Experimental study of wind energy harvesting from flow-induced vibration of prisms using magnetostrictive material

Heragy, Mohamed; Kiwata, Takahiro; Hamano, Takahito; Shima, Takuma; Ueno, Takahiro; Kono, Toru; Ekmekci, Alis

doi:10.1016/j.jfluidstructs.2023.103910

Cited by 3 publications

(1 citation statement)

References 54 publications

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“…It is impossible not to mention new solutions in the area of energy storage [16][17][18] and thermomechanical properties, including phase change materials (PCMs) used for thermal energy storage and the modelling of novel composite materials formed by combining PCMs with other materials [19]. In this area, we can also point to innovative approaches using solar energy and heat pumps [20][21][22], ocean [23,24], and wind [25,26].…”

Section: Advancements In Energy and Materials Engineeringmentioning

confidence: 99%

Technological and Modelling Progress in Green Engineering and Sustainable Development: Advancements in Energy and Materials Engineering

Krzywanski,

Kijo-Kleczkowska,

Nowak

et al. 2023

Materials

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Due to a growing number of environmental issues, including global warming, water scarcity, and fossil fuel depletion, the topic of modern materials in energy is becoming crucial for our civilization. The technological advancements that have been observed bring many innovations that significantly impact how energy can be generated, stored, and distributed. Moreover, new opportunities have emerged in energy and materials engineering due to the increasing computational capability of current data processing systems. Methods that are highly demanding, time-consuming, and difficult to apply may now be considered when developing complete and sophisticated models in many areas of science and technology. Combining computational methods and AI algorithms allows for multi-threaded analyses solving advanced and interdisciplinary problems. Therefore, knowledge and experience in this subject, as well as the investigation of new, more efficient, and environmentally friendly solutions, currently represent one of the main directions of scientific research. The Special Issue “Advances in Materials: Modelling Challenges and Technological Progress for Green Engineering and Sustainable Development” aims to bring together research on material advances, focusing on modelling challenges and technological progress (mainly for green engineering and sustainable development). Original research studies, review articles, and short communications are welcome, especially those focusing on (but not limited to) artificial intelligence, other computational methods, and state-of-the-art technological concepts related to the listed keywords within energy and materials engineering.

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Section: Advancements In Energy and Materials Engineeringmentioning

confidence: 99%

Technological and Modelling Progress in Green Engineering and Sustainable Development: Advancements in Energy and Materials Engineering

Krzywanski,

Kijo-Kleczkowska,

Nowak

et al. 2023

Materials

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Effect of a splitter plate on the performance of magnetostrictive flow-induced vibrational power generator using a cantilevered circular cylinder

SHIMA,

KIWATA,

TAKEUCHI

et al. 2024

Transactions of the JSME (In Japanese)

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In order to improve a vibrational power generator using a magnetostrictive material, i.e., Iron-gallium alloy, and flow-induced vibration of a cantilevered cylinder, a fixed splitter plate was installed behind a cantilevered circular cylinder. Effects of a gap between a splitter plate and a circular cylinder on the performance of the response amplitude, the power of the flow-induced vibrational power generator and the vortex shedding frequency were investigated through wind tunnel experiments. Flow visualizations around a circular cylinder were also conducted by a smoke-wire method using a high-speed camera. The test models had a span length L of 200 mm, 300 mm and 400 mm. The diameter of a circular cylinder D of 40 mm. A splitter plate with a length of 400 mm and a thickness of 2 mm was installed behind the center of the model with a gap G varied from 8 to 104 mm. For a small gap ratio of G/D ≤ 0.6, galloping vibration occurred. From the smoke wire visualization, it was related that the upstream flow to the cylinder went along a side surface of the cylinder and the inner circulatory flow was generated near the gap. As a result, the accelerated gap-flow occurred and the negative pressure was generated periodically on the upper or lower side wall of the cylinder. For a large gap ratio of G/D ≥ 1.2, galloping vibration did not occur, and the response amplitude became similar to the circular cylinder without a splitter plate. The power generation of a circular cylinder having L = 200 mm with G/D = 0.2 was largest. However, the onset wind velocity of vibration was larger than that of the other cylinders and gaps.

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Simulation and Experiments on Optimization of Vortex-Induced Vibration Power Generation System Based on Side-by-Side Double Blunt Bodies

Fan,

Liu,

Song

et al. 2024

Energies

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In order to improve the utilization efficiency of converting low-flow current energy into electric energy for Reynolds number 10,000 ≤ Re ≤ 40,000, this paper proposes a vortex-induced vibration power generation system based on a side-by-side double blunt body. In this system, the side-by-side double blunt body structure is used in the current energy capture part to enhance the collection of low-flow current energy; the permanent magnet linear motor is used in the electric energy conversion part to improve the efficiency of electric energy conversion; and a laboratory device is constructed for testing. The effects of the blunt body structure parameters and the center spacing ratio on the energy harvesting performance of the system are qualitatively explained by constructing a simulation model. Compared with the single blunt body energy capture structure, the side-by-side double blunt body structure increases the vibration amplitude by 1.04 times and the lift by 1.14 times at the center spacing S/D = 2.4. Meanwhile, energy harvesting can be realized at a lower flow velocity, increasing the vortex-induced vibration’s energy capture range. Finally, the power generation system was experimentally verified in the laboratory, and the results showed that the vibration amplitude of the double blunt body structure was increased by 1.12 times compared to the single blunt body. The maximum output power of the generator is 10.55 W when the water velocity is 0.7 m/s. The energy conversion efficiency of the power generation system can reach a maximum of 52.93%, which is 12.33% higher than that of a single blunt body structure, which proves that the system has a higher power conversion efficiency than that of a conventional single conversion system.

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Experimental study of wind energy harvesting from flow-induced vibration of prisms using magnetostrictive material

Cited by 3 publications

References 54 publications

Technological and Modelling Progress in Green Engineering and Sustainable Development: Advancements in Energy and Materials Engineering

Technological and Modelling Progress in Green Engineering and Sustainable Development: Advancements in Energy and Materials Engineering

Effect of a splitter plate on the performance of magnetostrictive flow-induced vibrational power generator using a cantilevered circular cylinder

Simulation and Experiments on Optimization of Vortex-Induced Vibration Power Generation System Based on Side-by-Side Double Blunt Bodies

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