Conjectures on the Failure of the OWC Breakwater at Mutriku

Medina-López, Encarni; Allsop, William; Dimakopoulos, A.; Bruce, Tom

doi:10.1061/9780784480304.063

Cited by 15 publications

(17 citation statements)

References 7 publications

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“…Worldwide, OWC deployment has seen the failure of a number of other devices destroyed by the harsh marine environment. Devices such as the Toftestallen, Norway; Osprey, Scotland; Pico Plant, Portugal; and the Mutriku in Spain [63,66,71].…”

Section: Owc Devices and Developmentmentioning

confidence: 99%

Development of multi-oscillating water columns as wave energy converters

Doyle

Aggidis

2019

Renewable and Sustainable Energy Reviews

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Wave energy development continues to advance in order to capture the immense ocean energy available globally. A large number of wave energy conversion concepts have been developed and researched to date but we are still not able to see a convergence of technologies. This provides the requirement and additional opportunity for further research. This paper provides a review and discusses the development of the OWC concept of wave energy converters in general and the evolved variation of the M-OWC more specifically. The review outlines the increased potential of the M-OWC concept and its current state through its advancement in recent years. Although still under development the M-OWCs have the potential to provide promising results, through the various innovative concepts under consideration, and support the progression and further development of wave energy as another serious contender in the renewables energy mix.

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Section: Owc Devices and Developmentmentioning

confidence: 99%

Development of multi-oscillating water columns as wave energy converters

Doyle

Aggidis

2019

Renewable and Sustainable Energy Reviews

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“…Among existing types of wave energy converters, only some types are appropriate to be entirely embedded in the breakwaters of ports, such as Oscillating Water Column and Over Topping Device [30][31][32]. In this case, the total construction cost of wave energy converters and breakwaters could be lower, and the overall benefit will be increased.…”

Section: Managerial Insights and Policy Suggestions On Encouraging Grmentioning

confidence: 99%

Development of Green Ports with the Consideration of Coastal Wave Energy

Zhu

et al. 2018

Sustainability

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Considering the rapid development of maritime logistics, the reduction of energy consumption at ports is important in the sustainable development of global economics. Oceans have been known as sources of clean energy, and wave energy is attracting more and more attention from both scholars and practitioners. Even though much effort has been made to develop advanced technologies of wave energy, it is still not clear how ports and electricity plants will evaluate its performance and make decisions on the investment. This paper analyzed the decision framework of ports and electricity plants that can decide how much to invest into wave energy converters, by considering the uncertainty of wave energy supply. A mathematical model is developed to obtain the optimal decisions of a single port and electricity plant for different cases. We show that in most cases, the port has a no lower motivation for investing in the wave energy than the electricity plant. Our theoretical analyses also shed light on the impacts of the parameters on the optimal decisions. Considering the difficulty in estimating the uncertainty of wave energy supply, we extend the distribution-free model to our problem which can make our model more practical.

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“…Unfortunately, the Mutriku case (see e.g. Medina-Lopez, et al, 2015) demonstrated that design uncertainty and unpredictable weather may contribute to potential damage. There is extensive literature -based upon physical and numerical modelling -exploring loadings on the structure and within the chamber.…”

Section: Introductionmentioning

confidence: 99%

Violent in-Chamber Loads in an Oscillating Water Column Caisson

Pawitan¹,

Gossling²,

Allsop³

et al. 2018

Int. Conf. Coastal. Eng.

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In 2009, four of 16 chambers in the Mutriku breakwater-integrated Oscillating Water Column (OWC) were badly damaged by storms, probably due to breaking wave loads, and slam within the chamber. To minimize exposure of future plant to such risks, it is necessary to characterise wave conditions under which such an installation could experience impact loads. This characterisation can be crucial to controling the power-take off resistance to increase the survability of the device during extreme weather. Large scale physical model tests in the Grosse Wellenkanal (GWK) included a video camera installed inside the chamber facing the rear chamber wall. Pressure sensors in the ceiling of the chamber were utilised to quantify the water loads. In-chamber impact pressures of up to 8 ÏgH were recorded on the chamber ceiling, associated with the â€˜sloshingâ€™ observed. The â€œsloshingâ€ phenomenon is not uncommon and should be considered in design processes.

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Conjectures on the Failure of the OWC Breakwater at Mutriku

Cited by 15 publications

References 7 publications

Development of multi-oscillating water columns as wave energy converters

Development of multi-oscillating water columns as wave energy converters

Development of Green Ports with the Consideration of Coastal Wave Energy

Violent in-Chamber Loads in an Oscillating Water Column Caisson

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