
Eduardo González-GorbeñaDanish Hydraulic Institute (DHI) · Energy and Ports - UK Solutions
Eduardo González-Gorbeña
Ph.D.
About
28
Publications
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318
Citations
Introduction
Additional affiliations
October 2016 - July 2019
Publications
Publications (28)
A procedure for the optimisation of hydrokinetic turbine array layout through surrogate modelling is introduced. The method comprises design of experiments, computational fluid dynamics simulations, surrogate model construction, and constrained optimisation. Design of experiments are used to build polynomial and Radial Basis Function surrogates as...
At the present time, the role of renewable energy in Brazil is significant as hydropower and other renewable energies, principally biomass, contribute 76.9 and 6.0 %, respectively, towards the total offer of electricity, as compared to the corresponding values of 15.8 and 2.8 % worldwide. Nevertheless, there is already an increasing role which is p...
In Brasil, São Marcos Bay has a highly promising potential for the generation of electricity through the conversion of tidal current energy. This paper presents a methodology to study impacts of Hydrokinetic Energy Converter Farms (HECF) in coastal regions. Their location, power production and hydrodynamic, sedimentological and morphological proces...
The objective of this study is the formulation and solution of the optimal green ship approach to a tidal port, from the economic and environmental points of view. The work presented is the first quantitative modeling approach for this problem. In the model presented in this paper , the total cost of ship fuel consumption in the approach of a ship...
The energy that can be extracted from tidal currents is one of the most promising renewable energy sources due to its high density/predictability. Within this paper this energy source is evaluated economically respecting sustainability principles. This evaluation contrasts from previous studies due to the application of a cost-benefit analysis base...
The Ria Formosa is a sheltered large coastal lagoon located on the Atlantic South Coast of Portugal, that has been classified as a natural park since 1987. The lagoon hosts a diverse and abundant fish community and other species of commercial importance. Several economical activities are supported by shipping, and as such, vessel traffic within the...
This paper investigates the optimum tidal energy converter array density at a tidal inlet by applying surrogate-based optimisation. The SBO procedure comprises problem formulation, design of experiments, numerical simulations, surrogate model construction and constrained optimisation. This study presents an example for the Faro-Olhão Inlet in the R...
The aim of this paper is to evaluate how lubricant selection affects gearbox efficiency and overall energy production by analysing real data from wind farms, monitored and controlled by a Supervisory Control and Data Acquisition (SCADA system). The turbines analysed worked with two or more oil types for the same amount of hours, which allowed to es...
This paper presents a study for estimating the size of a tidal turbine array for the Faro-Olhão Inlet (Potugal) using a surrogate optimization approach. The method compromises problem formulation, hydro-morphodynamic modelling, surrogate construction and validation, and constraint optimization. A total of 26 surrogates were built using linear RBFs...
A B S T R A C T - This paper investigates the optimum tidal energy converter array density at a tidal inlet by applying surrogate-based optimisation. The SBO procedure comprises problem formulation, design of experiments, numerical simulations , surrogate model construction and constrained optimisation. This study presents an example for the Faro-O...
Electrical power cables in tidal turbine farms contribute a significant share to capital expenditure (CAPEX). As a result, the routing of electrical power cables connecting turbines to cable collector hubs must be designed so as to obtain the least cost configuration. This is referred to as a tidal cable routing problem. This problem possesses seve...
This paper presents the results of a pilot experiment with an existing tidal energy converter (TEC), Evopod 1 kW floatable prototype, in a real test case scenario (Faro Channel, Ria Formosa, Portugal). Operational results related to the description of power generation capacity, energy capture area and proportion of energy flux are presented and dis...
This presentation presents the results of a pilot experiment with an existing tidal energy converter (TEC), Evopod 1 kW floatable prototype, in a real test case scenario (Faro Channel, Ria Formosa, Portugal). Operational results related to the description of power generation capacity, energy capture area and proportion of energy flux are presented...
This paper presents the results of a pilot experiment with an existing tidal energy converter (TEC), Evopod 1 kW floatable prototype, in a real test case scenario (Faro Channel, Ria Formosa, Portugal). A baseline marine geophysical, hydrodynamic and ecological study based on the experience collected on the test site is presented. The collected data...
A study for the optimisation of in-stream tidal energy converter array layout for a three-dimensional fluid flow field is presented. The study involves design of experiments, computational fluid dynamics simulations, surrogate model construction, and constrained optimisation. Linear Radial Basis Functions (RBF) are used to build surrogate models as...
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 ro...
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 instream energy extraction. Arrays of up to 11 row...
The challenge for floating offshore wind structures is to reduce costs. The industry needs a wind turbine support solution that can be fabricated and deployed from existing shipyards and port facilities, while investors need accurate estimations and forecasts of wind resources and quantified information on the inherent variability in wind power gen...
In the computational modeling of water environments there are cases where slender vertical structures, like bridge piers, are part of the modeling domain. In this work, four strategies for modeling the presence of bridge piers were studied: Mesh Refinement (MR), Nodal Island (NI), Additional Stress Term (AST) and Increasing Bottom Roughness (IBR)....
In the computational modeling of water environments there are cases where slender vertical structures, like bridge piers, are part of the modeling domain. In this work, four strategies for modeling the presence of bridge piers were studied: Mesh Refinement (MR), Nodal Island (NI), Additional Stress Term (AST) and Increasing Bottom Roughness (IBR)....
At the present time, the role of renewable energy in Brazil is significant as hydropower and other renewable energies, mainly biomass, contribute with 70.7% and 9,6%, respectively, towards the total offer for electric energy, as compared to the corresponding figures of 14,8% and 5,6% regarding worldwide averages. Nevertheless, there is already an i...
At the present time, the role of renewable energy in Brazil is significant as hydropower and other renewable energies, mainly biomass, contribute with 70.7% and 9,6%, respectively, towards the total offer for electric energy, as compared to the corresponding figures of 14,8% and 5,6% regarding worldwide averages. Nevertheless, there is already an i...
In Brasil, São Marcos Bay has a highly promising potential for the generation of electricity through the conversion of tidal current energy. This paper presents a methodology to study impacts of Hydrokinetic Energy Converter Farms (HECF) in coastal regions. Their location, power production and hydrodynamic, sedimentological and morphological proces...
A metamodel simulation based optimisation approach for the tidal turbine location problem is introduced. The method comprises design of experiments, computational simulations, metamodel construction and formulation of a mathematical optimisation model. Sample plans with different number of data points are used to fit 2nd and 3rd order polynomial as...
At the present time, the role of renewable energy in the world is significant, the major such sources being hydropower and other renewable energies, mainly biomass whose contributions are 15,9% and 2,8%, respectively, towards the total offer for elec-tricity generation (MME, 2011). Nevertheless, there is already an increasing role which is played b...
El desarrollo de este estudio se ha realizado como requisito obligatorio para la culminación del programa de Master Oficial en Ingeniería de Costas y Puertos, ofrecido por el Instituto de Hidraúlica de Cantabria.
El tema escogido se ha realizado tanto, en base al reciente aumento del interés suscitado que rodea la denominada “ciencia del surf,” com...
Questions
Questions (3)
Hi all,
I'm need to perform an extreme wave trough analysis. In order to do that, I'm using Toffoli's trough distribution .
Toffoli, A., Bitner-Gregersen, E., Onorato, M., & Babanin, A. V. (2008). Wave crest and trough distributions in a broad-banded directional wave field. Ocean Engineering, 35(17-18), 1784-1792.
Could you recommend more recent approaches than that proposed by Toffoli?
Thank you.
Best regards,
Eduardo
Hi all,
I'm interested in modelling internal waves inside a fjord.
I would appreciate it if anyone can share recommendations on what will be the best modelling approach and modelling packages to attain this goal.
Thank you.
Best regards,
Eduardo
Does anyone know how to plan a multi-level fractional factorial design of experiments?
I have 3 factors with 5 levels each, i.e.: 5³ = 125 experiments for a full factorial design, and I would like to reduce it to 45 experiments.
Matlab provides functions for multi-level full factorial and 2-level fractional factorial, but I don't know any function for multi-level fractional factorial designs...