Experimental and numerical studies on working parameter selections of a piezoelectric-painted-based ocean energy harvester attached to fish aggregating devices

Du, Xiaohui; Mutsuda, Hidemi; Tanaka, Yoshikazu; Nakashima, Takuji; Kanehira, Taiga; Taniguchi, Nobuyuki; Moriyama, Yasuo

doi:10.1016/j.esd.2022.09.012

Cited by 6 publications

(4 citation statements)

References 25 publications

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“…A sequential rotary-driven piezoelectric wave energy harvester (SRD-PWEH) with a cylindrical buoy is investigated by a sequential-drive rotating mechanism using one-way bearings and a piezoelectric harvesting component based on a circumferentially arranged array of piezoelectric composite cantilever beams [12]. Moreover, a Flexible PiezoElectric Device (FPED) is designed to provide a continuous and stable energy supply for Fish Aggregating Devices (FADs) and islands, utilizing FPEDs coated with piezoelectric paint [13]. Experimental, theoretical, and computational approaches are employed to assess FPED characteristics, wave interactions, and real-sea performance, demonstrating the effectiveness of the FPED under extreme conditions and validating the theoretical and computational models as alternative tools for FPED working parameter selections.…”

Section: Introductionmentioning

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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Section: Introductionmentioning

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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“…Rahmawati et al [14] proposed a new type of FAD with a current turbine to study the characteristics of the fluid force on FADs in wave-current conditions, and the results indicated that surge, sway, and heave motion can be reduced significantly. Du et al [15] evaluated the interactions between waves and a flexible piezoelectric device attached to the FAD by theoretical and computational analyses, conducted the test under real sea conditions, and revealed the effect of deformation, the strain rate, and output voltage of the device under waves. Overall, previous studies have used this structure as auxiliary equipment and not as the main object.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of the Hydrodynamic Response of Biodegradable Drifting Fish Aggregating Devices in Regular Waves

Zhang,

Liu,

Zhang

et al. 2024

Fishes

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Fish-aggregating devices play a significant role in tuna purse fisheries. The severe marine environment and the large number of non-biodegradable fish-aggregating devices impact structural safety and cause marine litter. Therefore, hydrodynamic performance and the use of biodegradable materials are crucial issues for ensuring the sustainability of fish-aggregating devices. In this study, a type of virtual biodegradable drifting fish-aggregating device (Bio-DFAD) was designed. Numerical simulations were conducted to investigate the motion responses and relative velocities of Bio-DFADs in regular waves (first- and fifth-order waves). The numerical model was applied based on unsteady Reynolds-averaged Navier–Stokes equations with the realizable k–ε model. For different scenarios of modeling, various conditions were modeled, including the relative length, wave steepness, and diameter of the balsa wood, to analyze their effects on the hydrodynamic response of the Bio-DFADs. The results indicated that the increased relative length, wave steepness, and diameter of balsa wood had a significant influence on the motion response amplitude operators (RAOs) and relative velocity of Bio-DFADs. The results suggested that a relative length (LF/B = 1.5) and smaller diameter (DF = 30 mm) were recommended for fewer motion responses and relative velocity. The obtained results provide insight for practical engineering applications of the hydrodynamic design of Bio-DFADs.

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“…The third method is to restrict some freedoms. Some researchers have adopted the strategy of fixing only one point to maximize rotational freedom [22,31,32] while some researchers have chosen to restrict the rotational freedom of the device and allow only heaving motion [33,34]. Further, other widely used approaches are based on swing design and limit freedom in the surge, sway, and heave directions.…”

Section: Introductionmentioning

confidence: 99%

Double-Swing Spring Origami Triboelectric Nanogenerators for Self-Powered Ocean Monitoring

Du,

Zhang,

Cao

et al. 2024

Energies

Self Cite

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Coastal areas often experience high population density and intense human activity owing to the considerable value of the ocean. Therefore, devices for monitoring marine disasters are crucial for ensuring the safety of human life. Herein, we develop hemispherical spring origami (SO) triboelectric nanogenerators (TENGs) (HSO-TENGs) for self-powered ocean wave monitoring. Optimization is performed using two approaches. First, swing machine experiments are conducted to investigate the monitoring performance of the HSO-TENGs regarding wave height and period with satisfactory accuracy. To increase power generation and monitoring accuracy, the internal inertia and centroid of gravity of the HSO-TENGs are optimized with respect to the structural parameters (i.e., magnet weight, hammer height, and external swing arm length). Second, numerical simulations are performed using the smoothed-particle hydrodynamics (SPH) method to determine the most suitable fixed condition for the HSO-TENGs for sensing wave changes. Subsequently, wave tank experiments are conducted on the HSO-TENGs to determine their ability to sense wave height, period, frequency, and direction. Tests related to supplying other sensors are also conducted. Eventually, the ability of the HSO-TENGs to monitor wave direction and spreading parameters is investigated in a numerical SPH circular wave tank. The results prove that the optimized HSO-TENGs can achieve powering and sensing through the same device.

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Experimental and numerical studies on working parameter selections of a piezoelectric-painted-based ocean energy harvester attached to fish aggregating devices

Cited by 6 publications

References 25 publications

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

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

Numerical Study of the Hydrodynamic Response of Biodegradable Drifting Fish Aggregating Devices in Regular Waves

Double-Swing Spring Origami Triboelectric Nanogenerators for Self-Powered Ocean Monitoring

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