Analysis of the coupled dynamic response of an offshore floating multi-purpose platform for the Blue Economy

Li, Liang; Ruzzo, Carlo; Collu, Maurizio; Gao, Yan; Failla, Giuseppe; Arena, Felice

doi:10.1016/j.oceaneng.2020.107943

Cited by 31 publications

(10 citation statements)

References 24 publications

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“…Food and energy are identified as sectors interested in an aquaculture strategy, also in the van den Burg et al (2019) paper that aims to contribute a systemic view of the marine sector boundaries and a methodology for innovative governance of the marine environment. The proposal of a multipurpose platform for evaluating marine environmental conditions is described in the paper of Li et al (2020) as a solution to the off-shore problems and configured to guarantee aquaculture and energy production. Implications of the blue economy and aquaculture in the food and energy areas are also provided by the paper of Fulton et al (2018).…”

Section: Geography Publication Networkmentioning

confidence: 99%

Blue economy and aquaculture before and during the pandemic era: a systematic literature review

Silvestri

Morrone²,

Vecchio³

et al. 2023

BFJ

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PurposeThe paper provides a contribution of systematisation to the literature on the blue economy and aquaculture as challenging issues for achieving sustainable growth and a circular economy. The growing scientific interest in recent years and the increased attention in political agendas make the blue economy and aquaculture as promising fields for scientific investigation. The latter has been confirmed during a particular period too as the pandemic times. To identify those areas of specialisation emerging from the intersection of such topics, the paper embraces a systematic literature review for inspiring future research.Design/methodology/approachThe study covers a period of 20 years by including 85 papers extracted from the Scopus database. Through the adoption of VOSviewer, the investigation explores the main descriptive statistics, while content analysis has been embraced to identify thematic areas.FindingsThe main results of this study are about statistics (i.e. publication trends, geographic distribution, most frequent keywords and most influential authors, etc.). Three main thematic areas have been identified in this study: SDGs and policies for sustainable development, food and energy, business models and managerial issues.Practical implicationsPractical implications arise both for firms and policymakers. About the firsts, interesting insights can be derived in terms of business model innovation, collaborative approaches and technological exploration. About policymakers, inspiration in terms of renewal of strategic guidelines, creation of enabling contextual conditions and evidences for new regulations can be noted.Originality/valueElements of original contributions can be identified in the adoption of an SLR to verify the advancement of the debate till the recent pandemic.

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Section: Geography Publication Networkmentioning

confidence: 99%

Blue economy and aquaculture before and during the pandemic era: a systematic literature review

Silvestri

Morrone²,

Vecchio³

et al. 2023

BFJ

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“…The cross section of the hull is Tshaped. This choice, based on extensive parametric studies, is aimed to: 1) enhance the natural periods of the vertical motions (Li et al, 2020b); 2) protect the inner moonpool; 3) promote modularity. The main characteristics of the platform are reported in Tables 1-3, with respect to dimensions, mass properties and mooring system, respectively.…”

Section: Full-scale Conceptmentioning

confidence: 99%

“…The aim of the two experimental campaigns is to provide pertinent experimental data, in particular with reference to the moonpool dynamics and the coupling effects of wind turbine, wave energy converters and fish cages. It is relevant to note that, in spite of the relatively large dimensions of the full-scale floating platform, hydro-elastic numerical analyses have shown that elasticity could be neglected for the assessment of the overall dynamics (Ruzzo et al, 2019;Li et al, 2020b). Therefore, physical models of the floating support platform have been designed as rigid bodies.…”

Section: Full-scale Conceptmentioning

confidence: 99%

“…The integration of the sub-systems provides evident advantages from functional and economic points of view, but it increases significantly the complexity of the coupled system dynamics. A nonlinear aero-hydro-servoelastic numerical model has been developed within the project (Li et al, 2019(Li et al, , 2020bRuzzo et al, 2019), and further studies are ongoing to refine the numerical results. In this context, pertinent experimental data are essential for its validation and calibration, hence two experimental activities have been arranged.…”

Section: Introductionmentioning

confidence: 99%

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Developments in Renewable Energies Offshore

Slama¹,

Pinon²,

Togneri

et al. 2020

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The Blue Growth Farm" is an ongoing H2020 European project, aimed to the development, engineering and demonstration of a new floating multi-purpose platform concept, devoted to aquaculture, and wind-wave energy production. Due to the significant complexity of the coupled dynamic behavior of the proposed concept, model tests are essential to investigate the most relevant physical phenomena and validate/calibrate the pertinent numerical models. However, the realization of a scaled model of such structure is by itself quite challenging, since each sub-system follows its own scaling laws and requires different strategies to minimize scale effects. The aim of the present paper is to describe the arrangement of the experimental activities, discussing the mechanisms of the scale factor at different scales and related results accuracy, scaling strategies and test environments. The two-phase framework and the scaling strategies proposed may be also useful for future activities on similar concepts.

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“…Further, a number of wave energy converters (WECs) have been designed and tested to date with varying degrees of success [1]. Among them, oscillating water columns (OWCs) have proved to be reliable, efficient and versatile, as they can be easily integrated into vertical breakwaters [2], or into floating multi-purpose platforms [3], thus reducing the associated construction cost. OWCs comprise a semisubmerged hollow chamber with a vertical opening located below the mean water level, which is exposed directly to sea waves.…”

Section: Introductionmentioning

confidence: 99%

Stochastic response determination of U-OWC energy harvesters: a statistical linearization solution treatment accounting for intermittent wave excitation

et al. 2022

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A novel statistical linearization technique is developed for determining approximately the response statistics and the power output of U-Oscillating Water Column (U-OWC) energy harvesting systems. In this regard, first, the governing equations are derived by employing the unsteady Bernoulli equation. Note that the intermittent, i.e., non-stationary, nature of the wave excitation, occurring in severe sea states due to uncovering of the U-OWC inlet, is explicitly accounted for in the herein proposed model. This is done by multiplying the excitation process with a Heaviside function dependent on the instantaneous free surface displacement. Next, the resulting coupled system of nonlinear integro-differential stochastic equations is solved approximately by relying on a statistical linearization technique. Specifically, the original system of nonlinear equations is replaced by an equivalent linear one, whose parameters and response first- and second-order statistics are obtained by minimizing the mean square error between the two systems. A significant novel aspect of the technique relates to the fact that the Heaviside function is replaced in the equivalent linear system by an “equivalent excitation” coefficient to be determined as part of the statistical linearization solution scheme. Further, compared with other relevant solution schemes adopted in earlier research efforts in the literature, it is shown that the developed technique can be construed as a direct generalization that exhibits an enhanced accuracy degree. The U-OWC installed in the Civitavecchia harbor (Rome, Italy) is considered as an illustrative numerical example, where the reliability of the approximate technique is demonstrated by comparisons with pertinent Monte Carlo simulation data.

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Analysis of the coupled dynamic response of an offshore floating multi-purpose platform for the Blue Economy

Cited by 31 publications

References 24 publications

Blue economy and aquaculture before and during the pandemic era: a systematic literature review

Blue economy and aquaculture before and during the pandemic era: a systematic literature review

Developments in Renewable Energies Offshore

Stochastic response determination of U-OWC energy harvesters: a statistical linearization solution treatment accounting for intermittent wave excitation

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