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Piezoelectric Energy Harvester for Harnessing Rotational Kinetic Energy through Linear Energy Conversion

Author

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  • Habib Sadiq Abdulkhaliq

    (Centre for Energy Engineering, Cranfield University, Cranfield MK43 0AL, UK)

  • Fergus Crawley

    (Centre for Energy Engineering, Cranfield University, Cranfield MK43 0AL, UK)

  • Patrick Luk

    (Centre for Energy Engineering, Cranfield University, Cranfield MK43 0AL, UK)

  • Zhenhua Luo

    (Centre for Energy Engineering, Cranfield University, Cranfield MK43 0AL, UK)

Abstract

Real-time condition monitoring of various types of machinery using sensor technology has gained significant importance in recent years. However, relying on batteries to power these sensors proves to be sub-optimal, as it necessitates regular charging or replacement. To address this, harvesting waste energy from ambient sources emerges as a more efficient alternative. Everyday applications like vehicle wheels, fans, and turbines present ambient sources of waste rotational energy. In this study, we propose a novel rotational energy harvester design that converts rotational energy into linear energy. This linear energy impacts a piezoelectric disk, generating an electric potential. Through simulations, the expected electric potential at varying frequencies was evaluated. Subsequently, experimental tests were conducted by connecting the harvester to a rectifier for AC-to-DC signal conversion and an oscilloscope for voltage measurement. A DC motor replicated the rotational motion at the frequencies from the simulation, and the power output was measured. Using the power transfer theorem, simulation and experimental power outputs were calculated, resulting in values of 188, 513, and 1293 μW and 88.89, 336, and 923 μW, respectively. These results reveal that the designed harvester is competitive with those of existing rotational energy harvester designs, demonstrating the promising potential of this novel harvester.

Suggested Citation

  • Habib Sadiq Abdulkhaliq & Fergus Crawley & Patrick Luk & Zhenhua Luo, 2023. "Piezoelectric Energy Harvester for Harnessing Rotational Kinetic Energy through Linear Energy Conversion," Energies, MDPI, vol. 16(18), pages 1-17, September.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:18:p:6504-:d:1236350
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    References listed on IDEAS

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    1. Na, Yonghyeon & Lee, Min-Seon & Lee, Jung Woo & Jeong, Young Hun, 2020. "Wind energy harvesting from a magnetically coupled piezoelectric bimorph cantilever array based on a dynamic magneto-piezo-elastic structure," Applied Energy, Elsevier, vol. 264(C).
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    Cited by:

    1. Lukas Brandl & Hans-Christian Reuss & Daniel Heidle, 2024. "Approach to Design of Piezoelectric Energy Harvester for Sensors on Electric Machine Rotors," Energies, MDPI, vol. 17(8), pages 1-16, April.

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