Innovative rubble mound breakwaters for overtopping wave energy conversion

Vicinanza, Diego; Contestabile, Pasquale; Nørgaard, Jørgen; Andersen, Thomas Lykke

doi:10.1016/j.coastaleng.2014.02.004

Cited by 133 publications

(107 citation statements)

References 14 publications

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“…Moving from the recent intense research on the SSG (Buccino et al, 2012;Buccino et al, 2015a;Buccino et al, 2015b;Oliveira et al, 2016), a slightly different device, denominated Overtopping BReakwater for Energy Conversion (OBREC), is under development (Vicinanza et al, 2013a;Vicinanza et al, 2014, Contestabile et al, 2017a. It is an innovative breakwater with a special shape designed to accommodate an overtopping wave energy converter (OTD) and all the instrumental equipment for the energy conversion.…”

Section: The Obrec Technologymentioning

confidence: 99%

“…The first test campaign (AAU2012) was conducted with the aim to compare and evaluate the difference between the OBREC and a traditional rubble mound breakwater with a crown wall on the top (Vicinanza et al, 2014). In order to estimate the functionality of the OBREC as a coastal structure defense, two main parameters were evaluated: the reflection coefficient and the overtopping at the rear side of the structure.…”

Section: Campaign Test Aau2012mentioning

confidence: 99%

“…After the campaign test in 2012, tentative design formulas have been proposed to evaluate the reflection and the overtopping at the rear side of the structure and into the reservoir. Further design formulas have been also presented to estimate the resultant forces acting on the different part of the device since the application of the existing formulas from literature is not suitable to the OBREC due to its particular geometrical shape (Vicinanza et al, 2014).…”

Section: Campaign Test Aau2012mentioning

confidence: 99%

“…On the top of the seaward vertical wall of the machine room, a triangular parapet has been installed. This structure, denominated nose, has a slope of 45° compared to the vertical and it has aimed to reduce the water discharge at the rear side of the WEC, as demonstrated by Vicinanza et al (2014) and by authors (Kortenhaus et al, 2003;Pearson et al, 2004;Van Doorslaer and de Rouck, 2011) who conducted tests on conventional breakwaters and seawall.…”

Section: Geometry and Materialsmentioning

confidence: 99%

“…6). The aim is to acquire and analyze pressure data to compare it with existing formula in literature and validate pressure data measured in the experimental test in small scale in 2012 (Vicinanza et al 2014) and in 2014 (Contestabile et al, 2017a). Two highresolution cameras are used to capture the wave profile when waves overtop the ramp and impact on the vertical wall.…”

Section: Instrumentationmentioning

confidence: 99%

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Full-Scale Prototype of an Overtopping Breakwater for Wave Energy Conversion

Contestabile

Ferrante

Lauro

et al. 2017

Int. Conf. Coastal. Eng.

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The Overtopping BReakwater for Energy Conversion (OBREC) is a new typology of overtopping wave energy converter (OTD) integrated into a traditional rubble mound breakwater. The device can be considered as an innovative non-conventional breakwater that has the same functions as the traditional structures with the addedvalued of the energy production. The paper presents a comprehensive overview of the OBREC, offering a synthesis of the complete design process, from the results of the two complementary test campaigns in small scale carried out in 2012 and 2014 at Aalborg University, to the description of the full-scale device installed in Naples in 2016. The device represents the first OTD device in full-scale integrated into an existing rubble mound breakwater and it has been equipped by an instrumental apparatus to measure its response to the wave interaction. The monitoring of the full-scale device in the port of Naples, particularly during storm conditions, is aimed to study the scaling effects in wave loading and the overall performance of this breakwater-integrated OTD, included performance in terms of the energy production.

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Section: The Obrec Technologymentioning

confidence: 99%

Section: Campaign Test Aau2012mentioning

confidence: 99%

Section: Campaign Test Aau2012mentioning

confidence: 99%

Section: Geometry and Materialsmentioning

confidence: 99%

Section: Instrumentationmentioning

confidence: 99%

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Full-Scale Prototype of an Overtopping Breakwater for Wave Energy Conversion

Contestabile

Ferrante

Lauro

et al. 2017

Int. Conf. Coastal. Eng.

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Multi-chamber oscillating water column wave energy converters and air turbines: A review

2018

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Summary The oscillating water column (OWC) is a more common type of wave energy converter (WEC) that has been the subject of the study and development for several decades. Multi–chamber oscillating water column (MC–OWC) devices or arrays have the advantage of being more efficient in energy extraction compared to a single chamber system, particularly in more chaotic sea states. A variety of single and array OWC devices have been proposed and studied on a small–scale, whereas few large–scale devices have been tested under ocean wave conditions. This paper provides a concise review of the current state of MC–OWC device development in laboratory conditions. The review highlights explicitly the main stages of MC–OWC device development for one ongoing study as an example. This review was based on the available information in the literature from 2003 to 2012, in addition, further work is presented as part of the current study at the University of Technology Sydney. This study is from 2015 to 2018. The discussion shows the challenges that a device needs to overcome to be more competitive with other WECs in the global of wave energy converter area.

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