IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v206y2023icp748-766.html
   My bibliography  Save this article

Sea trials of Sigma wave energy converter – Power and efficiency

Author

Listed:
  • Dragić, Mile
  • Hofman, Milan
  • Tomin, Veselin
  • Miškov, Vladimir

Abstract

Sigma Energy has performed its foremost prototype tests of a scaled wave energy converter (WEC) in a real sea environment. The prototype was a point absorber with a circular buoy, a mechanical power take-off (PTO) system and a counterweight, moored to the seabed as a tension leg platform with three equal tendons. In these extensive experiments, numerous device characteristics were measured and analysed. The paper presents these sea trials, focusing on the power and efficiency of the device. The power has been calculated from the data recorded at 6 locations along the PTO system. In that way, a decay of capture width ratio (CWR) from the one absorbed from the waves to the one delivered to the electrical network was found and analysed. Also, losses of the main elements of the PTO system were defined, calculated and ranked. Optimal sea and loading conditions were indicated, giving the maximal values of the efficiencies. These optimal conditions are physically explained, and the challenges in their prediction are discussed. In addition to the results of numerous 20-min tests, the paper presents the long-term average values of the efficiencies, covering all the tests performed, and accounting for the probabilities of different sea conditions.

Suggested Citation

  • Dragić, Mile & Hofman, Milan & Tomin, Veselin & Miškov, Vladimir, 2023. "Sea trials of Sigma wave energy converter – Power and efficiency," Renewable Energy, Elsevier, vol. 206(C), pages 748-766.
    • Handle: RePEc:eee:renene:v:206:y:2023:i:c:p:748-766
    DOI: 10.1016/j.renene.2023.02.055
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148123002008
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2023.02.055?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Yue Hong & Irina Temiz & Jianfei Pan & Mikael Eriksson & Cecilia Boström, 2021. "Damping Studies on PMLG-Based Wave Energy Converter under Oceanic Wave Climates," Energies, MDPI, vol. 14(4), pages 1-21, February.
    2. Babarit, A., 2015. "A database of capture width ratio of wave energy converters," Renewable Energy, Elsevier, vol. 80(C), pages 610-628.
    3. Babarit, A. & Hals, J. & Muliawan, M.J. & Kurniawan, A. & Moan, T. & Krokstad, J., 2012. "Numerical benchmarking study of a selection of wave energy converters," Renewable Energy, Elsevier, vol. 41(C), pages 44-63.
    4. Tunde Aderinto & Hua Li, 2019. "Review on Power Performance and Efficiency of Wave Energy Converters," Energies, MDPI, vol. 12(22), pages 1-24, November.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Adrian De Andres & Jéromine Maillet & Jørgen Hals Todalshaug & Patrik Möller & David Bould & Henry Jeffrey, 2016. "Techno-Economic Related Metrics for a Wave Energy Converters Feasibility Assessment," Sustainability, MDPI, vol. 8(11), pages 1-19, October.
    2. Adriano Silva Bastos & Tâmara Rita Costa de Souza & Dieimys Santos Ribeiro & Mirian de Lourdes Noronha Motta Melo & Carlos Barreira Martinez, 2023. "Wave Energy Generation in Brazil: A Georeferenced Oscillating Water Column Inventory," Energies, MDPI, vol. 16(8), pages 1-24, April.
    3. Manuel Corrales-Gonzalez & George Lavidas & Giovanni Besio, 2023. "Feasibility of Wave Energy Harvesting in the Ligurian Sea, Italy," Sustainability, MDPI, vol. 15(11), pages 1-22, June.
    4. Bertram, D.V. & Tarighaleslami, A.H. & Walmsley, M.R.W. & Atkins, M.J. & Glasgow, G.D.E., 2020. "A systematic approach for selecting suitable wave energy converters for potential wave energy farm sites," Renewable and Sustainable Energy Reviews, Elsevier, vol. 132(C).
    5. Wang, Yingguang & Wang, Lifu, 2018. "Towards realistically predicting the power outputs of wave energy converters: Nonlinear simulation," Energy, Elsevier, vol. 144(C), pages 120-128.
    6. Tunde Aderinto & Hua Li, 2019. "Review on Power Performance and Efficiency of Wave Energy Converters," Energies, MDPI, vol. 12(22), pages 1-24, November.
    7. Tatiana Potapenko & Joseph Burchell & Sandra Eriksson & Irina Temiz, 2021. "Wave Energy Converter’s Slack and Stiff Connection: Study of Absorbed Power in Irregular Waves," Energies, MDPI, vol. 14(23), pages 1-21, November.
    8. Babarit, Aurélien & Bull, Diana & Dykes, Katherine & Malins, Robert & Nielsen, Kim & Costello, Ronan & Roberts, Jesse & Bittencourt Ferreira, Claudio & Kennedy, Ben & Weber, Jochem, 2017. "Stakeholder requirements for commercially successful wave energy converter farms," Renewable Energy, Elsevier, vol. 113(C), pages 742-755.
    9. Portillo, J.C.C. & Reis, P.F. & Henriques, J.C.C. & Gato, L.M.C. & Falcão, A.F.O., 2019. "Backward bent-duct buoy or frontward bent-duct buoy? Review, assessment and optimisation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 112(C), pages 353-368.
    10. Mazzaretto, Ottavio Mattia & Lucero, Felipe & Besio, Giovanni & Cienfuegos, Rodrigo, 2020. "Perspectives for harnessing the energetic persistent high swells reaching the coast of Chile," Renewable Energy, Elsevier, vol. 159(C), pages 494-505.
    11. Roy, Sanjoy, 2023. "Short duration performance of floating heave buoy WEC in the Lakshadweep Sea," Renewable Energy, Elsevier, vol. 202(C), pages 1148-1159.
    12. Choupin, O. & Pinheiro Andutta, F. & Etemad-Shahidi, A. & Tomlinson, R., 2021. "A decision-making process for wave energy converter and location pairing," Renewable and Sustainable Energy Reviews, Elsevier, vol. 147(C).
    13. Dallman, Ann & Jenne, Dale S. & Neary, Vincent & Driscoll, Frederick & Thresher, Robert & Gunawan, Budi, 2018. "Evaluation of performance metrics for the Wave Energy Prize converters tested at 1/20th scale," Renewable and Sustainable Energy Reviews, Elsevier, vol. 98(C), pages 79-91.
    14. Zhigang Liu & Wei Huang & Shi Liu & Xiaomei Wu & Chun Sing Lai & Yi Yang, 2023. "An Improved Hydraulic Energy Storage Wave Power-Generation System Based on QPR Control," Energies, MDPI, vol. 16(2), pages 1-18, January.
    15. George Lavidas & Vengatesan Venugopal, 2018. "Energy Production Benefits by Wind and Wave Energies for the Autonomous System of Crete," Energies, MDPI, vol. 11(10), pages 1-14, October.
    16. Lavidas, George & Venugopal, Vengatesan, 2017. "A 35 year high-resolution wave atlas for nearshore energy production and economics at the Aegean Sea," Renewable Energy, Elsevier, vol. 103(C), pages 401-417.
    17. Garcia-Teruel, Anna & DuPont, Bryony & Forehand, David I.M., 2020. "Hull geometry optimisation of wave energy converters: On the choice of the optimisation algorithm and the geometry definition," Applied Energy, Elsevier, vol. 280(C).
    18. Choupin, O. & Têtu, A. & Del Río-Gamero, B. & Ferri, F. & Kofoed, JP., 2022. "Premises for an annual energy production and capacity factor improvement towards a few optimised wave energy converters configurations and resources pairs," Applied Energy, Elsevier, vol. 312(C).
    19. Ulazia, Alain & Penalba, Markel & Ibarra-Berastegui, Gabriel & Ringwood, John & Sáenz, Jon, 2019. "Reduction of the capture width of wave energy converters due to long-term seasonal wave energy trends," Renewable and Sustainable Energy Reviews, Elsevier, vol. 113(C), pages 1-1.
    20. Bechlenberg, Alva & Wei, Yanji & Jayawardhana, Bayu & Vakis, Antonis I., 2023. "Analysing the influence of power take-off adaptability on the power extraction of dense wave energy converter arrays," Renewable Energy, Elsevier, vol. 211(C), pages 1-12.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:206:y:2023:i:c:p:748-766. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.