rrl/rrs my group Flashcards

1
Q

rrl/rrs ni heart

A

Optimizing Ocean Energy Harvesting: The Significance of Natural Frequency in Piezoelectric Generator Device Electrical Output

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2
Q

rrl/rrs ni kervy

A

A Hybrid Piezoelectric-electromganetic Nonlinear Energy Harvester Excited by Fluid Flow

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3
Q

rrl/rrs ni steven

A

Energy harvesting from natural flowing water

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4
Q

rrl/rrs ni clarrise

A

Development of an Ocean Wave Energy Harvester using an Array of Flexible Piezoelectric Sensors

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5
Q

rrl/rrs ni annika

A

Progress in piezoelectric material based oceanic wave energy conversion technology

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6
Q

rrl/rrs ni bj

A

An atlas of Piezoelectric Energy Harvesters in Oceanic Applications

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7
Q

rrl/rrs ni howard

A

A review of collecting ocean wave energy based on piezoelectric energy harvester

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8
Q

rrl/rrs ni feinrick

A

Harvesting Energy from Ocean: Technologies and Perspectives

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9
Q

rrl/rrs ni kristine

A

Mechanical Vibrations As An Alternative Energy Source Waves Energy - Piezoelectric Generators

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10
Q

conclusion ni feinrick

A

The conclusion highlights the growing adoption of energy methods to decrease dependence on fuels. It emphasizes the promise of ocean waves and tidal energy, as eco energy sources subject to advancements in technology. Recent progress in energy platforms showcases improvements in equipment design and device comprehension. Improved equipment design is envisaged as a result of a greater understanding of ocean energy and a comprehensive study of numerous potential devices. Ocean energy is a pollution‐free, renewable natural energy source with little impact on the environment.

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11
Q

conclusion ni howard

A

the authors reviewed the research status of the PEH for collecting ocean wave energy. The materials and basic principles of the PEH are introduced. According to the different excitation mechanisms, the PEH that collects ocean wave energy is classified into the following four categories: direct-coupling, frequency-increasing, flow-induced vibration (FIV), and multi-mechanism composite. Each type is analyzed in detail and the application scenarios of the PEH in the ocean

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12
Q

conclusion ni bj

A

Piezoelectric Energy Harvester offer promising potential for harnessing energy from the oceanic enrvironment with varying effectiveness and it depending on specific conditions such as wave pattern and current strength.

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13
Q

conclusion ni annika

A

Piezoelectric materials generate electrical potential under mechanical stress and vice versa. This article reviews the development and prospects of using piezoelectric materials for oceanic wave energy (OWE) conversion, comparing them with other energy conversion methods like electromagnetic and triboelectric systems. It covers various piezoelectric devices, their effects, processing techniques, and arrangements for harvesting OWE. The study finds that while the (d_{13}) mode is easy to implement, it yields low power, whereas the (d_{33}) and (d_{15}) modes offer higher power output. Hanging and floating configurations of piezoelectric devices are recommended for better energy production, and cascading multiple eel-like units can enhance power generation. The article also highlights the need for converting harvested low-frequency AC power into a usable form with storage and inverter systems.
Highlights of Recommendations: Focus on Piezoelectric Devices: -Prioritize the development and optimization of piezoelectric devices for ocean wave energy conversion. Compare Energy Conversion Techniques: -Conduct comparative studies on different methodologies like electromagnetic and electrostatic to identify the most effective approach for wave energy harvesting. Optimize Device Arrangements: -Improve configurations and setups of piezoelectric devices to enhance energy output. Investigate Integration Opportunities: -Explore how piezoelectric systems can be integrated with other renewable energy technologies for greater efficiency

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14
Q

conclusion ni clarrise

A

The high tide produced more power compared to low tide experiments. Approximately 80% of the power harvested correlated linearly with wind speed. The study demonstrated the feasibility of using piezoelectric materials for low-scale power harvesting, but highlighted the need for further modifications to improve stability in harsh open sea environments

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15
Q

conclusion ni kristine

A

The conclusion of the study is that piezoelectric generators have the potential to convert ocean wave vibrations into usable electrical energy, though current output levels are low. The raft-based model showed the most promise, particularly when scaled up, but both models require further refinement to enhance efficiency and energy production. The successful storage of the generated energy in batteries suggests that, with continued development, piezoelectric technology could contribute to renewable energy solutions.

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16
Q

conclusion ni steven

A

VIV harvesters are designed to be placed in the staggered formation in the fluid flow. With a proper alignment of these harvesters, the interaction between these harvesters will further amplify the VIV, which results in exponential increase in the response frequency.

17
Q

conclusion ni kervy

A

In the present study, a new compact design of a hybrid energy harvester that uses a piezoelectric and electromagnetic system was developed for use in submerged pipe flow applications. First, a mathematical model was developed for the coupled systems that also includes an electromechanical coupling when the harvester was subjected to transverse oscillations because of FIV. Afterward, a numerical solver was able to get the time and frequency response of the hybrid harvester. From these results it was shown that tuning the systems to resonate close to each other, the voltage harvested can be increased.

18
Q

conclusion ni heart

A

The study found that maximizing the electrical output of a piezoelectric generator requires knowledge of its inherent frequency. Beginning distance and vibration frequency affect output, however they do not correspond directly with output. Exhibiting optimal performance, the generator operates at its inherent frequency, underscoring the need of precise configuration and tuning for efficient absorption of ocean energy.

19
Q

title nyo sa pr

A

Title: Sustainable power from the sea: Generating Hydrokinetic Energy on a Vertical Platform with Piezoelectricity Generator as an Alternative Electricity provider