Hydrocavitation piezoelectric ocean wave energy harvesting
The possibility to convert the ocean wave energy into electrical energy by piezoelectric layers has excited the imagination of ocean wave energy conversion designers for decades owing to its relative robustness (no mechanical parts are needed), the capability to cover large areas and its relative lo...
| Autores: | , |
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| Formato: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/353820 |
| Acesso em linha: | https://hdl.handle.net/2117/353820 https://dx.doi.org/10.1115/1.4052622 |
| Access Level: | acceso abierto |
| Palavra-chave: | Energy conversion Piezoelectricity Ocean wave power Renewable energy sources Alternative energy sources Energy conversion/systems Ocean wave energy conversion Hydocavitation Renewable energy Conversió d'energia Energia de les onades Piezoelectricitat Energies renovables Àrees temàtiques de la UPC::Energies::Energia mareomotriu |
| Resumo: | The possibility to convert the ocean wave energy into electrical energy by piezoelectric layers has excited the imagination of ocean wave energy conversion designers for decades owing to its relative robustness (no mechanical parts are needed), the capability to cover large areas and its relative low cost. Unfortunately, the very poor efficiency featured by piezoelectric layers in application of ocean waves has prevented its application even as energy harvester. Here, the possibility to induce hydrocavitation and then working with more higher local pressures for substantial efficiency enhancement is discussed. Utilizing a simplified geometrical and physical model and the linear and potential theory, a first theoretical estimation for the energy enhancement driven by hydrocavitation was calculated. It was found that the power could be enhanced several orders of magnitude which, although still rather low, however, the enhanced electric outputs can be used now as energy harvesters. Additional R&D is encouraged in order to explore the possibilities to harness hydrocavitation to enhance piezoelectric converters |
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