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A hybrid galloping energy harvester for unmanned surface vehicles with a double-magnet mechanism

Author

Listed:
  • Tairab, Alaeldin M.
  • Zhuo, Junchao
  • Liu, Weiqun
  • Bisengimana, Emmanuel
  • Mugheri, Shoukat Ali
  • Aslam, Touqeer
  • Hao, Daning

Abstract

The rapid advancement of wireless Internet of Things sensors has facilitated the seamless integration of everyday objects with digital systems, transforming multiple sectors, including marine environments. Therefore, the growing need for sustainable energy sources in oceanic settings has prompted the development of the Hybrid Electromagnetic Solar Harvester system, designed to power low-power sensors mounted on unmanned surface vehicles. The electromagnetic solar harvester system incorporates a dual-magnet galloping mechanism for wind energy conversion and a solar module equipped with ferrofluid cooling to enhance photovoltaic efficiency. Experimental results indicated that the system produced output voltages from 1.6 V at 2.5 m/s to 7 V at 6.5 m/s, with corresponding electromagnetic power outputs from 1 mW to 18 mW. These results culminated in an electromagnetic efficiency of 34 %, a solar efficiency of 28 %, and a volume power density of 3020.5 mW/cm3. The integration of ferrofluid cooling enabled the solar module to reach efficiencies of up to 48 %. The system effectively powered a temperature sensor within 30 s of charging, demonstrating its applicability for real-time environmental monitoring. Additionally, a long short-term memory deep learning model was utilized to monitor voltage stability, attaining a data processing accuracy of 96 %.

Suggested Citation

  • Tairab, Alaeldin M. & Zhuo, Junchao & Liu, Weiqun & Bisengimana, Emmanuel & Mugheri, Shoukat Ali & Aslam, Touqeer & Hao, Daning, 2026. "A hybrid galloping energy harvester for unmanned surface vehicles with a double-magnet mechanism," Renewable Energy, Elsevier, vol. 257(C).
    • Handle: RePEc:eee:renene:v:257:y:2026:i:c:s0960148125024735
    DOI: 10.1016/j.renene.2025.124809
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    References listed on IDEAS

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