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A geometrical optimization method applied to a heaving point absorber wave energy converter

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  • Shadman, Milad
  • Estefen, Segen F.
  • Rodriguez, Claudio A.
  • Nogueira, Izabel C.M.

Abstract

A methodology for the geometrical optimization of wave energy converters (WEC) based on statistical analysis methods and the hydrodynamics of the system in the frequency domain is presented. The optimization process has been applied on a one-body heaving point absorber for a nearshore region of the Rio de Janeiro coast. The sea characteristics have been described using a five-year wave hindcast and are based on a third generation wind wave model WAVEWATCH III. The optimization procedure is performed based on the resultant wave spectrum and joint probability distribution. The optimization process aims at maximizing both WEC absorbed power and absorption bandwidth when providing a natural period close to the predominant wave periods of the sea site. The optimized geometry of the WEC is determined by running a few simulations in the frequency domain and using the design of experiment (DOE) method. The software ANSYS-AQWA is used for the hydrodynamic diffraction analysis, and the DOE method is applied through the Minitab software to determine the optimized geometry. The two primary advantages of this optimization method are the reduced computational time and the possibility of performing parametric analyses for the WEC geometry.

Suggested Citation

  • Shadman, Milad & Estefen, Segen F. & Rodriguez, Claudio A. & Nogueira, Izabel C.M., 2018. "A geometrical optimization method applied to a heaving point absorber wave energy converter," Renewable Energy, Elsevier, vol. 115(C), pages 533-546.
    • Handle: RePEc:eee:renene:v:115:y:2018:i:c:p:533-546
    DOI: 10.1016/j.renene.2017.08.055
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    3. Garcia-Teruel, A. & Forehand, D.I.M., 2021. "A review of geometry optimisation of wave energy converters," Renewable and Sustainable Energy Reviews, Elsevier, vol. 139(C).
    4. Yadong Wen & Weijun Wang & Hua Liu & Longbo Mao & Hongju Mi & Wenqiang Wang & Guoping Zhang, 2018. "A Shape Optimization Method of a Specified Point Absorber Wave Energy Converter for the South China Sea," Energies, MDPI, vol. 11(10), pages 1-22, October.
    5. Tunde Aderinto & Hua Li, 2020. "Conceptual Design and Simulation of a Self-Adjustable Heaving Point Absorber Based Wave Energy Converter," Energies, MDPI, vol. 13(8), pages 1-15, April.
    6. Zhang, Yongkuang & Zhou, Yu & Chen, Weixing & Zhang, Weidong & Gao, Feng, 2022. "Design, modeling and numerical analysis of a WEC-Glider (WEG)," Renewable Energy, Elsevier, vol. 188(C), pages 911-921.
    7. Tiesheng Liu & Yanjun Liu & Shuting Huang & Gang Xue, 2022. "Shape Optimization of Oscillating Buoy Wave Energy Converter Based on the Mean Annual Power Prediction Model," Energies, MDPI, vol. 15(20), pages 1-19, October.
    8. Roy, Sanjoy, 2023. "Short duration performance of floating heave buoy WEC in the Lakshadweep Sea," Renewable Energy, Elsevier, vol. 202(C), pages 1148-1159.
    9. Wang, LiGuo & Lin, MaoFeng & Tedeschi, Elisabetta & Engström, Jens & Isberg, Jan, 2020. "Improving electric power generation of a standalone wave energy converter via optimal electric load control," Energy, Elsevier, vol. 211(C).
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    11. Milad Shadman & Corbiniano Silva & Daiane Faller & Zhijia Wu & Luiz Paulo de Freitas Assad & Luiz Landau & Carlos Levi & Segen F. Estefen, 2019. "Ocean Renewable Energy Potential, Technology, and Deployments: A Case Study of Brazil," Energies, MDPI, vol. 12(19), pages 1-37, September.
    12. 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.
    13. Guo, Bingyong & Ringwood, John V., 2021. "Geometric optimisation of wave energy conversion devices: A survey," Applied Energy, Elsevier, vol. 297(C).
    14. Tunde Aderinto & Hua Li, 2019. "Review on Power Performance and Efficiency of Wave Energy Converters," Energies, MDPI, vol. 12(22), pages 1-24, November.
    15. Philip Balitsky & Nicolas Quartier & Gael Verao Fernandez & Vasiliki Stratigaki & Peter Troch, 2018. "Analyzing the Near-Field Effects and the Power Production of an Array of Heaving Cylindrical WECs and OSWECs Using a Coupled Hydrodynamic-PTO Model," Energies, MDPI, vol. 11(12), pages 1-32, December.
    16. Cai, Qinlin & Zhu, Songye, 2021. "Applying double-mass pendulum oscillator with tunable ultra-low frequency in wave energy converters," Applied Energy, Elsevier, vol. 298(C).
    17. Derong, Duan & Fei, Chen & Hui, Zhang & Xuefeng, Yang & Fang, Zhao, 2020. "Study on capture power of the sealed-buoy wave energy converter in low energy flow density area," Renewable Energy, Elsevier, vol. 152(C), pages 1024-1034.
    18. Garcia-Teruel, Anna & DuPont, Bryony & Forehand, David I.M., 2021. "Hull geometry optimisation of wave energy converters: On the choice of the objective functions and the optimisation formulation," Applied Energy, Elsevier, vol. 298(C).
    19. Bonovas, Markos I. & Anagnostopoulos, Ioannis S., 2020. "Modelling of operation and optimum design of a wave power take-off system with energy storage," Renewable Energy, Elsevier, vol. 147(P1), pages 502-514.
    20. Wang, LiGuo & Ringwood, John V., 2021. "Control-informed ballast and geometric optimisation of a three-body hinge-barge wave energy converter using two-layer optimisation," Renewable Energy, Elsevier, vol. 171(C), pages 1159-1170.
    21. Zhang, Haicheng & Xi, Ru & Xu, Daolin & Wang, Kai & Shi, Qijia & Zhao, Huai & Wu, Bo, 2019. "Efficiency enhancement of a point wave energy converter with a magnetic bistable mechanism," Energy, Elsevier, vol. 181(C), pages 1152-1165.
    22. Tunde Aderinto & Hua Li, 2018. "Ocean Wave Energy Converters: Status and Challenges," Energies, MDPI, vol. 11(5), pages 1-26, May.
    23. Shadman, Milad & Guarniz Avalos, Gustavo Omar & Estefen, Segen F., 2021. "On the power performance of a wave energy converter with a direct mechanical drive power take-off system controlled by latching," Renewable Energy, Elsevier, vol. 169(C), pages 157-177.

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