Design optimization of a multifunctional wave energy device

Palma, Giuseppina; Contestabile, Pasquale; Formentin, Sara Mizar; Vicinanza, Diego; Zanuttigh, Barbara

doi:10.1201/9781315229256-29

Cited by 4 publications

(5 citation statements)

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“…The model has been largely adopted in coastal engineering to evaluate the interaction between waves and traditional breakwaters. Moreover, the model has been used by Palma et al (2016) for numerical simulation on the OBREC, comparing the results with data from the test campaign carried out in 2012 (Vicinanza et al, 2014). The present paper shows results validated against experimental data from test campaign performed in 2014 and presented by Contestabile et al (2017).…”

Section: Numerical Modelmentioning

confidence: 67%

“…The computational domain is designed to fully replicate the wave flume and the laboratory set-up. Moreover, contrary to previous numerical simulation on the OBREC (Palma et al, 2016), irregular waves were generated using the real movement of the wave maker in the laboratory as inputs, following the virtual boundary force method explained in Lara et al, (2011). Consequently, the numerical results are here validated through a direct time series comparison with the signals measured in the laboratory test.…”

Section: Numerical Modelmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Modeling of Wave Interaction With a Non-Conventional Breakwater for Wave Energy Conversion

Lauro¹,

Maza²,

Lara³

et al. 2018

Int. Conf. Coastal. Eng.

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The hybrid non-conventional breakwaters are innovative coastal structures, which have as a primary function the coastal and harbours protection, but with the important benefit of electricity production, due to their combination with Wave Energy Converters. The most recent example of a non-conventional breakwater is called OBREC, standing for Overtopping Breakwater for Energy Conversion (Vicinanza et al., 2014). The device consists of a traditional rubble mound breakwater, in which the seaward armour layer in the upper part is replaced with a frontal sloping ramp and a reservoir. The structure is designed to capture and gather the water that overtops the crest ramp. The potential energy of the water stored in the reservoir is converted into kinetic energy and then into electrical energy by flowing through low head hydraulic turbines coupled with generators, exploiting the different water levels between the reservoir and the sea level.

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Section: Numerical Modelmentioning

confidence: 67%

Section: Numerical Modelmentioning

confidence: 99%

Numerical Modeling of Wave Interaction With a Non-Conventional Breakwater for Wave Energy Conversion

Lauro¹,

Maza²,

Lara³

et al. 2018

Int. Conf. Coastal. Eng.

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“…The exploitation of energy from the sea though Wave Energy Converters (WECs) is increasingly catching on, and numerous technological solutions are renovating this field [2,3]. The idea to integrate WECs into traditional coastal structures is not recent, and lately, it is moving toward the highest level of research and development [4][5][6][7][8][9][10].…”

Section: Motivations and Perspectivementioning

confidence: 99%

Crown Wall Modifications as Response to Wave Overtopping under a Future Sea Level Scenario: An Experimental Parametric Study for an Innovative Composite Seawall

et al. 2020

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The overtopping phenomenon at the rear side of breakwaters has particular importance in harbor protection. Undoubtedly, this topic needs to be taken even more seriously, considering the sea level rise. The present study focuses on the effectiveness in the reduction of the wave overtopping of a triangular parapet placed on the top of an innovative concrete superstructure. The last is part of the OBREC device (Overtopping BReakwater for wave Energy Conversion), an overtopping structure which is integrated into a traditional rubble-mound breakwater, to convert wave energy into electricity. Parametric laboratory tests, including the influence of water depth, have led to the evaluation of the accuracy of the main literature formulations and to the introduction of a new overtopping formula to take into account the influence of the parapet geometry. The results highlight the capability of the parapet in significantly increasing the hydraulic protection compared to a breakwater with a traditional crown wall. The findings from this work are expected to support in promoting and developing adaptive management strategies for existing coastal defenses and smart approaches in the construction and maintenance of new ones, with special reference to future sea-level-rise scenarios.

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“…Following Palma [41], the calibration of the 2-D numerical model has been performed considering, at the same time, the representation of K r and q reservoir under normal conditions. This procedure implied the variation of the porosity n assigned to the layers of the breakwater, under the same wave attack.…”

Section: Calibration Of the 2-d Numerical Modelmentioning

confidence: 99%

Numerical Simulations of the Hydraulic Performance of a Breakwater-Integrated Overtopping Wave Energy Converter

Palma

Formentin

Zanuttigh

et al. 2019

JMSE

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OBREC is the acronym that stands for Overtopping Breakwater for Energy Conversion. It is a multifunctional device aimed to produce energy from the waves, while keeping the harbour area protected from flooding. In this paper, the inclusions of a berm to reduce wave reflection, the shape of the sloping plate to maximise wave overtopping and the reservoir width and the crown wall shape to maximise wave energy capture while keeping the harbour safety were analysed to optimize the hydraulic and structural performances of the device. Several configurations were numerically investigated by means of a 2DV RANS-VOF code to extend the results already obtained during previous experimental campaigns. The wave reflection coefficient, the average wave overtopping flows and the wave loadings along the structure are computed, compared with existing formulae and discussed with reference to the OBREC prototype installed in the Port of Naples.

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Design optimization of a multifunctional wave energy device

Cited by 4 publications

References 0 publications

Numerical Modeling of Wave Interaction With a Non-Conventional Breakwater for Wave Energy Conversion

Numerical Modeling of Wave Interaction With a Non-Conventional Breakwater for Wave Energy Conversion

Crown Wall Modifications as Response to Wave Overtopping under a Future Sea Level Scenario: An Experimental Parametric Study for an Innovative Composite Seawall

Numerical Simulations of the Hydraulic Performance of a Breakwater-Integrated Overtopping Wave Energy Converter

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