Modelling and development of a vibration-based electromagnetic energy harvester for industrial centrifugal pump application

Gilani, Syed Faizan-ul-Haq; Khir, Mohd Haris bin Mohd; Ibrahim, Rosdiazli; Kirmani, Emad ul Hassan; Gilani, Syed I.U.

doi:10.1016/j.mejo.2017.06.005

Cited by 8 publications

(7 citation statements)

References 11 publications

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“…Compared to the generators operating at extra low frequencies, another electromagnetic generator with the resonance at a fixed frequency of 200 Hz has been explored by Syed et al [203] and installed on an industrial centrifugal pump to successfully power wireless sensors for condition monitoring. In order to overcome the narrow resonance frequency bands of electromagnetic generators, Wei et al [204] designed a nonlinear vibration-based EH system model with a first order lever structure relying on an electromagnetic generator.…”

Section: Wireless Sensor Network Based Machine Condition Monitoringmentioning

confidence: 99%

Energy Harvesting Technologies for Achieving Self-Powered Wireless Sensor Networks in Machine Condition Monitoring: A Review

Tang

Wang

Cattley

et al. 2018

Sensors

186

106

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Condition monitoring can reduce machine breakdown losses, increase productivity and operation safety, and therefore deliver significant benefits to many industries. The emergence of wireless sensor networks (WSNs) with smart processing ability play an ever-growing role in online condition monitoring of machines. WSNs are cost-effective networking systems for machine condition monitoring. It avoids cable usage and eases system deployment in industry, which leads to significant savings. Powering the nodes is one of the major challenges for a true WSN system, especially when positioned at inaccessible or dangerous locations and in harsh environments. Promising energy harvesting technologies have attracted the attention of engineers because they convert microwatt or milliwatt level power from the environment to implement maintenance-free machine condition monitoring systems with WSNs. The motivation of this review is to investigate the energy sources, stimulate the application of energy harvesting based WSNs, and evaluate the improvement of energy harvesting systems for mechanical condition monitoring. This paper overviews the principles of a number of energy harvesting technologies applicable to industrial machines by investigating the power consumption of WSNs and the potential energy sources in mechanical systems. Many models or prototypes with different features are reviewed, especially in the mechanical field. Energy harvesting technologies are evaluated for further development according to the comparison of their advantages and disadvantages. Finally, a discussion of the challenges and potential future research of energy harvesting systems powering WSNs for machine condition monitoring is made.

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Section: Wireless Sensor Network Based Machine Condition Monitoringmentioning

confidence: 99%

Energy Harvesting Technologies for Achieving Self-Powered Wireless Sensor Networks in Machine Condition Monitoring: A Review

Tang

Wang

Cattley

et al. 2018

Sensors

186

106

View full text Add to dashboard Cite

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“…where ω 2 n = k eq /m eq represents the natural frequency of the mechanical oscillator, 1/ω e = C e R l is the time constant of the electrical circuit, η c = (m eq C e g e ) −1 denotes the electromechanical coupling coefficient, and ζ is the damping ratio. The governing differential equations of the energy harvester, Equations (20) and (21), are nonlinearly coupled via the relative deflection z and charge q.…”

Section: Single-degree-of-freedom (Sdof) Modelmentioning

confidence: 99%

“…However, large softening behavior would prevent the pull-in instability, increase the level of the harvested power, and broaden the bandwidth. These observations give a deeper insight into the behavior of such energy harvesters and are of great importance to the designers of electrostatic energy harvesters.Energies 2019, 12, 4249 2 of 26 new technologies, it becomes viable to harvest power from ambient and aeroelastic vibrations [2-6], thermal energy [7,8], airflow [9][10][11][12], and ocean waves [13].Common energy-harvesting techniques employ piezoelectric [14][15][16][17][18], electromagnetic [19][20][21][22][23], electrostatic [24][25][26][27], and hybrid [28] conversion principles according to the type of application [29]. Electrostatic mechanism has advantages over other mechanisms where it is possible to work at low frequency and wide bandwidth [30].…”

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confidence: 99%

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Nonlinear Analysis and Performance of Electret-Based Microcantilever Energy Harvesters

Hammad

Abdelmoula²,

Abdel‐Rahman

et al. 2019

Energies

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An energy harvester composed of a microcantilever beam with a tip mass and a fixed electrode covered with an electret layer is investigated when subject to an external harmonic base excitation. The tip mass and fixed electrode form a variable capacitor connected to a load resistance. A single-degree-of-freedom model, derived based on Newton’s and Kirshoff’s laws, shows that the tip mass displacement and charge in the variable capacitor are nonlinearly coupled. Analysis of the eigenvalue problem indicates the influence of the electret surface voltage and electrical load resistance on the harvester linear characteristics, namely the harvester coupled frequency and electromechanical damping. Then, the frequency–response curves are obtained numerically for a range of load resistance, electret voltage and base excitation amplitudes. A softening nonlinear effect is observed as a result of decreasing the load resistance and increasing the electret voltage. It is found that there is an optimal electret voltage with the highest harvested electrical power. Below this optimal value, the bandwidth is very small, whereas the bandwidth is large when the electret voltage is above this optimal value. In addition, it is noted that for a certain excitation frequency, the harvested power decreases or increases as a function of electrical load resistance when the coupled frequency is closer to short- or open-circuit frequency, respectively. However, when the coupled frequency is between the short-circuit and open-circuit frequencies, the harvested power has an optimal resistance with the highest power. Increasing the excitation amplitude to raise the harvested power could be accompanied with dynamic pull-in instability and/or softening behavior depending on the electrical load resistance and electret voltage. However, large softening behavior would prevent the pull-in instability, increase the level of the harvested power, and broaden the bandwidth. These observations give a deeper insight into the behavior of such energy harvesters and are of great importance to the designers of electrostatic energy harvesters.

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“…Centrifugal pumps are one of the most important equipment in all sectors. They are widely used in residential applications, for thermal and cooling plants and household electric devices, or in ORC based micro-cogeneration systems [1], in industrial sectors for applications which involve many different needs and the compliance with several fluids and specifics [2]: in few words, pumps are used to move fluids for a number of services. An important sector of application is the cooling sector of internal combustion engines for on-the-road transportation, where through a suitable design they are participating to the transition toward more sustainable mobility [3].…”

Section: Introductionmentioning

confidence: 99%

Design, optimization, and testing of a high-speed centrifugal pump for motorsport application

et al. 2021

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Centrifugal pumps are designed to have their BEP (Best Efficiency Point) for a given flow rate, hydraulic head, and speed. In the design phase, those parameters are combined into a dimensionless specific speed used to define geometry of the pump. In this paper, a downsized centrifugal pump has been designed to have high efficiency at very high speeds (10000 – 15000 RPM), as requested by the cooling circuit of an engine for motorsport and racing applications. The pump design point was 13 L/min and 3.0 bar at 12000 RPM, while the impeller external diameter is 34 mm. A mathematical model has been realized to optimize the pump in the early design phase through an iterative process, based on a 0D procedure which generates the optimal geometry of both impeller and volute. Hence, the model estimates main losses and, thus, hydraulic, volumetric, and organic efficiency. Once the geometry is generated, the performance of the pump has been verified on the design working point through a detailed CFD analysis. Physical phenomena that occur when the pump is running have been simulated, to represent as closely as possible vein fluid detachments, cavitation, and backflow at clearances between impeller and pump casing. At last, a prototype of the pump has been built and experimentally characterized in a dynamic test bench able to reproduce the characteristic curves (hydraulic head and efficiency) at very high revolution speeds as well as the performances in real time-varying operational conditions.

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Modelling and development of a vibration-based electromagnetic energy harvester for industrial centrifugal pump application

Cited by 8 publications

References 11 publications

Energy Harvesting Technologies for Achieving Self-Powered Wireless Sensor Networks in Machine Condition Monitoring: A Review

Energy Harvesting Technologies for Achieving Self-Powered Wireless Sensor Networks in Machine Condition Monitoring: A Review

Nonlinear Analysis and Performance of Electret-Based Microcantilever Energy Harvesters

Design, optimization, and testing of a high-speed centrifugal pump for motorsport application

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