior to that of existing flutter-based systems, suggesting its potential applications in powering electric devices. | - |
dc.language | English | - |
dc.publisher | ELSEVIER | - |
dc.title | Flow-induced snap-through triboelectric nanogenerator | - |
dc.type | Article | - |
dc.identifier.wosid | 000513811800040 | - |
dc.identifier.scopusid | 2-s2.0-85076530990 | - |
dc.type.rims | ART | - |
dc.citation.volume | 68 | - |
dc.citation.beginningpage | 104379 | - |
dc.citation.publicationname | NANO ENERGY | - |
dc.identifier.doi | 10.1016/j.nanoen.2019.104379 | - |
dc.contributor.localauthor | Kim, Daegyoum | - |
dc.contributor.localauthor | Oh, Il-Kwon | - |
dc.contributor.nonIdAuthor | Zhou, Qitao | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Wind-driven snap-through | - |
dc.subject.keywordAuthor | Triboelectric nanogenerator | - |
dc.subject.keywordAuthor | Flow-induced vibration | - |
dc.subject.keywordPlus | WIND ENERGY | - |
dc.subject.keywordPlus | SYSTEM DRIVEN | - |
dc.subject.keywordPlus | SENSOR | - |
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