Sustainability of the Renewable Energy Extraction Close to the Mediterranean Islands

Franzitta, Vincenzo; Curto, Domenico

doi:10.3390/en10030283

Cited by 40 publications

(23 citation statements)

References 36 publications

(43 reference statements)

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“…As a rule, hydrotechnical facilities are structures that are subjected to complex mechanical loadings [2][3][4][5][6][7][8], among which of primary importance are the hydrotechnical forces associated with water movement [9,10]. The most important factors that cause water movement in coastal zones are surface waves and wave-driven currents [11][12][13]. Dynamic phenomena occurring in coastal zones [14], including wind-driven sea waves which are a major cause, contribute to coastal erosion and abrasion [15].…”

Section: Introductionmentioning

confidence: 99%

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Simulation and Experimental Studies of a Multi-Tubular Floating Sea Wave Damper

2018

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This article explores the issue of shore protection from sea waves and has presented the main methods used for coastal protection. It discusses the construction and operation of the multi-tubular floating sea wave damper that has been developed at the Maritime University of Szczecin by Professor Bolesław Kuźniewski. This paper presents the results of the research project aimed at creating and examining a prototype of the device. The research aimed to confirm the two hypotheses: "the largest damping force should occur when the damping units are placed at an optimal distance equal to half the length of the wave to be damped" and "a compensation of the horizontal forces caused by the rippling of water should occur in the damping device". Simulation studies of the behaviour of the device's buoyancy elements when floating on waves were performed using the ANSYS AQWAWB and AQWA software. The buoyancy components were modelled as TUBE elements with a diameter of 0.11 m and a length of 1.5 m and as triangular and square surface elements. The results of the experimental research and the computer simulation of the operation of the prototype device have also been presented. The external conditions adopted corresponded to the frequency of a wave equal to 0.807 Hz and to the wave height in front of the device which was equal to 0.1 m. Experimental studies were conducted in an auxiliary model basin with dimensions of 60 m × 7 m × 3.12 m at the Ship Hydromechanics Division, Ship Design and Research Centre (CTO S. A.) in Gdańsk (Poland). The study recorded the distribution of the vertical and horizontal forces acting on the prototype device as well as the wave height both in front of and behind the device. Both hypotheses were proven. Simulation and experimental studies have been summarised. A proposal for future works has also been presented.

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Section: Introductionmentioning

confidence: 99%

“…Particularly great coastal Particularly great coastal damage can be observed in Belgium, Denmark, Estonia, France, Spain and Italy. Interesting case studies regarding Mediterranean islands can be found in references [11,12,16]. Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experimental Studies of a Multi-Tubular Floating Sea Wave Damper

2018

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“…Moreover, wave energy is now considered to be suitable for the electricity supply of small islands and coastal areas [1,3,38]. The Atlantic Ocean is often considered for wave energy projects due to the high wave power density available [39], but some recent articles have analyzed several islands case studies in Mediterranean Sea [40][41][42], involving some changes in technologies in order to fit the wave characteristics of the considered location [40].…”

Section: Wave Energymentioning

confidence: 99%

Electrical Power Supply of Remote Maritime Areas: A Review of Hybrid Systems Based on Marine Renewable Energies

et al. 2018

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Abstract:Ocean energy holds out great potential for supplying remote maritime areas with their energy requirements, where the grid size is often small and unconnected to a continental grid. Thanks to their high maturity and competitive price, solar and wind energies are currently the most used to provide electrical energy. However, their intermittency and variability limit the power supply reliability. To solve this drawback, storage systems and Diesel generators are often used. Otherwise, among all marine renewable energies, tidal and wave energies are reaching an interesting technical level of maturity. The better predictability of these sources makes them more reliable than other alternatives. Thus, combining different renewable energy sources would reduce the intermittency and variability of the total production and so diminish the storage and genset requirements. To foster marine energy integration and new multisource system development, an up-to-date review of projects already carried out in this field is proposed. This article first presents the main characteristics of the different sources which can provide electrical energy in remote maritime areas: solar, wind, tidal, and wave energies. Then, a review of multi-source systems based on marine energies is presented, concerning not only industrial projects but also concepts and research work. Finally, the main advantages and limits are discussed.

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“…Apart from the literatures listed above, there are a lot of studies about compounded breakwater system integrated with wave energy converters, such as floating breakwaters attached with a pile-supported OWC structure [9], rubble mound breakwaters with embedded collecting wave reservoir type or Savonius rotor type WECs [10,11], etc. On the other hand, most remote ocean areas like islands are far from the power grid, so providing electricity from a land power grid to these areas is often costly and non-environmentally friendly [12]. In such cases, applying a renewable energy system in remote places has been the best choice [13,14].…”

Section: Introductionmentioning

confidence: 99%

A Floating Platform with Embedded Wave Energy Harvesting Arrays in Regular and Irregular Seas

Zhang

Liu

et al. 2017

Energies

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This paper presents a study on a cost-effective engineering model that integrates an array of floating wave energy converters with a vast platform, a viable option for multi-functional performance in renewable energy capture and ocean space utilization. The wave energy converters are floating buoyance columns flexibly connected with the elastic platform. Hydrodynamic interactions among the columns are analyzed using an exact matrix transform method based on linear wave theory in the frequency domain. A parametric governing equation of compounded wave energy converter referred to as a wave farm is formulated by using Hamilton's principle which can be discretized using the Galerkin method. The effects of wave conditions and the parameters of hydraulic power take-off (PTO) on the wave energy absorption and dynamic characteristics of the energy harvesting system are investigated. Furthermore, the wave energy capture on irregular waves is also discussed. This research work aims at providing a theoretical guidance for wave energy harvesting system design.

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Sustainability of the Renewable Energy Extraction Close to the Mediterranean Islands

Cited by 40 publications

References 36 publications

Simulation and Experimental Studies of a Multi-Tubular Floating Sea Wave Damper

Simulation and Experimental Studies of a Multi-Tubular Floating Sea Wave Damper

Electrical Power Supply of Remote Maritime Areas: A Review of Hybrid Systems Based on Marine Renewable Energies

A Floating Platform with Embedded Wave Energy Harvesting Arrays in Regular and Irregular Seas

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