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Modeling of a Point Absorber for Energy Conversion in Italian Seas

Author

Listed:
  • Silvia Bozzi

    (Department of Electronics, Information Science and Bioengineering, Polytechnic Institute of Milan, Piazza Leonardo da Vinci 32, 20133 Milano, Italy)

  • Adrià Moreno Miquel

    (Department of Electronics, Information Science and Bioengineering, Polytechnic Institute of Milan, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
    CIRI-EC Fluid dynamics unit, University of Bologna, Via del Lazzaretto 15-5, 40131 Bologna, Italy)

  • Alessandro Antonini

    (Department of Civil, Environmental and Materials Engineering, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy)

  • Giuseppe Passoni

    (Department of Electronics, Information Science and Bioengineering, Polytechnic Institute of Milan, Piazza Leonardo da Vinci 32, 20133 Milano, Italy)

  • Renata Archetti

    (Department of Civil, Environmental and Materials Engineering, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy)

Abstract

In the present paper, we investigate the feasibility of wave electricity production in Italian seas by the deployment of the Seabased wave energy converter (WEC). A numerical model of the coupled buoy-generator system is presented, which simulates the behavior of the wave energy converter under regular waves of different wave heights and periods. The hydrodynamic forces, including excitation force, radiation impedance and hydrostatic force, are calculated by linear potential wave theory, and an analytical model is used for the linear generator. Two buoys of different radii are considered to explore the effect of buoy dimension on energy conversion and device efficiency. The power output is maximized by adding a submerged object to the floating buoy, in order to bring the system into resonance with the typical wave frequencies of the sites. The simulation results show a very good agreement with the published data on the Seabased WEC. The model is used to estimate energy production at eight Italian offshore locations. The results indicate that the degree of utilization of the device is higher than 20% at the two most energetic Italian sites (Alghero and Mazara del Vallo) and that it can be considerably increased if the floating body is connected to a submerged object, thanks to the resonant behavior of the WEC. In this case, the degree of utilization of the device would be higher than 40% at most of the study sites, with the highest value at Mazara del Vallo. The work enlarges the perspective, to be confirmed by experimental tests and more accurate numerical modeling, on clean electric power production from ocean waves in the Italian seas.

Suggested Citation

  • Silvia Bozzi & Adrià Moreno Miquel & Alessandro Antonini & Giuseppe Passoni & Renata Archetti, 2013. "Modeling of a Point Absorber for Energy Conversion in Italian Seas," Energies, MDPI, vol. 6(6), pages 1-19, June.
    • Handle: RePEc:gam:jeners:v:6:y:2013:i:6:p:3033-3051:d:26578
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    References listed on IDEAS

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    5. Amini, Erfan & Mehdipour, Hossein & Faraggiana, Emilio & Golbaz, Danial & Mozaffari, Sevda & Bracco, Giovanni & Neshat, Mehdi, 2022. "Optimization of hydraulic power take-off system settings for point absorber wave energy converter," Renewable Energy, Elsevier, vol. 194(C), pages 938-954.
    6. Xiaohui Zeng & Yang Yu & Liang Zhang & Qingquan Liu & Han Wu, 2014. "A New Energy-Absorbing Device for Motion Suppression in Deep-Sea Floating Platforms," Energies, MDPI, vol. 8(1), pages 1-22, December.
    7. Bozzi, Silvia & Giassi, Marianna & Moreno Miquel, Adrià & Antonini, Alessandro & Bizzozero, Federica & Gruosso, Giambattista & Archetti, Renata & Passoni, Giuseppe, 2017. "Wave energy farm design in real wave climates: the Italian offshore," Energy, Elsevier, vol. 122(C), pages 378-389.
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    9. Du, Xiaozhen & Li, Pengkai & Li, Zihao & Liu, Xiaotong & Wang, Wenxiu & Feng, Quanheng & Du, Lixiang & Yu, Hong & Wang, Jianjun & Xie, Xiangdong & Tang, Lihua, 2024. "Multi-pillar piezoelectric stack harvests ocean wave energy with oscillating float buoy," Energy, Elsevier, vol. 298(C).
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    12. Li, Demin & Dong, Xiaochen & Borthwick, Alistair G.L. & Sharma, Sanjay & Wang, Tianyuan & Huang, Heao & Shi, Hongda, 2024. "Two-buoy and single-buoy floating wave energy converters: A numerical comparison," Energy, Elsevier, vol. 296(C).
    13. Chen, Shao-En & Pan, Fu-Ting & Yang, Ray-Yeng & Wu, Chia-Che, 2023. "A multi-physics system integration and modeling method for piezoelectric wave energy harvester," Applied Energy, Elsevier, vol. 349(C).
    14. Bozzi, Silvia & Archetti, Renata & Passoni, Giuseppe, 2014. "Wave electricity production in Italian offshore: A preliminary investigation," Renewable Energy, Elsevier, vol. 62(C), pages 407-416.
    15. Al Shami, Elie & Wang, Xu & Zhang, Ran & Zuo, Lei, 2019. "A parameter study and optimization of two body wave energy converters," Renewable Energy, Elsevier, vol. 131(C), pages 1-13.
    16. 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.
    17. Wu, Jinming & Yao, Yingxue & Zhou, Liang & Göteman, Malin, 2018. "Real-time latching control strategies for the solo Duck wave energy converter in irregular waves," Applied Energy, Elsevier, vol. 222(C), pages 717-728.
    18. Shadmani, Alireza & Nikoo, Mohammad Reza & Gandomi, Amir H. & Chen, Mingjie & Nazari, Rouzbeh, 2024. "Advancements in optimizing wave energy converter geometry utilizing metaheuristic algorithms," Renewable and Sustainable Energy Reviews, Elsevier, vol. 197(C).
    19. Vincenzo Franzitta & Domenico Curto, 2017. "Sustainability of the Renewable Energy Extraction Close to the Mediterranean Islands," Energies, MDPI, vol. 10(3), pages 1-19, February.
    20. Piscopo, V. & Benassai, G. & Della Morte, R. & Scamardella, A., 2020. "Towards a unified formulation of time and frequency-domain models for point absorbers with single and double-body configuration," Renewable Energy, Elsevier, vol. 147(P1), pages 1525-1539.
    21. Elie Al Shami & Ran Zhang & Xu Wang, 2018. "Point Absorber Wave Energy Harvesters: A Review of Recent Developments," Energies, MDPI, vol. 12(1), pages 1-36, December.
    22. Mohd Nasir Ayob & Valeria Castellucci & Johan Abrahamsson & Rafael Waters, 2019. "A Remotely Controlled Sea Level Compensation System for Wave Energy Converters," Energies, MDPI, vol. 12(10), pages 1-16, May.

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