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Advances in the development of dielectric elastomer generators for wave energy conversion

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  • Moretti, Giacomo
  • Santos Herran, Miguel
  • Forehand, David
  • Alves, Marco
  • Jeffrey, Henry
  • Vertechy, Rocco
  • Fontana, Marco

Abstract

This paper presents a summary of recent progress towards the development and upscaling of an emerging class of electrostatic power take-off (PTO) systems for wave energy converters (WECs), called dielectric elastomer generators (DEGs). DEGs are electromechanical devices able to convert mechanical energy into electrical energy by exploiting the deformation of rubber-like dielectric materials. The high power density (in the order of hundreds of Watts per kilogram), good efficiency and ease of assembling, combined with the low-cost of the employed materials (a few euros per kilogram) and their intrinsic resilient/reliable response to mechanical shocks make DEGs a very promising option for the deployment of a future generation of WECs.

Suggested Citation

  • Moretti, Giacomo & Santos Herran, Miguel & Forehand, David & Alves, Marco & Jeffrey, Henry & Vertechy, Rocco & Fontana, Marco, 2020. "Advances in the development of dielectric elastomer generators for wave energy conversion," Renewable and Sustainable Energy Reviews, Elsevier, vol. 117(C).
    • Handle: RePEc:eee:rensus:v:117:y:2020:i:c:s1364032119306380
    DOI: 10.1016/j.rser.2019.109430
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    References listed on IDEAS

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    1. Moretti, Giacomo & Malara, Giovanni & Scialò, Andrea & Daniele, Luca & Romolo, Alessandra & Vertechy, Rocco & Fontana, Marco & Arena, Felice, 2020. "Modelling and field testing of a breakwater-integrated U-OWC wave energy converter with dielectric elastomer generator," Renewable Energy, Elsevier, vol. 146(C), pages 628-642.
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    1. Portillo, J.C.C. & Collins, K.M. & Gomes, R.P.F. & Henriques, J.C.C. & Gato, L.M.C. & Howey, B.D. & Hann, M.R. & Greaves, D.M. & Falcão, A.F.O., 2020. "Wave energy converter physical model design and testing: The case of floating oscillating-water-columns," Applied Energy, Elsevier, vol. 278(C).
    2. Xiang Li & Qing Xiao, 2022. "A Numerical Study on an Oscillating Water Column Wave Energy Converter with Hyper-Elastic Material," Energies, MDPI, vol. 15(22), pages 1-25, November.
    3. Collins, Ieuan & Hossain, Mokarram & Dettmer, Wulf & Masters, Ian, 2021. "Flexible membrane structures for wave energy harvesting: A review of the developments, materials and computational modelling approaches," Renewable and Sustainable Energy Reviews, Elsevier, vol. 151(C).
    4. Kui Di & Kunwei Bao & Haojie Chen & Xinjun Xie & Jianbo Tan & Yixing Shao & Yongxiang Li & Wenjun Xia & Zisheng Xu & Shiju E, 2021. "Dielectric Elastomer Generator for Electromechanical Energy Conversion: A Mini Review," Sustainability, MDPI, vol. 13(17), pages 1-17, September.
    5. Wei, Yujia & Wang, Chao & Chen, Wenchuang & Huang, Luofeng, 2024. "Array analysis on a seawall type of deformable wave energy converters," Renewable Energy, Elsevier, vol. 225(C).
    6. Cotten, A. & Kurniawan, A. & Neary, V.S. & Coe, R.G. & Bacelli, G., 2024. "A compressible degree of freedom as a means for improving the performance of heaving wave energy converters," Renewable Energy, Elsevier, vol. 227(C).

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