Design and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester

Abstract The demand for energy harvesting technologies has been increasing over the years that can be attributed to its significance to low power applications. One of the key problems associated with the available vibration-based harvester is the maximum peak power can only be achieved when the devi...

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Autores principales:	Satish Rao Ganapathy, Hanim Salleh, Mohammad Khairul Azwan Azhar
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/88cf4be2a0de4b299b25414fa877022e
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spelling	oai:doaj.org-article:88cf4be2a0de4b299b25414fa877022e2021-12-02T11:37:19ZDesign and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester10.1038/s41598-021-83776-y2045-2322https://doaj.org/article/88cf4be2a0de4b299b25414fa877022e2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83776-yhttps://doaj.org/toc/2045-2322Abstract The demand for energy harvesting technologies has been increasing over the years that can be attributed to its significance to low power applications. One of the key problems associated with the available vibration-based harvester is the maximum peak power can only be achieved when the device frequency matches the source frequency to generate low usable power. Therefore, in this study, a magnetically-tunable hybrid piezoelectric-triboelectric energy harvester (MT-HPTEH) was designed and optimised. Four key design factors: mass placement, triboelectric surface area, extension length and magnetic stiffness were investigated and optimised. The voltage generation from piezoelectric and triboelectric mechanisms was determined individually to understand the effect of each design factor on the mechanisms. An output power of 659 µW at 180 kΩ at 44 Hz was obtained from the optimised MT-HPTEH with a theoretical–experimental discrepancy of less than 10%. The added magnetically-tunable feature enabled the harvester to work at the desired frequency range with an open circuit voltage between 7.800 and 20.314 V and a frequency range from 38 to 54 Hz. This MT-HPTEH can power at least six wireless sensor networks and can be used for low power applications such as RFID tags. Future work may include designing of energy-saving and sustainable harvester.Satish Rao GanapathyHanim SallehMohammad Khairul Azwan AzharNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Satish Rao Ganapathy Hanim Salleh Mohammad Khairul Azwan Azhar Design and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester
description	Abstract The demand for energy harvesting technologies has been increasing over the years that can be attributed to its significance to low power applications. One of the key problems associated with the available vibration-based harvester is the maximum peak power can only be achieved when the device frequency matches the source frequency to generate low usable power. Therefore, in this study, a magnetically-tunable hybrid piezoelectric-triboelectric energy harvester (MT-HPTEH) was designed and optimised. Four key design factors: mass placement, triboelectric surface area, extension length and magnetic stiffness were investigated and optimised. The voltage generation from piezoelectric and triboelectric mechanisms was determined individually to understand the effect of each design factor on the mechanisms. An output power of 659 µW at 180 kΩ at 44 Hz was obtained from the optimised MT-HPTEH with a theoretical–experimental discrepancy of less than 10%. The added magnetically-tunable feature enabled the harvester to work at the desired frequency range with an open circuit voltage between 7.800 and 20.314 V and a frequency range from 38 to 54 Hz. This MT-HPTEH can power at least six wireless sensor networks and can be used for low power applications such as RFID tags. Future work may include designing of energy-saving and sustainable harvester.
format	article
author	Satish Rao Ganapathy Hanim Salleh Mohammad Khairul Azwan Azhar
author_facet	Satish Rao Ganapathy Hanim Salleh Mohammad Khairul Azwan Azhar
author_sort	Satish Rao Ganapathy
title	Design and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester
title_short	Design and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester
title_full	Design and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester
title_fullStr	Design and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester
title_full_unstemmed	Design and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester
title_sort	design and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/88cf4be2a0de4b299b25414fa877022e
work_keys_str_mv	AT satishraoganapathy designandoptimisationofmagneticallytunablehybridpiezoelectrictriboelectricenergyharvester AT hanimsalleh designandoptimisationofmagneticallytunablehybridpiezoelectrictriboelectricenergyharvester AT mohammadkhairulazwanazhar designandoptimisationofmagneticallytunablehybridpiezoelectrictriboelectricenergyharvester
_version_	1718395772037234688

Design and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester

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