Multimodal Hybrid Piezoelectric-Electromagnetic Insole Energy Harvester Using PVDF Generators
Harvesting biomechanical energy is a viable solution to sustainably powering wearable electronics for continuous health monitoring, remote sensing, and motion tracking. A hybrid insole energy harvester (HIEH), capable of harvesting energy from low-frequency walking step motion, to supply power to we...
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doaj-10ec70b0f1fa4495bdfafc0681f9b33c2020-11-25T03:10:55ZengMDPI AGElectronics2079-92922020-04-01963563510.3390/electronics9040635Multimodal Hybrid Piezoelectric-Electromagnetic Insole Energy Harvester Using PVDF GeneratorsMuhammad Iqbal0Malik Muhammad Nauman1Farid Ullah Khan2Pg Emeroylariffion Abas3Quentin Cheok4Asif Iqbal5Brahim Aissa6Faculty of Integrated Technologies, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei DarussalamFaculty of Integrated Technologies, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei DarussalamEnergy Harvesting Systems Research Lab, Institute of Mechatronics, University of Engineering and Technology, Peshawar 2500, PakistanFaculty of Integrated Technologies, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei DarussalamFaculty of Integrated Technologies, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei DarussalamFaculty of Integrated Technologies, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei DarussalamQatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Doha 34110, QatarHarvesting biomechanical energy is a viable solution to sustainably powering wearable electronics for continuous health monitoring, remote sensing, and motion tracking. A hybrid insole energy harvester (HIEH), capable of harvesting energy from low-frequency walking step motion, to supply power to wearable sensors, has been reported in this paper. The multimodal and multi-degrees-of-freedom low frequency walking energy harvester has a lightweight of 33.2 g and occupies a small volume of 44.1 cm<sup>3</sup>. Experimentally, the HIEH exhibits six resonant frequencies, corresponding to the resonances of the intermediate square spiral planar spring at 9.7, 41 Hz, 50 Hz, and 55 Hz, the Polyvinylidene fluoride (PVDF) beam-I at 16.5 Hz and PVDF beam-II at 25 Hz. The upper and lower electromagnetic (EM) generators are capable of delivering peak powers of 58 µW and 51 µW under 0.6 g, by EM induction at 9.7 Hz, across optimum load resistances of 13.5 Ω and 16.5 Ω, respectively. Moreover, PVDF-I and PVDF-II generate root mean square (RMS) voltages of 3.34 V and 3.83 V across 9 MΩ load resistance, under 0.6 g base acceleration. As compared to individual harvesting units, the hybrid harvester performed much better, generated about 7 V open-circuit voltage and charged a 100 µF capacitor up to 2.9 V using a hand movement for about eight minutes, which is 30% more voltage than the standalone piezoelectric unit in the same amount of time. The designed HIEH can be a potential mobile source to sustainably power wearable electronics and wireless body sensors.https://www.mdpi.com/2079-9292/9/4/635biomechanical energy harvestinghybridized generatorshoe insolehuman-powered wearable electronicswireless health monitoring |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Muhammad Iqbal Malik Muhammad Nauman Farid Ullah Khan Pg Emeroylariffion Abas Quentin Cheok Asif Iqbal Brahim Aissa |
spellingShingle |
Muhammad Iqbal Malik Muhammad Nauman Farid Ullah Khan Pg Emeroylariffion Abas Quentin Cheok Asif Iqbal Brahim Aissa Multimodal Hybrid Piezoelectric-Electromagnetic Insole Energy Harvester Using PVDF Generators Electronics biomechanical energy harvesting hybridized generator shoe insole human-powered wearable electronics wireless health monitoring |
author_facet |
Muhammad Iqbal Malik Muhammad Nauman Farid Ullah Khan Pg Emeroylariffion Abas Quentin Cheok Asif Iqbal Brahim Aissa |
author_sort |
Muhammad Iqbal |
title |
Multimodal Hybrid Piezoelectric-Electromagnetic Insole Energy Harvester Using PVDF Generators |
title_short |
Multimodal Hybrid Piezoelectric-Electromagnetic Insole Energy Harvester Using PVDF Generators |
title_full |
Multimodal Hybrid Piezoelectric-Electromagnetic Insole Energy Harvester Using PVDF Generators |
title_fullStr |
Multimodal Hybrid Piezoelectric-Electromagnetic Insole Energy Harvester Using PVDF Generators |
title_full_unstemmed |
Multimodal Hybrid Piezoelectric-Electromagnetic Insole Energy Harvester Using PVDF Generators |
title_sort |
multimodal hybrid piezoelectric-electromagnetic insole energy harvester using pvdf generators |
publisher |
MDPI AG |
series |
Electronics |
issn |
2079-9292 |
publishDate |
2020-04-01 |
description |
Harvesting biomechanical energy is a viable solution to sustainably powering wearable electronics for continuous health monitoring, remote sensing, and motion tracking. A hybrid insole energy harvester (HIEH), capable of harvesting energy from low-frequency walking step motion, to supply power to wearable sensors, has been reported in this paper. The multimodal and multi-degrees-of-freedom low frequency walking energy harvester has a lightweight of 33.2 g and occupies a small volume of 44.1 cm<sup>3</sup>. Experimentally, the HIEH exhibits six resonant frequencies, corresponding to the resonances of the intermediate square spiral planar spring at 9.7, 41 Hz, 50 Hz, and 55 Hz, the Polyvinylidene fluoride (PVDF) beam-I at 16.5 Hz and PVDF beam-II at 25 Hz. The upper and lower electromagnetic (EM) generators are capable of delivering peak powers of 58 µW and 51 µW under 0.6 g, by EM induction at 9.7 Hz, across optimum load resistances of 13.5 Ω and 16.5 Ω, respectively. Moreover, PVDF-I and PVDF-II generate root mean square (RMS) voltages of 3.34 V and 3.83 V across 9 MΩ load resistance, under 0.6 g base acceleration. As compared to individual harvesting units, the hybrid harvester performed much better, generated about 7 V open-circuit voltage and charged a 100 µF capacitor up to 2.9 V using a hand movement for about eight minutes, which is 30% more voltage than the standalone piezoelectric unit in the same amount of time. The designed HIEH can be a potential mobile source to sustainably power wearable electronics and wireless body sensors. |
topic |
biomechanical energy harvesting hybridized generator shoe insole human-powered wearable electronics wireless health monitoring |
url |
https://www.mdpi.com/2079-9292/9/4/635 |
work_keys_str_mv |
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