Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/133888
Author(s): | Cátia Rodrigues Miguel Ramos R. Esteves J. Correia Daniel Clemente Francisco Gonçalves Nuno Mathias Mariany Gomes João Silva Cândido Duarte Tiago Morais Paulo Rosa Santos Francisco Taveira Pinto André M. Pereira João Ventura |
Title: | Integrated study of triboelectric nanogenerator for ocean wave energy harvesting: Performance assessment in realistic sea conditions |
Issue Date: | 2021-02-17 |
Abstract: | Ocean related activities are often supported by offshore equipment with particular power demands. These are usually deployed at remote locations and have limited space, thus small energy harvesting technologies, such as photovoltaic panels or wind turbines, are used to power their instruments. However, the inherent energy sources are intermittent and have lower density and predictability than an alternative source: wave energy. Here, we propose and critically assess triboelectric nanogenerators (TENGs) as a promising technology for integration into wave buoys. Three TENGs based on rolling-spheres were developed and their performance compared in both a "dry" bench testing system under rotating motions, and in a large-scale wave basin under realistic sea-states installed within a scaled navigation buoy. Both experiments show that the electrical outputs of these TENGs increase with decreasing wave periods and increasing wave amplitudes. However, the wave basin tests clearly demonstrated a significant dependency of the electrical outputs on the pitch degree of freedom and the need to take into account the full dynamics of the buoy, and not only that of TENGs, when subjected to the excitations of waves. This work opens new horizons and strategies to apply TENGs in marine applications, considering realistic hydrodynamic behaviors of floating bodies. |
Subject: | Ciências Tecnológicas, Ciências da engenharia e tecnologias Technological sciences, Engineering and technology |
Scientific areas: | Ciências da engenharia e tecnologias Engineering and technology |
URI: | https://hdl.handle.net/10216/133888 |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FCUP - Artigo em Revista Científica Internacional FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
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444992.pdf Restricted Access | 6.88 MB | Adobe PDF | Request a copy from the Author(s) |
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