Design and analysis of the optimal spinning top-shaped buoy for wave energy harvesting in low energy density seas for sustainable marine aquaculture

Azam, Ali; Ahmed, Ammar; Li, Hai; Tairab, Alaeldin M.; Jia, Changyuan; Li, Ning; Zhang, Zutao

doi:10.1016/j.oceaneng.2022.111434

Cited by 22 publications

(7 citation statements)

References 55 publications

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“…Compared with the previous model, the model established in this article has several improvements 22,23 . Most of the previous models mainly considered the heave motion of the float, this model integrates both the heave and pitch motions of the float and the vibrator 24–27 . This allows for a more accurate representation of the motion dynamics in real‐world wave conditions.…”

Section: Resultsmentioning

confidence: 99%

“…22,23 Most of the previous models mainly considered the heave motion of the float, this model integrates both the heave and pitch motions of the float and the vibrator. [24][25][26][27] This allows for a more accurate representation of the motion dynamics in real-world wave conditions. In addition, the model includes linear radiation damping and nonlinear viscous damping forces, which are often neglected in other models.…”

Section: Model Promotion Evaluationmentioning

confidence: 99%

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Oscillating body wave energy conversion efficiency based on Simulink simulation training

Yin,

Lu,

et al. 2024

Energy Science & Engineering

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With the development of the economy and society, we are faced with the dual challenges of energy demands and environmental pollution. As one of the important marine renewable energies, wave energy is widely distributed and abundant, and has considerable applications in various fields. Oscillating body wave energy converter (WEC) is most popular among WECs; its energy conversion efficiency is thus one of the key issues for practical large‐scale applications. This article establishes a new model of the float and vibrator under different motion conditions, conducts simulation training, and then solves the displacement and velocity at different times, and finally optimizes the maximum output power and optimal damping coefficient. Simulink calculation is one of the most effective tools including neural networks, which allows us to achieve intelligent training and simulation. The obtained data imply that the maximum output power could be 8.102 W when the corresponding linear damping is 21,000 N s/m and the rotation damping is 95,000 N s/m. The article takes into account the pitching motion of the float, providing a more realistic model and obtaining optimal power absorbing efficiency. The obtained results could be the potential reference data in practically setting up the wave energy conversion systems.

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Section: Resultsmentioning

confidence: 99%

Section: Model Promotion Evaluationmentioning

confidence: 99%

Oscillating body wave energy conversion efficiency based on Simulink simulation training

Yin,

Lu,

et al. 2024

Energy Science & Engineering

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“…The wave power level ( P ) per unit width in a wave or wave energy flux (kWh/m) for irregular waves can be calculated based on the peak period ( T e ) and significant wave height. Here’s the breakdown [16-18]: The energy period ( T e ) is linked to the peak wave period ( T p ) through T e = α T p , with a coefficient ( α ) set to 1 for this study [18-20]. The scatter power diagram in Figure 5 visually represents the occurrence of wave power levels at different significant wave heights and peak periods.…”

Section: Design Parameters For Piezoelectric Energy Harvesting Systemsmentioning

confidence: 99%

Advancing Aquaculture Monitoring through Self-Powered Remote Systems: Piezoelectric Energy Harvesting Approach

Mehdipour,

Fachechi,

Rizzi

et al. 2024

Preprint

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This paper introduces the conceptualization and implementation of a sea wave piezoelectric energy harvesting system designed for a self-powered IoT buoy sensor, tailored for the remote monitoring of water quality variables in fish farming. The developed autonomous system undertakes periodic measurements of temperature, pH, and dissolved oxygen, with the gathered data transmitted locally through a low-power wide-area network protocol to a gateway. The gateway is intricately connected to a cloud service, facilitating efficient data storage and visualization. At the heart of this innovation lies a novel buoy design capable of harnessing energy from sea surface waves. The proposed piezoelectric energy harvesting system comprises two pivotal components: an energy transfer mechanism responsible for capturing incident sea surface wave energy and a piezoelectric fin serving as the transducer. Extensive data analysis of sea wave patterns spanning nearly 25 years informs the design process. Subsequently, a prototype is meticulously crafted, fabricated, and rigorously tested in a controlled environment, showcasing promising results. The outcome is a self-powered remote monitoring tool poised to revolutionize fish farming scenarios by enabling seamless, automatic data acquisition, and storage.

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“…Furthermore, Li et al 37 proposed a PTO integrated with a ball screw and a bevel gearbox, which had an energy conversion efficiency of 81.2% under dry test bench testing. Azam et al 38 designed various buoys with optimal geometric characteristics. They revealed that up to 90% of the wave energy could be transferred into the kinetic energy of the buoy under irregular waves.…”

Section: Introductionmentioning

confidence: 99%

A wave energy harvesting system for applications in deep-sea exploration

Kong

Zhang

et al. 2023

Sustainable Energy Fuels

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Design and analysis of the optimal spinning top-shaped buoy for wave energy harvesting in low energy density seas for sustainable marine aquaculture

Cited by 22 publications

References 55 publications

Oscillating body wave energy conversion efficiency based on Simulink simulation training

Oscillating body wave energy conversion efficiency based on Simulink simulation training

Advancing Aquaculture Monitoring through Self-Powered Remote Systems: Piezoelectric Energy Harvesting Approach

A wave energy harvesting system for applications in deep-sea exploration

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