Life Cycle Assessment of an Oscillating Wave Surge Energy Converter

Apolonia, Maria; Simas, Teresa

doi:10.3390/jmse9020206

Cited by 11 publications

(8 citation statements)

References 22 publications

(25 reference statements)

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“…A small number of LCA studies have been undertaken for Wave Energy Converters (WECs) [7][8][9][10][11][12][13][14][15][16][17].…”

Section: Life Cycle Assessment Of Offshore Renewablesmentioning

confidence: 99%

“…The global warming potential (GWP) of WECs has been found to range from 23 gCO 2 e/kWh [7] to 105 gCO 2 e/kWh [11], as shown in Table 1. Many of these studies focus on lifecycle impacts only in terms of carbon and energy audits [7][8][9][10], but more recent publications have explored a wider range of metrics [11][12][13][14][15][16][17], accounting for additional ecosystem impacts such as eutrophication and ecotoxicity. The literature also highlights the impact of assumptions and scope of LCA studies, as some examples can be found where results differ for the same or similar input data.…”

Section: Life Cycle Assessment Of Offshore Renewablesmentioning

confidence: 99%

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Life Cycle Assessment of a Point-Absorber Wave Energy Array

et al. 2021

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“…A small number of LCA studies have been undertaken for Wave Energy Converters (WECs) [7][8][9][10][11][12][13][14][15][16][17].…”

Section: Life Cycle Assessment Of Offshore Renewablesmentioning

confidence: 99%

Section: Life Cycle Assessment Of Offshore Renewablesmentioning

confidence: 99%

Life Cycle Assessment of a Point-Absorber Wave Energy Array

et al. 2021

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“…Wave power represents a considerable source of renewable energy, nevertheless, most of the Wave Energy Converters (WECs) developed still require further research and demonstration tests (Apolonia and Simas, 2021). As highlighted by Esteban et al (2017), the technology behind WECs is not mature enough to be developed industrially and the Levelized Cost of Energy (LCOE) remains too high.…”

Section: Introductionmentioning

confidence: 99%

Benchmarking marine renewable energy technologies through LCA: Wave energy converters in the Mediterranean

Bruno

Maccanti²,

Pulselli³

et al. 2022

Front. Energy Res.

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The present work evaluates the environmental performance of three wave energy converters including on-shore oscillating water columns and oscillating floaters embedded in piers, and near-shore seabed-based buoys in the Mediterranean Basin. The life cycle assessment methodology was used to account for their potential environmental impact, in terms of carbon footprint (t CO2eq), considering four main phases, i.e., manufacturing of material components, assembling and installation on site, maintenance in time, and decommission end of life. Results show the greenhouse gas emission from different lifecycle processes, based on the inventory of main energy inputs and materials, highlighting the major impact of the manufacture of the structural components (52 %), especially due to the limited durability of materials. In order to compare the performances of the three different wave energy converters, the carbon intensity of electricity was evaluated considering a range of electricity production per technology based on data available in scientific literature. The results obtained for a single device (203–270 g CO2eq‧kWh−1 for the oscillating water column system; 94–374 g CO2eq‧kWh−1 for oscillating floater and 105–158 g CO2eq‧kWh−1 for the seabed-based buoy) highlight that wave energy converters are promising solutions to harvest wave energy, showing lower carbon intensity of electricity values compared to fossil energy sources; nevertheless, technological improvements are needed to increase efficiency and achieve the performances of other renewable energy sources. Moreover, the combination of wave energy converters with other solutions, such as offshore wind turbines, represents a valuable option in the future to increase productivity and foster energy transition of the Mediterranean regions.

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“…It has been shown that the elastic synthetic rope has great potential in the application of wave energy converter (WEC) mooring system [2]. Moreover, the decommissioning process and reusement possibilities of synthetic ropes are being studied since this provides an opportunity for financial, environmental, and socioeconomic benefits [3,4].…”

Section: Introductionmentioning

confidence: 99%

Numerical Modelling for Synthetic Fibre Mooring Lines Taking Elongation and Contraction into Account

Ćatipović

Alujević

Rudan

et al. 2021

JMSE

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Synthetic fibre mooring lines are used as an alternative to traditional steel wire ropes due to their higher strength to weight ratio. Benefits are also found in relative ease of handling, and therefore the marine industry has largely accepted this type of mooring line. By rules and regulations, the design of mooring lines should be based on a coupled dynamic analysis of a particular mooring system and moored vessel. This approach incorporates damping and inertial forces (i.e., hydrodynamic reactions) acting directly on the mooring lines due to their motion through the seawater. On the basis of the outer diameter of the synthetic fibre rope, the Morison equation gives estimations of the mooring line hydrodynamic reactions. In comparison to the traditional steel wire ropes, the synthetic mooring lines usually have relatively larger elongations and consequently larger reductions of the outer diameter. Furthermore, the lower diameter certainly leads to reduced values of damping and added mass (of mooring lines) that should be considered in the coupled model. Therefore, the aim of this study was to develop a new numerical model that includes diameter changes and axial deformations when estimating the hydrodynamic reactions. The development of the model is carried out with a nonlinear finite element method for mooring lines with the assumption of large three-dimensional motions. The obtained results show the effectiveness of the newly developed model as a more accurate approach in calculation of hydrodynamic reactions.

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Life Cycle Assessment of an Oscillating Wave Surge Energy Converter

Cited by 11 publications

References 22 publications

Life Cycle Assessment of a Point-Absorber Wave Energy Array

Life Cycle Assessment of a Point-Absorber Wave Energy Array

Benchmarking marine renewable energy technologies through LCA: Wave energy converters in the Mediterranean

Numerical Modelling for Synthetic Fibre Mooring Lines Taking Elongation and Contraction into Account

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