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A Liquid Metal Alternate MHD Disk Generator

Author

Listed:
  • Antoine Alemany

    (Centre National de la Recherché Scientifique (CNRS), Institute of Engineering Univ. Grenoble Alpes (Grenoble INP), Laboratoire de Science et Ingénierie des Matériaux et Procédés (SIMAP), University Grenoble Alpes (UGA), 1130, Rue de la Piscine, Domaine Universitaire, BP75, 38402 Saint-Martin, France)

  • Arturs Brekis

    (Institute of Physics, University of Latvia, Miera iela 32, LV-2169 Salaspils, Latvia
    Faculty of Electrical and Environmental Engineering, Riga Technical University, Azenes iela 12/1, LV-1048 Riga, Latvia)

  • Augusto Montisci

    (Electrical and Electronic, English Department, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy)

Abstract

In this paper, an electrical generator is presented for the exploitation of alternating energy. Some renewable sources are directly available in such forms, such as the wave power obtainable from the sea, but most of them can be converted to alternative forms; therefore, the proposed generator can be applied to different kinds of renewable sources. In particular, the proposed system is thought to be coupled with a thermoacoustic engine, which converts heat into mechanical vibration without using solid moving parts. This opens the proposed system to the use of most thermal sources, such as solar radiation, waste recovery, geothermic, car exhaust, and others. The object of of this present work concerns the transformation of alternating mechanical energy into electricity by using a specific type of magnetohydrodynamic (MHD) disk generator. The functioning of this generator is based on the interaction between a DC magnetic field embedded in a disk structure and a conducting fluid held in an inner channel. A simplified model of the generator is presented here, and a sensitivity analysis is performed. It is shown that, under specific operating conditions, the efficiency of the system can reach 70% with a level of power of hundreds of watts.

Suggested Citation

  • Antoine Alemany & Arturs Brekis & Augusto Montisci, 2023. "A Liquid Metal Alternate MHD Disk Generator," Sustainability, MDPI, vol. 15(16), pages 1-18, August.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:16:p:12619-:d:1221424
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    References listed on IDEAS

    as
    1. José Carlos Domínguez-Lozoya & Sergio Cuevas & David Roberto Domínguez & Raúl Ávalos-Zúñiga & Eduardo Ramos, 2021. "Laboratory Characterization of a Liquid Metal MHD Generator for Ocean Wave Energy Conversion," Sustainability, MDPI, vol. 13(9), pages 1-17, April.
    2. Jin, Siya & Greaves, Deborah, 2021. "Wave energy in the UK: Status review and future perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).
    3. Yang, Rui & Wang, Junxiang & Wu, Zhanghua & Huang, Bangdou & Luo, Ercang, 2023. "Performance analysis of thermoacoustic plasma MHD generation," Energy, Elsevier, vol. 263(PA).
    4. Zhu, Shunmin & Wang, Tong & Jiang, Chao & Wu, Zhanghua & Yu, Guoyao & Hu, Jianying & Markides, Christos N. & Luo, Ercang, 2023. "Experimental and numerical study of a liquid metal magnetohydrodynamic generator for thermoacoustic power generation," Applied Energy, Elsevier, vol. 348(C).
    Full references (including those not matched with items on IDEAS)

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