Wave energy resource variation off the west coast of Ireland and its impact on realistic wave energy converters’ power absorption

Peñalba, Markel; Ulazia, Alain; Ibarra-Berastegui, Gabriel; Ringwood, John V.; Sáenz, Jon

doi:10.1016/j.apenergy.2018.04.121

Cited by 55 publications

(49 citation statements)

References 69 publications

(90 reference statements)

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“…On the other hand, Wave Period Ratio (WPR) described in [7,8,41] which relates the energy period to the average zero-crossing period was obtained for the trend computation of wave period. The WPR changes depending on the area of study, which, in the case of Iquique and Valparaiso, lies between 0.8 and 1.…”

Section: Computation Of the Wave Energy Fluxmentioning

confidence: 99%

“…However, historical long-term variations of the wave climate have been often neglected. The authors have studied these long-term variations in the Bay of Biscay and off the west coast of Ireland in [7] and [8], respectively, analysing wave trends over the 20th century and the influence of these trends in the performance of specific WECs. In both locations, positive trends have been found, with wave height (H s ), peak period (T p ) and wave energy flux (WEF) increasing significantly over the 20th century.…”

Section: Introductionmentioning

confidence: 99%

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Historical Evolution of the Wave Resource and Energy Production off the Chilean Coast over the 20th Century

et al. 2018

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The wave energy resource in the Chilean coast shows particularly profitable characteristics for wave energy production, with relatively high mean wave power and low inter-annual resource variability. This combination is as interesting as unusual, since high energetic locations are usually also highly variable, such as the west coast of Ireland. Long-term wave resource variations are also an important aspect when designing wave energy converters (WECs), which are often neglected in resource assessment. The present paper studies the long-term resource variability of the Chilean coast, dividing the 20th century into five do-decades and analysing the variations between the different do-decades. To that end, the ERA20C reanalysis of the European Centre for Medium-Range Weather Forecasts is calibrated versus the ERA-Interim reanalysis and validated against buoy measurements collected in different points of the Chilean coast. Historical resource variations off the Chilean coast are compared to resource variations off the west coast in Ireland, showing a significantly more consistent wave resource. In addition, the impact of historical wave resource variations on a realistic WEC, similar to the Corpower device, is studied, comparing the results to those obtained off the west coast of Ireland. The annual power production off the Chilean coast is demonstrated to be remarkably more regular over the 20th century, with variations of just 1% between the different do-decades.

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Section: Computation Of the Wave Energy Fluxmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Historical Evolution of the Wave Resource and Energy Production off the Chilean Coast over the 20th Century

et al. 2018

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“…In the study of wave density, most articles have only focused on SWH, while the wave period is often neglected [43][44][45][46]. Some studies [47,48] have found that there is a positive effect of wave period on wave energy density. In this regard, this paper briefly analyzes the wave period and the distribution of 10-year average wave period, as shown in Figure 5.…”

Section: Calculate Methods Of Energy Assessmentmentioning

confidence: 99%

“…For wave energy, regions where the wave energy density is greater than 2 KW/m is considered to be an available area [24,50,51]; whereas areas with values of wave energy density larger than 20 KW/m are considered to be rich areas. There is no certain standard of lowest available wave energy density for wave energy conversion equipment [48,52]. Therefore, for the assessment of wind energy distribution, 2KW/m was selected as the minimum standard for assessing the available wave energy density in the wind energy distribution.…”

Section: Occurrences Of Exploitable Wind and Wave Energymentioning

confidence: 99%

10-Year Wind and Wave Energy Assessment in the North Indian Ocean

et al. 2019

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With increasing energy shortages and global warming, clean and renewable energy sources, such as wind and wave energy, have gained widespread attention. In this study, the third-generation wave model WAVEWATCH-III (WW3) is used to simulate wave height in the North Indian Ocean (NIO), from 2008 to 2017, using the wind data from the European Centre for Medium-Range Weather Forecasts Renalysis datasets. The simulated results show good correlation with data obtained from altimetry. Analysis of wind and wave energy resources in the NIO is carried out considering energy density, the exploitable energy, the energy density stability, and monthly and seasonal variability indices. The results show that most areas of the NIO have abundant wind energy and at the Somali Waters are rich in wave energy resources, with wind energy densities above 200 W/m2 and wave energy densities above 15 KW/m. The most energy-rich areas are the Somali Waters, the Arabian Sea, and the southern part of the NIO (wind energy density 350–650 W/m2, wave energy density 9–24 KW/m), followed by the Laccadive sea (wind energy density 150–350 W/m2, wave energy density 6–9 KW/m), while the central part of the NIO is relatively poor (wind energy density less than 150 W/m2, wave energy density below 6 KW/m).

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“…The cup anemometers installed on the buildings of the University of Basque Country in Eibar enabled the development of a preliminary calibration methodology based on quantile-matching techniques that were used previously by the authors for wind energy and wave energy [25][26][27]. In the scientific literature, different calibration or bias correction techniques have been developed and compared for the analysis of several parameters, such as temperature and precipitation (see [28][29][30]).…”

Section: Quantile-mapping Calibrationmentioning

confidence: 99%

An Energy Potential Estimation Methodology and Novel Prototype Design for Building-Integrated Wind Turbines

et al. 2019

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ROSEO-BIWT is a new Building-Integrated Wind Turbine (BIWT) intended for installation on the edge of buildings. It consists of a Savonius wind turbine and guiding vanes to accelerate the usual horizontal wind, together with the vertical upward air stream on the wall. This edge effect improves the performance of the wind turbine, and its architectural integration is also beneficial. The hypothetical performance and design configuration were studied for a university building in Eibar city using wind data from the ERA5 reanalysis (European Centre for Medium-Range Weather Forecasts’ reanalysis), an anemometer to calibrate the data, and the actual small-scale behavior in a wind tunnel. The data acquired by the anemometer show high correlations with the ERA5 data in the direction parallel to the valley, and the calibration is therefore valid. According to the results, a wind speed augmentation factor of three due to the edge effect and concentration vanes would lead to a increase in working hours at the rated power, resulting annually in more than 2000 h.

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Wave energy resource variation off the west coast of Ireland and its impact on realistic wave energy converters’ power absorption

Cited by 55 publications

References 69 publications

Historical Evolution of the Wave Resource and Energy Production off the Chilean Coast over the 20th Century

Historical Evolution of the Wave Resource and Energy Production off the Chilean Coast over the 20th Century

10-Year Wind and Wave Energy Assessment in the North Indian Ocean

An Energy Potential Estimation Methodology and Novel Prototype Design for Building-Integrated Wind Turbines

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