Analysis and design of an oscillating water column wave energy converter with dielectric elastomer power take-off
In this paper, we present a concept of near/off-shore Oscillating Water Column (OWC) Wave Energy Converter (WEC) that is equipped with a Power Take Off (PTO) unit based on Dielectric Elastomer Generators (DEGs). DEGs are soft/deformable generators with variable capacitance able to directly convert t...
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American Society of Mechanical Engineers (ASME)
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ftscssannapisair:oai:www.iris.sssup.it:11382/504545 2024-04-21T07:53:30+00:00 Analysis and design of an oscillating water column wave energy converter with dielectric elastomer power take-off Moretti, Giacomo Rosati, Gastone Pietro Papini Alves, Marco Grases, Manuel VERTECHY, ROCCO FONTANA, Marco Moretti, Giacomo Rosati, Gastone Pietro Papini Alves, Marco Grases, Manuel Vertechy, Rocco Fontana, Marco 2015 http://hdl.handle.net/11382/504545 https://doi.org/10.1115/OMAE2015-42103 http://www.asmedl.org/journals/doc/ASMEDL-home/proc/ eng eng American Society of Mechanical Engineers (ASME) country:USA place:New York info:eu-repo/semantics/altIdentifier/isbn/9780791856574 info:eu-repo/semantics/altIdentifier/wos/WOS:000379793600023 ispartofbook:Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2015 volume:9 issue:1 firstpage:V009T09A023 numberofpages:10 http://hdl.handle.net/11382/504545 doi:10.1115/OMAE2015-42103 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84947769865 http://www.asmedl.org/journals/doc/ASMEDL-home/proc/ info:eu-repo/semantics/openAccess Ocean Engineering Mechanical Engineering Energy Engineering and Power Technology info:eu-repo/semantics/conferenceObject 2015 ftscssannapisair https://doi.org/10.1115/OMAE2015-42103 2024-03-28T01:10:05Z In this paper, we present a concept of near/off-shore Oscillating Water Column (OWC) Wave Energy Converter (WEC) that is equipped with a Power Take Off (PTO) unit based on Dielectric Elastomer Generators (DEGs). DEGs are soft/deformable generators with variable capacitance able to directly convert the mechanical energy that is employed for their deformation into electrostatic energy. The proposed WEC is based on an existing tubular collector chamber of an OWC system designed by the company Sendekia, that is combined with an Inflatable Circular Diaphragm (ICD) DEG. This simplified design presents a very reduced number of moving parts showing potentially high efficiency, reliability and noise-free operation. A multi-physics dynamic model of the system is built using time domain linear hydrodynamics coupled with an analytical non-linear electro-hyperelastic model for the DEG-based PTO. The power matrix of the system is calculated for both regular and irregular waves. Some design issues are introduced showing that the electro-elastic response of the DEG provides the system with an additional stiffness that adds up to the hydrostatic stiffness and affects the resonance of the WEC. As a consequence, the geometric shape/dimensions of the OWC chamber and the layout of the DEG diaphragm should be chosen using an integrated procedure aimed at tuning the overall response of the WEC to the spectra a reference wave climate. Conference Object Arctic Scuola Universitaria Superiore Pisa Sant'Anna: CINECA IRIS Volume 9: Ocean Renewable Energy |
institution |
Open Polar |
collection |
Scuola Universitaria Superiore Pisa Sant'Anna: CINECA IRIS |
op_collection_id |
ftscssannapisair |
language |
English |
topic |
Ocean Engineering Mechanical Engineering Energy Engineering and Power Technology |
spellingShingle |
Ocean Engineering Mechanical Engineering Energy Engineering and Power Technology Moretti, Giacomo Rosati, Gastone Pietro Papini Alves, Marco Grases, Manuel VERTECHY, ROCCO FONTANA, Marco Analysis and design of an oscillating water column wave energy converter with dielectric elastomer power take-off |
topic_facet |
Ocean Engineering Mechanical Engineering Energy Engineering and Power Technology |
description |
In this paper, we present a concept of near/off-shore Oscillating Water Column (OWC) Wave Energy Converter (WEC) that is equipped with a Power Take Off (PTO) unit based on Dielectric Elastomer Generators (DEGs). DEGs are soft/deformable generators with variable capacitance able to directly convert the mechanical energy that is employed for their deformation into electrostatic energy. The proposed WEC is based on an existing tubular collector chamber of an OWC system designed by the company Sendekia, that is combined with an Inflatable Circular Diaphragm (ICD) DEG. This simplified design presents a very reduced number of moving parts showing potentially high efficiency, reliability and noise-free operation. A multi-physics dynamic model of the system is built using time domain linear hydrodynamics coupled with an analytical non-linear electro-hyperelastic model for the DEG-based PTO. The power matrix of the system is calculated for both regular and irregular waves. Some design issues are introduced showing that the electro-elastic response of the DEG provides the system with an additional stiffness that adds up to the hydrostatic stiffness and affects the resonance of the WEC. As a consequence, the geometric shape/dimensions of the OWC chamber and the layout of the DEG diaphragm should be chosen using an integrated procedure aimed at tuning the overall response of the WEC to the spectra a reference wave climate. |
author2 |
Moretti, Giacomo Rosati, Gastone Pietro Papini Alves, Marco Grases, Manuel Vertechy, Rocco Fontana, Marco |
format |
Conference Object |
author |
Moretti, Giacomo Rosati, Gastone Pietro Papini Alves, Marco Grases, Manuel VERTECHY, ROCCO FONTANA, Marco |
author_facet |
Moretti, Giacomo Rosati, Gastone Pietro Papini Alves, Marco Grases, Manuel VERTECHY, ROCCO FONTANA, Marco |
author_sort |
Moretti, Giacomo |
title |
Analysis and design of an oscillating water column wave energy converter with dielectric elastomer power take-off |
title_short |
Analysis and design of an oscillating water column wave energy converter with dielectric elastomer power take-off |
title_full |
Analysis and design of an oscillating water column wave energy converter with dielectric elastomer power take-off |
title_fullStr |
Analysis and design of an oscillating water column wave energy converter with dielectric elastomer power take-off |
title_full_unstemmed |
Analysis and design of an oscillating water column wave energy converter with dielectric elastomer power take-off |
title_sort |
analysis and design of an oscillating water column wave energy converter with dielectric elastomer power take-off |
publisher |
American Society of Mechanical Engineers (ASME) |
publishDate |
2015 |
url |
http://hdl.handle.net/11382/504545 https://doi.org/10.1115/OMAE2015-42103 http://www.asmedl.org/journals/doc/ASMEDL-home/proc/ |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
info:eu-repo/semantics/altIdentifier/isbn/9780791856574 info:eu-repo/semantics/altIdentifier/wos/WOS:000379793600023 ispartofbook:Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2015 volume:9 issue:1 firstpage:V009T09A023 numberofpages:10 http://hdl.handle.net/11382/504545 doi:10.1115/OMAE2015-42103 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84947769865 http://www.asmedl.org/journals/doc/ASMEDL-home/proc/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1115/OMAE2015-42103 |
container_title |
Volume 9: Ocean Renewable Energy |
_version_ |
1796936611819159552 |