Assessment of Primary Energy Conversion of a Closed-Circuit OWC Wave Energy Converter
Tupperwave is a wave energy device based on the Oscillating-Water-Column (OWC) concept. Unlike a conventional OWC, which creates a bidirectional air flow across the self-rectifying turbine, the Tupperwave device uses rectifying valves to create a smooth unidirectional air flow, which is harnessed by...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/10/1962 |
| _version_ | 1798041133097418752 |
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| author | Pierre Benreguig Vikram Pakrashi Jimmy Murphy |
| author_facet | Pierre Benreguig Vikram Pakrashi Jimmy Murphy |
| author_sort | Pierre Benreguig |
| collection | DOAJ |
| description | Tupperwave is a wave energy device based on the Oscillating-Water-Column (OWC) concept. Unlike a conventional OWC, which creates a bidirectional air flow across the self-rectifying turbine, the Tupperwave device uses rectifying valves to create a smooth unidirectional air flow, which is harnessed by a unidirectional turbine. This paper deals with the development and validation of time-domain numerical models from wave to pneumatic power for the Tupperwave device and the conventional OWC device using the same floating spar buoy structure. The numerical models are built using coupled hydrodynamic and thermodynamic equations. The isentropic assumption is used to describe the thermodynamic processes. A tank testing campaign of the two devices at 1/24th scale is described, and the results are used to validate the numerical models. The capacity of the innovative Tupperwave OWC concept to convert wave energy into useful pneumatic energy to the turbine is assessed and compared to the corresponding conventional OWC. |
| first_indexed | 2024-04-11T22:17:12Z |
| format | Article |
| id | doaj.art-6606658ad56442d3a930ad36283349f5 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:17:12Z |
| publishDate | 2019-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-6606658ad56442d3a930ad36283349f52022-12-22T04:00:21ZengMDPI AGEnergies1996-10732019-05-011210196210.3390/en12101962en12101962Assessment of Primary Energy Conversion of a Closed-Circuit OWC Wave Energy ConverterPierre Benreguig0Vikram Pakrashi1Jimmy Murphy2MaREI Centre, Beaufort building, University College Cork, Haubowline Road, P43C573 Ringaskiddy, Co. Cork, Dublin 4, IrelandMaREI Centre, Beaufort building, University College Cork, Haubowline Road, P43C573 Ringaskiddy, Co. Cork, Dublin 4, IrelandMaREI Centre, Beaufort building, University College Cork, Haubowline Road, P43C573 Ringaskiddy, Co. Cork, Dublin 4, IrelandTupperwave is a wave energy device based on the Oscillating-Water-Column (OWC) concept. Unlike a conventional OWC, which creates a bidirectional air flow across the self-rectifying turbine, the Tupperwave device uses rectifying valves to create a smooth unidirectional air flow, which is harnessed by a unidirectional turbine. This paper deals with the development and validation of time-domain numerical models from wave to pneumatic power for the Tupperwave device and the conventional OWC device using the same floating spar buoy structure. The numerical models are built using coupled hydrodynamic and thermodynamic equations. The isentropic assumption is used to describe the thermodynamic processes. A tank testing campaign of the two devices at 1/24th scale is described, and the results are used to validate the numerical models. The capacity of the innovative Tupperwave OWC concept to convert wave energy into useful pneumatic energy to the turbine is assessed and compared to the corresponding conventional OWC.https://www.mdpi.com/1996-1073/12/10/1962wave energyoscillating water columntank testingvalvesair compressibility |
| spellingShingle | Pierre Benreguig Vikram Pakrashi Jimmy Murphy Assessment of Primary Energy Conversion of a Closed-Circuit OWC Wave Energy Converter Energies wave energy oscillating water column tank testing valves air compressibility |
| title | Assessment of Primary Energy Conversion of a Closed-Circuit OWC Wave Energy Converter |
| title_full | Assessment of Primary Energy Conversion of a Closed-Circuit OWC Wave Energy Converter |
| title_fullStr | Assessment of Primary Energy Conversion of a Closed-Circuit OWC Wave Energy Converter |
| title_full_unstemmed | Assessment of Primary Energy Conversion of a Closed-Circuit OWC Wave Energy Converter |
| title_short | Assessment of Primary Energy Conversion of a Closed-Circuit OWC Wave Energy Converter |
| title_sort | assessment of primary energy conversion of a closed circuit owc wave energy converter |
| topic | wave energy oscillating water column tank testing valves air compressibility |
| url | https://www.mdpi.com/1996-1073/12/10/1962 |
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