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

Habib Sadiq Abdulkhaliq, Fergus Crawley, Patrick Luk and Zhenhua Luo ()
Additional contact information
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

Energies, 2023, vol. 16, issue 18, 1-17

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 ?W and 88.89, 336, and 923 ?W, 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.

Keywords: piezoelectric; rotational energy; sensors; energy harvester; sensors; PZT; lead zirconate titanate; piezo; disk; COMSOL (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/16/18/6504/pdf (application/pdf)
https://www.mdpi.com/1996-1073/16/18/6504/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:16:y:2023:i:18:p:6504-:d:1236350

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().