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المؤلفHafizh, Muhammad
المؤلفMuthalif, Asan G.A.
المؤلفRenno, Jamil
المؤلفPaurobally, M.R.
المؤلفBahadur, Issam
المؤلفOuakad, Hassen
المؤلفSultan Mohamed Ali, Mohamed
تاريخ الإتاحة2024-05-14T03:51:40Z
تاريخ النشر2023
اسم المنشورEnergy Conversion and Management
المصدرScopus
المعرّفhttp://dx.doi.org/10.1016/j.enconman.2022.116559
الرقم المعياري الدولي للكتاب1968904
معرّف المصادر الموحدhttp://hdl.handle.net/10576/54922
الملخصPiezoelectric composites have become increasingly important in energy harvesting from vibration and, more recently, flow-induced vibration. The compatibility of piezoelectric devices has allowed tuning harvesters to the system's natural frequency to maximize the energy harvesting performance. However, the narrowband characteristic in piezoelectric composites is susceptible to efficiency losses when there are changes in the ambient surrounding. Thus, magnetic coupling introduces nonlinearity and can increase the broadband energy harvesting performance to account for slight variations. This paper proposes a piezoelectric energy harvester used in a pipe array to harvest oscillations from vortex-induced vibration. Adding a magnetic coupler introduces bandwidth enhancement characteristics that can accommodate slight changes in the freestream velocity. A computational simulation was used to compare different coupler shapes that can direct water flow toward the harvester array. The results show that an elliptical coupler works best and that a solid coupler has up to 50 % better performance than a hollow coupler. The experimental results showed that narrowband voltage output could reach up to 9 V in a pipe array. Furthermore, the broadband performance of magnetic coupling increased the bandwidth by up to 33 % in different orientations and distances.
راعي المشروعThis work was partially supported by Qatar University - International Research Collaboration Grant no. IRCC-2020-017, National Priorities Research Program Grant no. NPRP 11S - 1220 - 170112 and Student Grant no. QUST-1-CENG-2022-321. The findings achieved herein are solely the responsibility of the authors.
اللغةen
الناشرElsevier
الموضوعBroadband resonance
Magnetic coupling
Piezoelectric energy harvester
Shape optimization
Vortex-induced vibration
العنوانVortex induced vibration energy harvesting using magnetically coupled broadband circular-array piezoelectric patch: Modelling, parametric study, and experiments
النوعArticle
رقم المجلد276
dc.accessType Open Access


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