Hybrid resonant wave energy harvesting buoy for sensor applications

Gemme, Douglas A.; Greene, H. Ronald; Tucker, Travis A.; Sepe, R.B.; Bastien, Steven P.

doi:10.23919/oceans.2013.6741075

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…Since vertical cylinders are most frequently used for point absorbers [9,17,19,22,23], and spheres do not couple with waves in pitch, we only consider vertical cylinders as the shape of the buoy of point absorbers. A schematic diagram of the point absorber is shown in Figure 1.…”

Section: Methodsmentioning

confidence: 99%

On Power-Absorption Degrees of Freedom for Point Absorber Wave Energy Converters

2020

JMSE

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Point absorbers are extensively employed in wave energy conversion. In this work, we studied the point absorber with the buoy of a vertical cylindrical shape. Wave power absorption is obtained through the relative motion between the buoy and an internal mass. Three power-absorption degrees of freedom are investigated, i.e., surge, heave, and pitch, together with the influence of wave compliance of the buoy. Results show that, to absorb more power, the internal mass should be as large as possible for power absorption in translational degrees of freedom, i.e., surge and heave. The total rotational inertia should be as large as possible and the center of mass should be as low as possible for power absorption in pitch. Wave compliance of the buoy slightly enhances the power absorption in surge, but significantly weakens the power absorption in pitch. Surge is the best degree of freedom for power absorption owing to the highest efficiency, indicated by the largest capture width ratio. The simple resistive control is found to be adequate for wave power absorption of the self-reacting point absorber.

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Section: Methodsmentioning

confidence: 99%

On Power-Absorption Degrees of Freedom for Point Absorber Wave Energy Converters

2020

JMSE

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“…A proof-of-concept system was built and tested to investigate the feasibility of the design, which could successfully generate more than 50 watts [18]. A hybrid PV-ocean wave-powered buoy was later designed and tested by Gemme et al [19]. The system includes a linear generator and PV panels.…”

Section: Introductionmentioning

confidence: 99%

A Modular Wave Energy Converter for Observational and Navigational Buoys

Vella

Foley

Sloat

et al. 2022

Fluids

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More than 80% of the ocean is not fully mapped or even observed, even though it covers over 70% of our planet’s surface. One of the primary challenges for ocean observation and monitoring is the required power for exploration and monitoring systems, which often operate in remote areas of the ocean. This work addresses the design and development of an ocean wave energy converter that can be installed on observational buoys to provide enough power for sensors, cameras, data acquisition and recording, as well as data transfer units. The initial simulations of the prototype indicate that this system can produce up to 3.7–3.85 watts of power on average, with greater than 12 watts of maximum power in two selected sites in California and Hawaii. The proposed system is simple and low-cost. Further, multiple energy converters can be installed on one buoy to address higher power needs.

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Wave energy converters with rigid hull encapsulation: A review

Maheen

2023

Sustainable Energy Technologies and Assessments

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Hybrid resonant wave energy harvesting buoy for sensor applications

Cited by 3 publications

References 3 publications

On Power-Absorption Degrees of Freedom for Point Absorber Wave Energy Converters

On Power-Absorption Degrees of Freedom for Point Absorber Wave Energy Converters

A Modular Wave Energy Converter for Observational and Navigational Buoys

Wave energy converters with rigid hull encapsulation: A review

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