A vibration‐based electromagnetic and piezoelectric hybrid energy harvester

Khan, Farid Ullah

doi:10.1002/er.5442

Cited by 15 publications

(7 citation statements)

References 50 publications

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“…These low acceleration and low frequency conditions of vibration are posing a challenge to energy harvesting. With vibration-based energy harvesters (Khan et al, 2010;Khan, 2020;Khan and Ahmad, 2016;Kuang et al, 2021), the bridge excitation energy is transformed into useful electrical energy to power the WSNs (Gao et al, 2020). The power take-off mechanism is developed (Van Den Bergh, 2023) for the bridge structure and then the transduction mechanism is added.…”

Section: Energy Harvesting For Bhm Systemsmentioning

confidence: 99%

Bridge vibration energy harvesting for wireless IoT-based structural health monitoring systems: A review

Ahmad

Khan

2023

Journal of Intelligent Material Systems and Structures

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Vibration energy has the advantage of abundant availability in the environment of the bridge structure due to consistent traffic flow and high-speed wind blowing. The vibration energy present at the bridge site can be harvested for powering the wireless sensors mounted on the bridge for health monitoring and making the system self-powered. The bridge vibrations are usually low frequency and low acceleration excitations, therefore, its transduction to useful electrical energy is a challenge. However, several techniques are being utilized to harvest the bridge vibration and a variety of bridge energy harvesters are being developed for this purpose. This work has reviewed energy harvesters claimed to be designed for bridge vibrations. The study is split into two categories, first section discusses the energy harvesters developed for bridge vibrations tested only in-lab environments. The second section is about the harvesters that have been characterized on real bridge structures to verify their effectiveness. The study reveals that the bridge energy harvesters can extract enough power to operate the wireless sensors for the health monitoring of bridge structures. Moreover, the architecture, fabrication, input excitation, and output performance of the reported harvesters with modeling techniques are discussed.

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Section: Energy Harvesting For Bhm Systemsmentioning

confidence: 99%

Bridge vibration energy harvesting for wireless IoT-based structural health monitoring systems: A review

Ahmad

Khan

2023

Journal of Intelligent Material Systems and Structures

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“…Because of its elasticity, the proof mass of wound coil is considered as a spring, whereas the flexible membrane has an area A, which is subjected to fluctuating pressure P ðtÞ inside the pipe causing a force F ðtÞ. According to Faraday's Law due to the motion between coil and magnet, a changing magnetic flux Φ induces emf at coil's terminals [28][29][30].…”

Section: Mathematical Modeling Of F-emehmentioning

confidence: 99%

A Pressure-Based Electromagnetic Energy Harvester for Pipeline Monitoring Applications

et al. 2022

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This work presents modeling, simulation, fabrication, and testing of a novel flow-based electromagnetic energy harvester (F-EMEH) for producing usable electrical energy from the pulsating fluid pressure levels within the pipeline. The power produced by the developed harvester can be effectively utilized for the operation of the wireless monitoring system of pipeline networks. The devised F-EMEH harvester consists of a stationary magnet positioned in the upper cap of the harvester and directly facing the wound coil that is fixed to a flexible latex membrane. The membrane along the coil when exposed to the pulsating fluid flow in the pipeline oscillates with respect to the stationary magnet. This relative motion of the membrane induced the voltage across the coil terminals. The harvester when applied to a pressure amplitude of 625 Pa generated an open circuit voltage of 1.2 V and a maximum load power of 18.6 μW when connected to 4.3 Ω load. Furthermore, when integrated to a voltage rectifier, an open circuit output of 4 V DC is achieved by the device at a pressure of 625 Pa. In addition, with the developed prototype, a 3.6 V, battery is charged up to 3.2 V within 30 min of duration. The voltage and power levels attained by the energy harvester can provide an easy solution for powering wireless sensor nodes mounted on a pipeline network for condition monitoring.

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“…These harvesters, normally, generate energy relatively from broader band of excitation frequency. Furthermore, nonlinear harvesting 41 techniques are also implemented in which some peak power is compromised for increasing the frequency bandwidth of the harvester. Apart from the problem of harvesting energy from narrow and broadband vibration environments, there is another scenario when the frequency of excitation is very low (less than 30 Hz).…”

Section: Introductionmentioning

confidence: 99%

Review of frequency up‐conversion vibration energy harvesters using impact and plucking mechanism

Ahmad

Khan

2021

Int J Energy Res

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One of the main challenges in the field of vibration energy harvesting is to extract energy from the low-frequency ambient vibrations. Since the voltage and power production in vibration energy harvesters depends on the relative velocity (frequency), therefore, comparatively high power levels are produced at a high frequency of vibrations. For low-frequency excitation of the base, technique such as frequency up-conversion (FUC) is widely utilised. In FUC method, a very low-frequency vibration is efficiently harvested using the plucking mechanism. FUC harvesters are comprised of a low-frequency mechanism (primary system) and a high-frequency mechanism (secondary system), which are either coupled operationally through freely moving mass, mechanical plucking, magnetic plucking or mechanical impact. The mechanical contact plucking or magnetic plucking mechanism is used for exciting a secondary system that has a much higher frequency for efficiently harvesting more energy. This work provides a detailed review of the FUC energy harvesters that are utilising freely moving mass, plucking mechanism and mechanical impact techniques reported in the literature. Information about the harvesters' architecture, working, fabrication and output performance is performed with an emphasis on input low frequency, input acceleration, converted high frequency, voltage generation, power levels and power density values reported in the literature. Moreover, all techniques developed for low-frequency vibration applications are compared and the effectiveness of each mechanism used for low-frequency energy harvesting is discussed.

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A vibration‐based electromagnetic and piezoelectric hybrid energy harvester

Cited by 15 publications

References 50 publications

Bridge vibration energy harvesting for wireless IoT-based structural health monitoring systems: A review

Bridge vibration energy harvesting for wireless IoT-based structural health monitoring systems: A review

A Pressure-Based Electromagnetic Energy Harvester for Pipeline Monitoring Applications

Review of frequency up‐conversion vibration energy harvesters using impact and plucking mechanism

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