González-Gorbeña, Eduardo

Pacheco, André

Plomaritis, Theocharis A.

Sequeira, Claudia

Universidade do Algarve

Assessing the Effects of Tidal Energy Converter Array Size 
on Hydrodynamics of Ria Formosa (Portugal)
Eduardo González-Gorbeña#1, André Pacheco#2, Theocharis A. Plomaritis#3, Cláudia Sequeira#4
# Centre for Marine and Environmental Research (CIMA), Universidade do Algarve (UAlg),
Edifício 7, Campus de Gambelas Faro, 8005-139, Portugal
# e-mail: 1 eisenmann@ualg.pt; 2 ampacheco@ualg.pt; 3 tplomaritis@ualg.pt; 4 cdsequeira@ualg.pt
Cork – Ireland; August 27 to September 1, 2017 
SCORE - Sustainability of using Ria Formosa Currents On Renewable Energy production - proposes to test for the first time on Portuguese waters a floatable tidal energy converter (TEC),
the Evopod 1:10th scale 1kW (E1) prototype from OceanFlow Energy Ltd. The innovative aspect of TEC testing in Portugal lies with the unique morphological characteristics associated with
the device deployment site at Ria Formosa, a coastal lagoon protected by a multi-inlet barrier system located in southern Portugal. It is therefore ideal to analyse both the energy extraction
efficiency and eventual impacts that extracting energy from the flowing currents will have on the ecological communities and physical settings of a shallow-water estuarine environment.
About SCORE project
Region of a study
Methodology
Collect geophysical, 
hydrodynamic and ecological 
data of the pilot site prior to 
TEC deployment
Validate a 2D hydrodynamic 
model
Identify optimum location for 
E1 placement (U0 ≥ 0.7 m/s 
during t ≥ 20% of the time) 
Deployment of Evopod E1
Collect hydrodynamic, 
ecological and turbine 
performance data during E1 
operation
Validate TEC momentum sink 
turbine model to calculate 
wake velocity and
energy production
Assess the effects of TEC arrays 
on hydrodynamics, sediment 
transport and water quality
Acknowledgements
SCORE – Sustentabilidade de Produção de 
Energia das   Correntes de Maré da Ria Fomosa
PTDC/AAG-TEC/1710/2014
OpTiCA – Optimisation of Tidal Energy 
Converter Arrays
H2020-MSCA-IF-EF-RI-2016 – 748747
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Assessing the effects of Tidal Energy Converter array size on hydrodynamics of Ria Formosa (Portugal)

This paper investigates the effects of Tidal Energy Converter (TEC) array size at a tidal channel on flood/ebb discharges at multi-inlet coastal lagoon by applying numerical modelling. The paper presents a case study for the Faro-Olhão inlet in the Ria Formosa (Portugal), a potential site for tidal in-stream energy extraction. Arrays of up to 11 rows with 5 TECs each were studied to assess impacts on inlets discharges changes. For the particular cases assessed the results show that tidal energy extraction will have a greater impact on Ancão and Armona inlets discharges together with the Faro-Olhão inlet. Future work is directed to include impacts on sediment dynamics and optimise TEC array size as a function of multiple design variables subject to environmental constraints.info:eu-repo/semantics/publishedVersio

G-Gorbeña, Eduardo

Sapientia (Univ. do Algarve)

Assessing the Effects of Tidal Energy Converter Array Size on Hydrodynamics of Ria Formosa (Portugal)Eduardo González-Gorbeña#1, André Pacheco#2, Theocharis A. Plomaritis#3, Cláudia Sequeira#4# Centre for Marine and Environmental Research (CIMA), Universidade do Algarve (UAlg),Edifício 7, Campus de Gambelas Faro, 8005-139, Portugal# e-mail: 1 eisenmann@ualg.pt; 2 ampacheco@ualg.pt; 3 tplomaritis@ualg.pt; 4 cdsequeira@ualg.ptCork – Ireland; August 27 to September 1, 2017 SCORE - Sustainability of using Ria Formosa Currents On Renewable Energy production - proposes to test for the first time on Portuguese waters a floatable tidal energy converter (TEC),the Evopod 1:10th scale 1kW (E1) prototype from OceanFlow Energy Ltd. The innovative aspect of TEC testing in Portugal lies with the unique morphological characteristics associated withthe device deployment site at Ria Formosa, a coastal lagoon protected by a multi-inlet barrier system located in southern Portugal. It is therefore ideal to analyse both the energy extractionefficiency and eventual impacts that extracting energy from the flowing currents will have on the ecological communities and physical settings of a shallow-water estuarine environment.About SCORE projectRegion of a studyMethodologyCollect geophysical, hydrodynamic and ecological data of the pilot site prior to TEC deploymentValidate a 2D hydrodynamic modelIdentify optimum location for E1 placement (U0 ≥ 0.7 m/s during t ≥ 20% of the time) Deployment of Evopod E1Collect hydrodynamic, ecological and turbine performance data during E1 operationValidate TEC momentum sink turbine model to calculate wake velocity andenergy productionAssess the effects of TEC arrays on hydrodynamics, sediment transport and water qualityAcknowledgementsSCORE – Sustentabilidade de Produção de Energia das   Correntes de Maré da Ria FomosaPTDC/AAG-TEC/1710/2014OpTiCA – Optimisation of Tidal Energy Converter ArraysH2020-MSCA-IF-EF-RI-2016 – 748747% difference of maximum instantaneous flood (top) and ebb (bottom) discharges for each inlet.%difference of cumulative discharges during a spring tide flood (top) and ebb (bottom)cycle for each inlet.……0.00.20.40.60.81.01.20.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00Electrical Power [kW]Flow Velocity [m/s]E1 Powe Curve

https://sapientia.ualg.pt/bitstream/10400.1/10403/1/EGGE-2017_Poster-EWTEC_v2.pdf

Assessing the effects of Tidal Energy Converter array size on hydrodynamics of Ria Formosa (Portugal)

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Universidade do Algarve

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Sapientia (Univ. do Algarve)

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