A hybrid piezoelectric-electromagnetic energy harvester from vortex-induced vibrations in fluid-flow; the influence of boundary condition in tuning the harvester

Muthalif, Asan G. A.; Hafizh, Muhammad; Renno, Jamil M.; Paurobally, M.R.

doi:10.1016/j.enconman.2022.115371

Cited by 31 publications

(7 citation statements)

References 51 publications

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“…Incorporating a PZT into the complex structure results in low spatial utilization efficiency and strict requirements on vibration frequency, as only close to maximum power output can be achieved at specific frequencies. A submerged piezoelectric-electromagnetic hybrid energy harvester that collects vortex-induced vibrations was proposed in [39], but the optimal external conditions for piezoelectric and electromagnetic components were different, and it could not simultaneously achieve maximum output power for these two methods. In contrast, in this device, the piezoelectric and electromagnetic components are coupled by a magnet, which enables them to simultaneously output maximum power.…”

Section: Discussionmentioning

confidence: 99%

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A hybrid wave vibration energy harvester with electromagnetic double-speed and piezoelectric up-frequency driven by a rotating ball

Jia,

Zeng,

Shi

et al. 2024

Smart Mater. Struct.

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The energy crisis and environmental pollution have driven the development of ambient energy harvesting technologies, and ocean waves usually contain abundant vibration energy, making the study of wave energy harvesting technology of profound value. This paper proposes a hybrid wave vibration energy harvester with electromagnetic double-speed and piezoelectric up-frequency driven by a rotating ball. For the electromagnetic generator (EMG), the excitation magnet and coil move simultaneously, resulting in double the flux variation rate compared with traditional structures, enhancing the output voltage. For the piezoelectric transducer (PZT), four piezoelectric cantilever beams are magnetically coupled with the EMG, generating power through bistable motion and broadening the working frequency band of the cantilever beam structure. The harvester is modeled and simulated, and its performance is tested on a simulated vibration platform, with simulation and experimental results in good agreement. Under external excitation at 0.8 Hz, the optimal load and maximum power for each EMG are 8.2 Ω and 207.2 mW, respectively, and the optimal load and maximum power for each PZT are 100 kΩ and 1.52 mW, respectively. The harvester can produce a maximum output power of 420.48 mW, demonstrating high efficiency in energy capture under low-frequency and multidirectional wave excitation.

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Section: Discussionmentioning

confidence: 99%

“…LiteratureZhou et al[37] Wu et al[38] Muthalif et al[39] Cao et al[40] −1 1-5 Hz 1-6 Hz Wind speed of 6.5 m s −1 0.4-0.8 Hz Power density (mW mm −3 ) 1.9 × 10 −5 Not available Not available 4.12 × 10 −6 1.402 × 10 −4…”

mentioning

confidence: 99%

A hybrid wave vibration energy harvester with electromagnetic double-speed and piezoelectric up-frequency driven by a rotating ball

Jia,

Zeng,

Shi

et al. 2024

Smart Mater. Struct.

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“…It is noteworthy that limitations, such as the low energy harvesting efficiency of the piezoelectric energy harvester, restrict its wide applications. Consequently, nonlinearity with different mechanisms was introduced to further improve the energy harvester performance [20][21][22]. The nonlinearity could broaden the valid frequency range and enhance the output of the energy harvester for a broader application, and garnered the interests of many scholars [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

A piezoelectric energy harvester with a hybrid nonlinearity of bluff body and magnet repulsion in low threshold wind speed for power supply

He,

Hou,

Liu

et al. 2023

Smart Mater. Struct.

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The environment contains several substantial energies, such as low-speed wind, which can be harvested to power sensors for environment monitoring, data collection, etc. As a promising solution, a piezoelectric energy harvester with hybrid nonlinearity for low threshold wind speed and practical wind speed range is introduced in this paper. Because of the hybrid nonlinearity of bluff body and magnet, the symmetrically shaped bluff body can induce a greater cantilever deformation, and a stronger repulsion generates a higher swing frequency of the cantilever. Moreover, the dual lead zirconate titanate plate enhances the utilization efficiency of the magnet repulsion. The hybrid nonlinearity is studied in theoretical models, numerical simulations, and experiments. The harvester outputs a noticeable voltage at 2.5 m s−1. The highest output peak-to-peak voltage and power came to 33.72 VP–P, 0.346 mW in 5.5 m s−1, 800 kΩ. The application experiments also demonstrate the feasibility and stability of the harvester by powering LEDs and sensors, which enable sensors to be placed in a wider range with high stability for environment monitoring.

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“…[23][24][25][26][27][28] Kim et al [29] proposed a novel piezoelectric energy harvester based on coupled transverse and interference galloping to improve the energetic performance of the galloping-based piezoelectric energy harvester system. A hybrid piezoelectric-electromagnetic energy harvester was investigated by Muthalif et al [30] where a bluff body was used as a harvester which has vibrational motions resulting from vortices that appear around this body. They performed an experimental study by gluing the piezoelectric patch onto a beam element to convert the mechanical strain into electricity.…”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting by V‐Shape Bluff Bodies with Various Apical Angles Attached to a Revolute Joint

Özkan,

Basaran,

Erkan

2023

Energy Tech

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This study parametrically investigates the efficiency of an integrated energy harvesting system that consists of a piezoelectric patch attached to a cantilever beam and V‐shape bluff bodies with various apical angles. V‐shape bluff bodies are connected to a cantilever beam with a revolute joint that represents a two degrees‐of‐freedom configuration. The mechanical energy of the galloping and fluttering motions, resulted from the vortex shedding appears downstream of the bluff bodies, is converted into electricity by means of a piezoelectric patch. The apical angle of the V‐shape geometries, varies between 0° and 180°, is the main parameter where the generated voltages and the related power curves are the major results for the evaluation of the efficiency of this harvesting system. Based on the experimental examinations, the maximum output power of 0.295 mW is produced at a wind speed of 10 m/s for the apical angle of 180° and the electrical resistance of 230 kΩ. Moreover, the proposed energy harvester system can still produce usable output power for the apical angles ranges from 0° to 20° and from 170° to 180°.This article is protected by copyright. All rights reserved.

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A hybrid piezoelectric-electromagnetic energy harvester from vortex-induced vibrations in fluid-flow; the influence of boundary condition in tuning the harvester

Cited by 31 publications

References 51 publications

A hybrid wave vibration energy harvester with electromagnetic double-speed and piezoelectric up-frequency driven by a rotating ball

A hybrid wave vibration energy harvester with electromagnetic double-speed and piezoelectric up-frequency driven by a rotating ball

A piezoelectric energy harvester with a hybrid nonlinearity of bluff body and magnet repulsion in low threshold wind speed for power supply

Energy Harvesting by V‐Shape Bluff Bodies with Various Apical Angles Attached to a Revolute Joint

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