An underwater piezoelectric energy harvester based on magnetic coupling adaptable to low-speed water flow

Sui, Guangdong; Shan, Xiaobiao; Hou, Chengwei; Tian, Haigang; Hu, Jingtao; Xie, Tao

doi:10.1016/j.ymssp.2022.109729

Cited by 27 publications

(8 citation statements)

References 60 publications

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“…[80][81][82][83] In addition, the force applied to the harvester can also be tailored using magnets. Since 2020, a number of emerging studies have aimed to integrate magnetic materials into the oscillation structure to study a range of magnet parameters, including magnet polarity, [25,84,85] the number of magnets, [5] and magnet position. [25,85] In terms of optimizing the mechanical impedance of the harvester, the harvester impedance describes how much it resists the motion caused by the fluid force that is applied to the harvester.…”

Section: Oscillation Behaviorsmentioning

confidence: 99%

Energy Harvesting from Water Flow by Using Piezoelectric Materials

Li,

Roscow,

Khanbareh

et al. 2024

Adv Energy and Sustain Res

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As a promising energy‐harvesting technique, an increasing number of researchers seek to exploit the piezoelectric effect to power electronic devices by harvesting the energy associated with water flow. In this emerging field, a variety of research themes attract interest for investigation; these include selection of the excitation mechanism, oscillation structure, piezoelectric material, power management interface circuit, and application. Since there has been no comprehensive review to date with respect to the harvesting of water flow using piezoelectric materials, herein relevant work in the last 25 years is reviewed. To ensure that key aspects of the water‐flow energy harvester are overviewed, they are discussed in the context of energy‐flow theory, which includes the three stages of energy extraction, energy conversion, and energy transfer. The development of each energy‐flow process is reviewed in detail and combined with meta‐analysis of the published literature. Correlations between the harvesting processes and their contribution to the overall energy‐harvesting performance are illustrated, and directions for future research are also proposed. In this review, a comprehensive understanding of water‐flow piezoelectric energy harvesting is provided and it is aimed to guide future research and the development of piezoelectric harvesters for water‐flow‐powered devices is promoted.

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Section: Oscillation Behaviorsmentioning

confidence: 99%

Energy Harvesting from Water Flow by Using Piezoelectric Materials

Li,

Roscow,

Khanbareh

et al. 2024

Adv Energy and Sustain Res

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“…With increasing wind speed, the vibration of the bluff body follows three branches: in-well oscillation, chaotic oscillation, and inter-well oscillation. Sui et al [27] proposed a magnetically-coupled PEH based on flow-induced vibration (FIV) to achieve high-efficiency performance in low-speed water environments. The results showed that compared to non-magnetic PEHs, the magnetically-assisted PEH exhibited improvements of 18.42% in velocity bandwidth, 41.38% in maximum output voltage, and 5.79% overall.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of a galloping-based piezoelectric energy harvester with coupled magnetism

Wang,

Tang,

Tan

2024

Smart Mater. Struct.

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Wind-induced vibration energy harvesters have attracted increasing attention due to their unique dynamic characteristics and excellent energy harvesting performance. In this study, two types of magnetic energy harvesters, namely the magnetic attraction energy harvester (A-GEH) and the coupled magnetic attraction and repulsion energy harvester (A&R-GEH), were designed and their electromechanical coupling analysis models were established. The results showed that the magnetically coupled energy harvesters can adjust the operating wind speed range and increase the energy harvesting capability by varying the placement of the magnetic poles and the magnetic moment. Furthermore, the established analysis model accurately predicted the results of the wind tunnel experiments. The output power of the energy harvesters was evaluated by illuminating LED bulbs, demonstrating the potential for self-powering small wireless sensors. Under an experimental wind speed of 5.1 m s−1 and a vertical distance Δy = 12 mm between the magnets, the A-GEH and A&R-GEH showed an increase in output power of 356.854% and 365.488%, respectively, compared to a general energy harvester without magnetism. In conclusion, this study provides a framework for the analysis and design of magnetic-coupled wind-induced vibration energy harvesters.

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“…Nowadays, independent wireless sensor networks (WSNs) have become increasingly significant for environmental monitoring and structural health monitoring, like bridges, buildings, machines, pipelines, vehicles, forests, and oceans (Iqbal et al, 2022; Sui et al, 2023). Because of their wide application, unsustainable power supplies became a vital obstacle for the development of WSNs owing to costly replacement and environmental pollution of batteries (Jiang et al, 2020; Liao et al, 2022a; Zheng et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Development and performance evaluation of a wheel-type cantilevered piezoelectric rotational energy harvester via an unfixed exciting magnet

Kan

Zhang

Wang

et al. 2023

Journal of Intelligent Material Systems and Structures

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A wheel-type cantilevered piezoelectric rotational energy harvester (wheel-type PREH) via an unfixed exciting magnet was presented to harvest energy from rotational motion without or far away from a fixed support. To verify the structural feasibility and figure out the effect of rolling exciting magnet and excited magnet on the dynamic characteristics and power generation performance of the wheel-type PREH, the theoretical analysis, simulation, fabrication and experimental testing were performed. The results showed that the performance of the wheel-type PREH depended on the rotary speeds, proof mass and piezo-cantilever mass, number of exciting magnets, cylindrical sleeve materials and so on. When other parameters were constant, there were multiple optimal rotary speeds for the maximal amplitude-ratio, output voltage, electrical energy and output power to achieve peak. Besides, the total number of voltage crests per second did not change with rotary speed. There was a constant optimal resistance load for the wheel-type PREH at different rotary speeds to achieve maximal power. The PREH prototype could yield a maximum output power of 0.74 mW at 767 r/min with optimal load resistance of 215 kΩ and 40 different color LEDs in parallel and a low power light strip could be lighted by wheel-type PREH.

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An underwater piezoelectric energy harvester based on magnetic coupling adaptable to low-speed water flow

Cited by 27 publications

References 60 publications

Energy Harvesting from Water Flow by Using Piezoelectric Materials

Energy Harvesting from Water Flow by Using Piezoelectric Materials

Design and analysis of a galloping-based piezoelectric energy harvester with coupled magnetism

Development and performance evaluation of a wheel-type cantilevered piezoelectric rotational energy harvester via an unfixed exciting magnet

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