1st Edition

Advances in Renewable Energies Offshore Proceedings of the 3rd International Conference on Renewable Energies Offshore (RENEW 2018), October 8-10, 2018, Lisbon, Portugal

Edited By Carlos Guedes Soares Copyright 2019

    Advances in Renewable Energies Offshore is a collection of the papers presented at the 3rd International Conference on Renewable Energies Offshore (RENEW 2018) held in Lisbon, Portugal, on 8-10 October 2018. The 104 contributions were written by a diverse international group of authors and have been reviewed by an International Scientific Committee. The book is organized in the following main subject areas:

    - Modelling tidal currents
    - Modelling waves
    - Tidal energy devices (design, applications and experiments)
    - Tidal energy arrays
    - Wave energy devices (point absorber, multibody, applications, control, experiments, CFD, coastal OWC, OWC and turbines)
    - Wave energy arrays
    - Wind energy devices
    - Wind energy arrays
    - Maintenance and reliability
    - Combined platforms
    - Moorings, and
    - Flexible materials

    Advances in Renewable Energies Offshore collects recent developments in these fields, and will be of interest to academics and professionals involved in the above mentioned areas.

    Keynote lectures

    Considerations on future emerging technologies in the ocean energy sector
    D. Magagna, L. Margheritini, A. Moro & P. Schild

    Smoothed Particle Hydrodynamics (SPH) for renewable energies offshore
    P.K. Stansby


    Modelling tidal currents

    How to correctly measure turbulent upstream flow for marine current turbine performances evaluation?
    B. Gaurier, G. Germain & G. Pinon

    Marine current energy in Eastern Australia: Evolution of currents and mesoscale anticyclonic eddies
    B. O’Callaghan, A. Chabchoub & T. Waseda

    Depth average tidal resource assessment considering an open channel flow
    L.M. Flores Mateos & M. Hartnett

    Monitoring tidal currents with a towed ADCP at tidal energy site in Alderney Race (Raz Blanchard)
    M. Thiebaut, A. Sentchev & P. Bailly du Bois


    Modelling waves

    Assessment of the wave spectral characteristics in the Portuguese test zone
    C. Lucas, D. Silva & C. Guedes Soares

    Wave energy resource assessment: A comparative study for two coastal areas in Japan
    K. Sasmal, A. Webb, T. Waseda & S. Miyajima

    Wave energy farm performance and availability as functions of weather windows
    M. Goteman, J. Mathew, J. Engstrom, V. Castellucci, M. Giassi & R. Waters

    Prediction of short-term wind and wave conditions using Adaptive Network-based Fuzzy Inference System (ANFIS) for marine operations
    M. Wu, C. Stefanakos & Z. Gao

    Methodology for evaluating the economic pay-off of a more powerful wave energy resource
    O. Roberts, H. Jeffrey & P. Ruiz-Minguela

    Wave height error estimation with the triple collocation method for the Canary Islands
    R.B. Fonseca, M. Goncalves & C. Guedes Soares

    Performance evaluation of various wave energy converters along the western side of Indian EEZ
    R. Patel, G. Nagababu, B.A. Srinivas, S. Singh Kachhwaha, M. Seemanth, S.V.V. Arun Kumar & S. Aich Bhowmick

    Validation of wave breaking in intermediate water wave groups for HOS-NWT with laboratory experiments
    S.A. Hasan, V. Sriram & R. Panneer Selvam


    Tidal energy devices (Design)

    Effects of blockage and freestream turbulence intensity on tidal rotor design and performance
    B. Cao, R.H.J. Willden & C.R. Vogel

    Blade-resolved CFD analysis and validation of blockage correction methods for tidal turbines
    G. Tampier Brockhaus & F. Zilic de Arcos

    Wake characterisation of an undulating membrane tidal energy converter
    M. Trasch, A. Deporte, J.-B. Drevet, B. Gaurier & G. Germain

    Design and optimization of a marine current turbine: Effects of pitch angle and twist distribution
    T. Karthikeyan & A. Samad


    Tidal energy devices (Applications)

    Comparison of twin-basin lagoon systems against conventional tidal power plant designs
    A. Angeloudis, N. Hawkins, S.C. Kramer & M.D. Piggott

    Implementation of tidal energy convertor in low current area
    C.H. Jo, S.J. Hwang, J.C.K. Tong & J.C.L. Chan

    Concept development for deployment of a modular, floating, tidal-stream device
    E.J. Ransley, S. Brown, N. Xie, D. Greaves, R. Nicholls-Lee, L. Johanning, P. Weston & E. Guerrini

    Simulation of a horizontal axis tidal turbine for direct driven reverse-osmosis desalination
    F. Greco & A. Jarquin-Laguna


    Tidal energy devices (Experiments)

    Experimental investigation of a novel tidal supercharger driven by tidal energy for reverse osmosis seawater desalination
    C. Ling, X. Lou, J. Li & Y. Zhang

    Towing tank testing of a controlled-circulation Darrieus turbine
    L. Chatellier, J.M.R. Gorle, F. Pons & M. Ba

    Wave tank experiments of a floating, tidal-stream energy device
    N. Xie, E.J. Ransley, S. Brown, D. Greaves, R. Nicholls-Lee, L. Johanning, P. Weston & E. Guerrini

    Computational analysis and experimental verification of a boundary integral equation model for tidal turbines
    Z. Sarichloo, F. Salvatore, F. Di Felice, M. Costanzo, R. Starzmann & C. Frost


    Tidal energy arrays

    Unsteady loading in a tidal array due to simulated turbulent onset flow
    H. Mullings & T. Stallard

    Numerically modelling spatial distribution of O&M costs for tidal platforms
    J. McDowell, P. Jeffcoate, T. Bruce & L. Johanning

    Axial-flow hydrokinetic turbine array: Optimization and performance prediction
    L. Sharma & D. Chatterjee

    Competition effects between nearby tidal turbine arrays—optimal design for Alderney Race
    Z.L. Goss, M.D. Piggott, S.C. Kramer, A. Avdis, A. Angeloudis & C.J. Cotter


    Wave energy devices (Point absorber)

    OES Task 10 WEC heaving sphere performance modelling verification
    K. Nielsen, F. Wendt, Y.-H. Yu, K. Ruehl, I. Touzon, B.W. Nam, J.S. Kim, K.-H. Kim, S. Crowley, W. Sheng, A. Kurniawan, D. Ogden, S. Girardin, A. Babarit, R. Costello, S. Giorgi, A. Roy, H. Bingham, R. Read, M.M. Kramer & S. Thomas

    Hydrodynamic analysis of different geometries of a wave energy absorber buoy
    M.N. Berenjkoob, M. Ghiasi & C. Guedes Soares

    Wave diffraction by a floating fixed truncated vertical cylinder based on Boussinesq equations
    S.C. Mohapatra, H. Islam & C. Guedes Soares

    Numerical study on nonlinear hydrodynamic performance of a heaving buoy type wave energy converter under nonlinear wave condition
    S.J. Kim, W. Koo & M.J. Shin


    Wave energy devices (Multibody)

    Optimal wave energy converter geometry for different modes of motion
    A. Garcia-Teruel & D.I.M. Forehand

    Semi-submersible platform concept for a concentric array of wave energy converters
    J.F. Gaspar, T.S. Hallak & C. Guedes Soares

    Hydrodynamics of a new two body wave energy converter in the frequency domain
    M. Kamarlouei & C. Guedes Soares

    Moored multi-float WEC M4 and hybrid with wind: Experiments and modelling
    P.K. Stansby, E. Carpintero Moreno & T. Stallard


    Wave energy devices (Applications)

    Initial development of a generic method for analysis of flexible membrane wave energy converters
    A. McDonald, Q. Xiao, D.I.M. Forehand, H. Smith & R. Costello

    Verification of a boundary element model for wave forces on structures with porous elements
    E.B.L. Mackay, A. Feichtner, R.E. Smith, P.R. Thies & L. Johanning

    Passivity preserving moment-based finite-order hydrodynamic model identification for wave energy applications
    N. Faedo, Y. Pena-Sanchez & J.V. Ringwood

    Conceptual design of compliant mechanical wave energy converter
    S. Chandrasekaran, V.V.S. Sricharan & S. Joseph


    Wave energy devices (Control)

    A review of fault tolerant design in wave energy converters
    M. Kamarlouei, J.F. Gaspar, C. Guedes Soares, B.F. Cruz & M.J.G.C. Mendes

    A reduced wave-to-wire model for controller design and power assessment of wave energy converters
    M. Penalba & J.V. Ringwood

    Control of a wave energy converter using a multi-agent system and machine learning methods
    N. Pereira, D. Valerio & P. Beirao

    Study on the time-variability of hydrodynamic coefficients for wave energy converter heave plates
    S. Saeidtehrani, B. Butcher, A. Brown & K. Niemeyer


    Wave energy devices (Experiments)

    Experimental assessment of a 6-float M4 wave energy converter
    E. Carpintero Moreno & P.K. Stansby

    Experimental study of behaviour and efficiency on a backward bent duct buoy
    H. Diaz, S.A. Sannasiraj & C. Guedes Soares

    Prototyping and wave tank testing of a floating platform with point absorbers
    M. Kamarlouei, J.F. Gaspar, M. Calvario, T.S. Hallak, C. Guedes Soares, M.J.G.C. Mendes & F. Thiebaut


    Wave energy devices (CFD)

    Simulations of floating wave energy devices using adaptive mesh refinement
    C. Eskilsson & J. Palm

    Validation of a CFD-based numerical wave tank of the Wavestar WEC
    C. Windt, J.V. Ringwood, J. Davidson, E.J. Ransley, M. Jakobsen & M. Kramer

    Simulation of motions and forces for a generic wave energy converter using RANS CFD
    I. Pregnan Johannesen & G. Tampier Brockhaus

    Parametric excitation of moored wave energy converters using viscous and non-viscous CFD simulations
    J. Palm, L. Bergdahl & C. Eskilsson


    Wave energy devices (Coastal OWC)

    Hydrodynamic analysis of a land-based oscillating water column device using fully nonlinear numerical wave flume
    A. Abbasnia & C. Guedes Soares

    The Pico OWC wave power plant: Its life from conception to closure 1986–2018
    A.F.O. Falcao, L.M.C. Gato, A.J.N.A. Sarmento & A. Brito-Melo

    Non-conventional overtopping breakwater for energy conversion
    E. Di Lauro, P. Contestabile & D. Vicinanza

    The application of numerical simulation to overtopping type wave generator equipment
    T. Takahashi, M. Minami & H. Tanaka


    Wave energy devices (OWC)

    Parametric motion detection for an oscillating water column spar buoy
    G. Giorgi & J.V. Ringwood

    Behavior of U-oscillating water column arrays
    G. Malara & F. Arena

    Application of a stepped sea bottom condition to improve hydrodynamic performance of OWC devices
    K. Rezanejad & C. Guedes Soares

    A practical estimation method of PTO and a sea test of a PW-OWC type Wec using a wave dissipating double caisson
    K. Kihara, Y. Hosokawa, K. Masuda & T. Ikoma

    Optimization of OWC power efficiency and structural integrity
    M.L. Jalon & F. Brennan

    Wave-to-wire model of the Tupperwave device and performance comparison with conventional OWC
    P. Benreguig, J. Murphy, M. Vicente & S. Crowley

    Numerical and experimental investigation of the hydrodynamic performance of a fixed dual-chamber OWC device
    R. Wang & D. Ning

    Investigation into multi-oscillating water column wave energy converters and a novel concept
    S. Doyle & G.A. Aggidis

    Numerical validation of hydrodynamic characteristics of open-sea U-type oscillating water column wave energy converter
    S. John Ashlin, S.A. Sannasiraj, V. Sundar, G. Malara, F. Arena & A. Romolo

    Influence of damping on an oscillating water column WEC integrated with a breakwater
    S.N. Rajan, D. Karmakar & C. Guedes Soares

    Performance of an OWC type WEC replaced from a wave dissipating double-caisson
    T. Ikoma, H. Eto, K. Masuda & S. Shibuya


    Wave energy devices (Turbines)

    Test results of a twin-rotor turbine for OWC wave energy converters
    B.S. Lopes, L.M.C. Gato, A.F.O. Falcao & J.C.C. Henriques

    Development of a counter-rotating impulse turbine for bi-directional airflow
    M. Takao, R. Sasaki, M.Md. Ashraful Alam, S. Okuhara & Y. Kinoue

    Wells turbines dynamic simulation using CFD and a lumped parameter model
    T. Ghisu, F. Cambuli, P. Puddu & I. Virdis


    Wave energy arrays

    Wave energy converter arrays: Motion response of inter-connected array
    B. Howey, G. Iglesias, K.M. Collins, M. Hann, D. Greaves, R. Gomes & J.C.C. Henriques

    Design of an optimization scheme for the WaveSub array
    E. Faraggiana, I. Masters & J. Chapman

    Trapping phenomena by an array of vertical bottomless cylindrical bodies
    S.A. Mavrakos, I.K. Chatjigeorgiou & D.N. Konispoliatis

    Analysis of interaction effects between WECs in four types of wave farms
    S.-H. Yang, J.W. Ringsberg & E. Johnson


    Wind energy devices

    A review of the biofouling parameters influencing the drag force coefficient of offshore structures
    A. Bakhtiari, F. Schoefs & H. Ameryoun

    CART—a compact and robust wind turbine design for south Asia
    F. Adam, M. Schroeter, V.V. Manh & P. Dierken

    On the dynamics of the kite carousel
    K.N. Luttik, P.S. Anderson, L. Johanning & I.M. Viola

    Assessment of long-term extreme response of a floating support structure using the environmental contour method
    K. Raed, A.P. Teixeira & C. Guedes Soares

    Analysis of vessel shielding effects during installation of spar floating wind turbine
    M.A.A.A. Hassan & C. Guedes Soares

    Estimating the offshore wind energy along the Portuguese coast using WRF and satellite data
    N. Salvacao, A. Bentamy & C. Guedes Soares

    Hydrodynamic identification of NAUTILUS FOWT platform from small scale tests
    V. Nava, J. Galvan, M. Sanchez-Lara, C. Garrido-Mendoza, G. Perez-Moran, M. Le Boulluec, B. Augier & R. Rodriguez-Arias


    Wind energy arrays

    Development and validation of the higher-order finite-difference wind farm simulator, WInc3D
    G. Deskos, M.D. Piggott & S. Laizet

    Site selection process for floating offshore wind farms in Madeira Islands
    H. Diaz, R.B. Fonseca & C. Guedes Soares

    Economic aspects of an offshore wind farm located in Cantabria (North of Spain)
    L. Feijoo-Diaz, C. Alvarez-Feal, L. Carral-Couce & L. Castro Santos


    Maintenance and reliability

    Energyhub@Sea—one technical solution for offshore wind maintenance
    F. Adam, P. Dierken, M.M. Aye & M. Flikkema

    An opportunistic condition-based maintenance policy for offshore wind farm
    J.C. Kang, L.P. Sun, Y. Lu, J. Sobral & C. Guedes Soares

    Weighting the influencing factors on offshore wind farms availability
    J. Sobral, J.C. Kang & C. Guedes Soares

    Scope and feasibility of autonomous robotic subsea intervention systems for offshore inspection, maintenance and repair
    L. Fahrni, P.R. Thies, L. Johanning & J. Cowles

    Reliability prediction of bearings of an offshore wind turbine gearbox
    U. Bhardwaj, A.P. Teixeira & C. Guedes Soares


    Combined platforms

    Laboratory tests on an original wave energy converter combining oscillating water column and overtopping devices
    L. Cappietti, I. Simonetti, V. Penchev & P. Penchev

    Feasibility study of hybrid offshore wind turbine with solar platform in Persian Gulf
    M. Bahadori, H. Ghassemi & M. Sadegh Bahadori

    Study of a multipurpose platform
    M.J. Legaz, P. Mayorga & J. Fernandez

    Second order wave drift damping of a TLP floating structure concept for combined wind and wave energy
    T.P. Mazarakos & S.A. Mavrakos



    Predicting failure of dynamic cables for floating offshore wind
    D.G. Young, C. Ng, S. Oterkus, Q. Li & L. Johanning

    Comparative study on two different mooring systems for a buoy
    G. Xiang, S. Xu, S. Wang & C. Guedes Soares

    Mooring system monitoring of offshore renewable energy floating platforms
    I. Touzon, A. Garcia-Corcuera, V. Nava, R. Rodriguez & B. de Miguel

    Alternative mooring systems for 2nd generation of tidal energy converters
    L.R. Nunez, A. Lopez & M. Perez de la Portilla

    An overview of synthetic mooring cables in marine applications
    S. Wang, S. Xu, G. Xiang & C. Guedes Soares

    Comparison between full-scale measurements and numerical simulations of mooring forces in a floating point-absorbing WEC system
    X. Lang, S.-H. Yang, J.W. Ringsberg, E. Johnson, C. Guedes Soares & M. Rahm


    Flexible materials

    Hydroelastic modelling of composite tidal turbine blades
    F. Zilic de Arcos, R.H.J. Willden & C.R. Vogel

    Parametric design of a hydroelastic energy harvester
    S. Costa, L. Chatellier, F. Pons & M. Ba

    A procedure for choosing optimal materials of wind turbine flexible blades
    V. Cognet, B. Thiria & S. Courrech du Pont



    Design of an offshore multipurpose support vessel
    N. Almany, M. Tekgoz & Y. Garbatov


    Carlos Guedes Soares is a professor of Naval Architecture and Marine Engineering at Instituto Superior Técnico, University of Lisbon, Portugal. He received the MSc and Ocean Engineer degrees from the Massachusetts Institute of Technology, Cambridge, in 1976, the PhD degree from the Norwegian Institute of Science and Technology, Trondheim, Norway, in 1984, and the Doctor of Science degree from the Technical University of Lisbon, Lisbon, Portugal, in 1991.
    Carlos is the President of the Centre for Marine Technology and Engineering (CENTEC), which is a research centre of the Instituto Superior Técnico that is recognized and funded by the Portuguese Foundation for Science and Technology. He has coauthored more than 400 journal papers and 600 conference papers and has been involved in more than 60 international research projects and 20 national projects.