Hybrid Magnetic-Piezoelectric Energy Harvester for Power Generation around Waistline During Gait

Beyaz, Mustafa İlker; Tat, Fatih; Özkaya, Kamil Yunus; Özbek, Ramazan

doi:10.1007/s42835-019-00309-4

Cited by 12 publications

(3 citation statements)

References 17 publications

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“…1 Considering the problem of environmental pollution and the fossil energy crisis, alternative renewable energy sources must be urgently developed. Mechanisms for producing renewable energy include solar cells, 2 thermoelectricity, 3,4 photovoltaics, 5 piezoelectricity, 5–9 and triboelectricity. 10,11 Among them, triboelectric nanogenerators (TENGs) 12 propose a good solution for low-power-consumption devices owing to their high power density, low cost and simple manufacturing process.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a high-performance chitosan-based triboelectric nanogenerator by regulating the surface microstructure and dielectric constant

et al. 2023

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Section: Introductionmentioning

confidence: 99%

Preparation of a high-performance chitosan-based triboelectric nanogenerator by regulating the surface microstructure and dielectric constant

et al. 2023

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“…In recent years, many researchers from both academic and industry have focused on utilizing wind [1][2][3][4], solar [5][6][7], tidal [8,9], and geothermal energies [10][11][12] to alleviate the serious energy crisis and environmental pollution. It is worth noting that harvesting the kinetic energy from human body to power portable electronic devices is a hot research topic in the last decade, such as converting the energy of the knee [13,14], waist [15,16], foot [17], wrist [18], and breathing [19] into electrical energy. Moreover, the traditional power supplements cannot meet the requirements of long life-span and high reliability [20].…”

Section: Introductionmentioning

confidence: 99%

Modeling and experimental investigation of asymmetric distance with magnetic coupling based on galloping piezoelectric energy harvester

Zhang¹,

Zhang²,

Wang³

et al. 2022

Smart Mater. Struct.

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This paper presents an asymmetric magnetic coupling piezoelectric energy harvester based on galloping to scavenge low-speed wind. The piezoelectric beam of energy harvester undergoes bending and torsional vibration simultaneously due to the eccentric distance. By analyzing the kinetic energy, potential energy, and virtual work of the energy harvesting system, the mathematical model of harvester is constructed and verified by experiments. The optimal external load resistance is confirmed at different eccentric distances and wind speeds by experiments. Compared with traditional galloping piezoelectric energy harvester, the asymmetric with magnetically coupling galloping piezoelectric energy harvester has a lower threshold wind speed, i.e. 2 m/s. And the asymmetric configuration contributes to a lower natural frequency and electromechanical coupling coefficient, which results in a lower power and voltage output. The potential energy of harvesting systems at different distances between two magnets are respectively numerical analyzed in detail. The theorical results illustrate that the energy harvester operates in monostable and bistable at different magnet distances. And the threshold wind speed of energy harvester increases when the energy harvester works at bistable. According to the above analysis, this work provides a detailed guideline for mathematical modeling and performance improvement of asymmetric piezoelectric energy harvester based on galloping.

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“…Energy harvesting is a process of generating electricity by scavenging energy from the ambient environment such as vibrations, water flow, and thermal and solar energy. − This renewable future technology that recycles the energy in day-to-day life is promising in terms of effective energy conservation and an environmentally sustainable society. The various mechanisms for the development of renewable energy include solar cells, thermoelectricity, photovoltaics, piezoelectricity, triboelectricity, and so on. − Among them, the triboelectric nanogenerator (TENG) which was invented in 2012 is the way of energy conversion that works on the coupling between triboelectrification and electrostatic induction . TENGs are attracting the attention of researchers worldwide owing to their numerous advantages in terms of high efficiency, high power density, low cost, simple fabrication process, and light weight which are suitable for next-generation power sources. − …”

Section: Introductionmentioning

confidence: 99%

Antibacterial and Soluble Paper-Based Skin-Attachable Human Motion Sensor Using Triboelectricity

Kim

Jayababu

et al. 2020

ACS Sustainable Chem. Eng.

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The environmental pollution issues caused by plastic-based polymers have become serious concerns over the past few decades. Accordingly, the need for using green and ecofriendly polymers in triboelectric nanogenerators (TENGs) is gradually increasing. In this research, the glycerol paper-based sodium lauroyl glutamate (SLG)-TENG with an antibacterial effect and also water and oil solubility has been successfully developed by a facile vacuum filtration method. Silver nanowire (AgNW) and carbon nanotube (CNT) layers were deposited by casting their respective dispersions in isopropyl alcohol (IPA) on SLG. During the fabrication process, concentrations of CNTs and AgNWs were varied from 0.35 to 0.5 wt % for CNTs, and from 0.05 to 0.3 wt % for AgNWs to determine the optimal concentration. From the electrical output measurements, it was observed that the CNT-based SLG-TENG showed a high open-circuit voltage (V oc) and short-circuit current (I sc) at 0.425 wt % while the AgNW-based SLG-TENG showed enhanced electrical properties at 0.15 wt %. A detailed explanation for the existence of the optimal point for CNTs and AgNW-based SLG-TENG is given by using the results of ultraviolet–visible spectroscopy and energy dispersive spectroscopy. Furthermore, the antibacterial effect has been strongly proven from the consequences of bacteria cultivation on SLG. Due to these peculiar properties of SLG-TENG, we have tested its applicability as a skin-attachable sensor, writing sensor, water leakage sensor, and humidity sensor and discussed its results with supporting videos. This work gives new insights into the simple design of biodegradable and antibacterial TENG-based wearable sensors in real life.

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Hybrid Magnetic-Piezoelectric Energy Harvester for Power Generation around Waistline During Gait

Cited by 12 publications

References 17 publications

Preparation of a high-performance chitosan-based triboelectric nanogenerator by regulating the surface microstructure and dielectric constant

Preparation of a high-performance chitosan-based triboelectric nanogenerator by regulating the surface microstructure and dielectric constant

Modeling and experimental investigation of asymmetric distance with magnetic coupling based on galloping piezoelectric energy harvester

Antibacterial and Soluble Paper-Based Skin-Attachable Human Motion Sensor Using Triboelectricity

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