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Structu
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2nd SDWED Symposium -
Advances in Modelling of Wave Energy Devices
At DTU in Lyngby, Denmark
April 26, 2012, 9:00 – 17:00
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Welcome to All!
• Developers
• Researchers
• Students
• IWWWFB workshop participants
• Members of IAB
• Project partners
• …
A total of 70 people from 17 countries!
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Agenda 8:30-9:00 Registration
9.00 Introduction Jens Peter Kofoed AAU-C
WP 1 Hydrodynamics
Chair: Chris Retzler (PWP)
9.20 1.1 Overview - Nonlinear hydrostatic effects Harry Bingham DTU
9.40 1.2 Wave structure interaction model Robert Read DTU
10.00 Coffee break
10.15 1.3 Modeling of long term wave conditions Jacob T. Sørensen / Hans F. Hansen DHI
10.35 1.4 A non-linear numerical test bed for WEDs Nicolai Heilskov DHI
10.55 Open discussion Plenum / IAB
WP 2 Moorings
Chair: Lars Bergdahl (Chalmers)
11.15 2.1 Overview – Modeling of mooring systems Barbara Zanuttigh/ Giovanna Bevilacqua Unibo
11.35 2.2 Review of design practice Martin Sterndorff SE
11.55 Open discussion Plenum / IAB
12.15 Lunch break
WP 3 Power take off
Chairs: Martin Donovan (DONG), Anders Køhler (FPP)
13.15 3.1 Generator systems for WEDs Peter Kracht FRAU
13.35 3.2 Energy Storage Kaiyuan Lu AAU-E
13.55 Open discussion Plenum / IAB
WP4 Wave to wire models
Chairs: Jose Luis Villate (Tecnalia) , Erik Friis-Madsen (WEIA/WD)
14.15 4.1 Overview - Wave-to-wire modeling Kim Nielsen RAM
14.35 4.2 Development of a wave to wire model Francesco Ferri / Marco Alves AAU-C / WavEC
14.55 4.3 Structural analysis of WEDs Andrew Zurkinden AAU-C
15.15 Break
15.40 4.4 Experimental validation of numerical
models
Morten Kramer AAU-C
16.00 Open discussion Plenum / IAB
WP 5 Reliability
Chair: Hans Chr. Sørensen (EU-OEA/Spok)
16.20 5.1 Overview – Reliability of WEDs John D. Sørensen AAU-C
16.35 5.2 Reliability assessment of a WED Simon Ambühl AAU-C
16.50 Open discussion Plenum / IAB
17.00 Closing of the symposium
http://www.sdwed.civil.aau.dk/Events/Ev
ent//2nd-sdwed-symposium--advances-
in-modeling-of-wave-energy-
devices.cid59775
Structu
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Introduction
of the strategic research project/alliance
”Structural Design of Wave Energy Devices”
• Presentation of the SDWED project
• Associated activities
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The Alliance – The Project: Structural Design of Wave Energy Devices
Objective of the project Strengthen and consolidate Denmark’s position as one of the leaders in wave energy research, through the formation of a strategic international research alliance focusing on the structural design of Wave Energy Devices Project granted by the Danish Council for Strategic Research Call: Strategic Research in Sustainable Energy and Environment Theme: Energy Systems of the Future 5 years (2010-2014) 12 Partner organizations - 6 Danish (73 %), 6 International (27 %) Budget: 25 mil. dkr. (19.6 DSF, 5.4 Co-fin. )
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Objectives
• Increase knowledge on loads on Wave Energy Devices, primarily through the development of models for floating structures taking into account hydrodynamics, moorings and power take-off; and the establishment of protocols for design of Wave Energy Devices.
• Create lasting relations between Danish and international top institutions working in the field to achieve greater research capability.
• Increase the reliability and decrease the cost of Wave Energy Devices in such a way that they can feasibly contribute to energy supply.
• Finally, the main societal objective is to improve and consolidate the competitiveness of Danish wave energy, repeat the ‘Danish Wind Adventure’ in a new sector and thus create both growth and knowledge-intensive jobs for Danish society.
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Who are the partners
9.883.113
2.827.962
3.403.647
1.500.970
1.136.666
635.000
1.600.000
1.340.000
576.363
964.000
600.796
525.000
Project
partners
Aalborg University, Dept. Of Civil
EngineeringDHI
DTU Mechanical Engineering
Wave Energy Centre, Portugal
Aalborg University, Dept. of Energy
Systems
Det Norske Veritas B.V., U.K. London
University of Bologna, Italy
Federal University of Rio de Janeiro
(UFRJ), COPPETEC, BrazilRambøll Oil & Gas A/S
Sterndorff Engineering
The University of Edinburgh, School of
Engineering, UKFraunhofer, Germany
Assoc. Prof. Jens Peter Kofoed, AAU-C
Head of Dep. Peter Frigaard, AAU-C
Prof. MSO John Dalsgaard Sørensen, AAU-C
Head of Innovation, Erik Damgaard Christensen, DHI
Hans Fabrisius Hansen, DHI
Iris Pernille Lohmann, DHI
Senior Researcher Ole Rene Sørensen, DHI
Assoc. Prof. Harry Bingham, DTU
Principal Surveyor Claudio Bittencourt, DNV
Assist. Prof. Barbara Zanuttigh, UniBo
Prof. Segen Farid Estefan, UFRJ
Researcher Eliab Ricarte, UFRJ
Wave Energy Consultant Kim Nielsen, RAM
Research Coordinator Ana Brito-Melo, WavEC
Assoc. Prof. Kaiyuan Lu, AAU-E
Owner & Concultant, Martin Sterndorff, SE
Prof. David Ingram, EUIES
Head of Energy Conversion Jochen Bard, FRAU
Organizations Scientific Staff
NN, DTU
NN, UniBo
NN1, AAU-C
NN2, AAU-C
NN, AAU-C
Robert Read, DTU
Ph.D.’s Post Doc.’s
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WP1 WP2
WP3
WP4
WP5
Anticipated main results A novel advanced wave-to-wire model
synthesized from the following results related to wave energy devices to be generated in the project:
• Advanced knowledge on wave loadings
• Advanced knowledge on loads from and behaviour of mooring systems
• Advanced knowledge on loads from and behaviour of PTO systems
• New advanced knowledge on the interaction of the mentioned elements
• Advanced knowledge on the structural reliability of the devices
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Challenges … • Large device variations
• Multiple disciplins involved
• Heavy interactions
Need for a ’JPEG’ approach!
Get a coarse overview
Refine the details
To get the full picture
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Challenges … Incorporation of experiences from associated more established fields
• Often same tools but opposite goals:
• e.g. maximize motions or overtopping rather than minimizing, as in e.g. ship and breakwater design
• Need for more complex models (include non-linearities and interactions)
Need consider both power production and extreme conditions
• Balance structural loads in both conditions
Balance maximizing
power production through
advanced control against
structural wear
Balance overall power
production against
installed generator
capacity
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What do we want to achieve? Overall: Reduce cost of energy….
Need tools for WED design and optimization
Different needs in
• Operating conditions
• Extreme conditions
Focus on
• Power production optimization
• Structural design
Many different WED types
• Provide ’building blocks’
Complex systems, non-linear behavior and interactions
• Need to balance computational speed and accuracy
WP4 - Wave-to-wire
WP1 - Hydrodynamics WP2 - Moorings
WP5 - Reliability
WP3 -
PTO/generator
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Project test cases
Wavestar:
Operating cond.:
HD – lin./non-lin.
Moorings – N.A.
PTO – time dom. adv. control
Extreme cond.:
Simple – floaters out of water
Dexawave:
Operating cond.:
HD – lin.
Moorings – important, interaction
PTO – simple, passive damping
Extreme cond.:
CFD for structural loading
Moorings – dyn. analysis
Weptos:
Operating cond.:
HD – multibody, highly non-linear,
hydrostatics, variation of geometry
Moorings – important, weak
interaction
PTO – highly non-lin.
Extreme cond.:
CFD for structural loading
Moorings – dyn. analysis
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Project management
Project Coordinator:
Jens Peter Kofoed, AAU-C
Exploitation and
Dissemination Manager:
Kim Nielsen, Rambøll
Research TrainingCoordinator:
John Dalsgaard Sørensen,
AAU-C
PROJECT STEERING COMMITTEE INTERNATIONAL ADVISORY BOARD
MANAGEMENT
Harry Bingham, DTU (Leader, WP1)
Barbara Zanuttigh, UniBo (Leader, WP2)
Jochen Bard, IWES (Leader, WP3)
Peter Frigaard,AAU-C (Leader, WP4)
Erik Damgaard Christensen, DHI
8-10 members drawn from industry organizations, developers, and other
stakeholders, including representatives from:
The Wave Energy Industry Association
Denmark (WEIA).
European Ocean Energy Association (EU-
OEA).
Wave energy development companies
Main management units: • Project Steering Commitee (PSC) • Consortium Management (CM) • Exploitation & Dissemination Manager (EDM) • Work Package Leaders (WPL) • Research Training Coordinator (RTC) • International Advisory Board (IAB)
FRAU
Jacob Tornfeldt Sørensen, DHI
Julien De Rouck Ghent University
Lars Bergdahl Chalmers University
Hans Chr. Sørensen EU-OEA, Belgium
Erik Friis Madsen WEIA, Denmark
Niels Ejnar Helstrup JensenEnerginet.dk
Jon Kringelum DONGenergy
Chris Retzler Pelamis
Laurent Marquis Wave Star Energy
Jose Luis Villate Tecnalia
Anders Køhler Floating Power Plant
(Leader, WP5)
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Autumn 2010 Ocean Energy Structures, 1 ECTS AAU: JPK, JFC
28-10-2010 Lecture 1: Overview of the wave energy sector / The Wave Dragon Case JPK
12-10-2010 Lecture 2: Overview of existing wave energy converter technologies JPK
26-10-2010 Lecture 3: Hydraulic and structural evaluation and development of wave energy JPK
02-11-2010 Lecture 4: Performance evaluation of wave energy concept prototypes JFC
09-11-2010 Lecture 5: Integration of wave energy into the grid JFC
Nov. 2010
Master lecture at Helsinki University: Wave Energy Challenges - How to
harness the ressource WAVEC, Ana
22-25.03.2011
Lectures at Padova and Bologna University, Italy (8 hours in total) on
Maritime Energy AAU: PF
Lecture 1-4: Risks related to the development of Maritime Energy (4 hours)
Lecture 5: EIA of Maritime Energy (1 hour)
Lecture 6-7: Wave Forces on Structural Elements on Maritime Energy Devices (2
hour)
Lecture 8: Protocol for Develoment of Maritime Energy (1 hours)
Spring 2011 Ph.D. courses on Wave Energy Utilization, 3 weeks at AAU AAU: JPK
03-06.05.2011 Introduction to Wave Energy Utilization, 2 ECTS - 7 Lectures AAU: LM, HL, JPK. RAM, KIN. WD: HCS.
09-13.05.2011 Experimental Testing for Wave Energy Utilization, 3 ECTS - 13 Lectures AAU: JPK, TLA, JDS, MK. DTU: HB
16-20.05.2011 Advanced Control Theory for Wave Energy Utilization, 3 ECTS - 17 Lectures AAU: MK, SRKN, PF, RT. TU: JL
Jan. 2012
Lectures on Exp. Testing for Wave energy Utilization, Arr. by Israel Martinez
Barrios, Acciona Energía, Spain ? AAU: JPK
Jan. 2012
Fourth CoastLab Teaching School, lectures on Wave Energy Utilization, org. by
Francisco Taveira Pinto, Faculty of Engineering, University of Porto ? AAU: PF / JPK?
NN, DTU
NN, UniBo
NN1, AAU-C
NN2, AAU-C
NN, AAU-C
Robert Read, DTU
Ph.D.’s Post Doc.’s
Torben Christensen, DTU
Giovanna Bevilacqua, UniBo
Morten Kramer, AAU-C Andrew Zurkinden, AAU-C
Francesco Ferri, AAU-C
To date 33 ECTS (~150
lectures) given
Simon Ambühl, AAU-C
Researcher training
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Publication and dissemination
Date Event name Presentation Title Presented by partner Person Location Size of Audience
25-03-2010 Technical Thursday Energy from Wave and Tide RAM KIN Ramboll 15
07-04-2010 Department Research Event, Pres. of SDWED AAU JPK Aalborg 100
20-04-2010 OES-IA Exco Danish Wave Energy Activities 2010 RAM by replacement New Zealand 100
06-05-2010 ICTNORCOM arr. i Hanstholm BrainsBusiness AAU JPK Hanstholm
19-05-2010 Viborg Technical High School General wave energy presentation AAU LM Viborg 50-80?
20-05-2010 Bølgekrafttræf / Ocean Energy Open Days Wave Energy Research and Development at Aalborg University AAU JPK Aalborg 25
18-06-2010 Visit by Danish and Norwegian Utility Leaders Status on Wave Energy Technology and Related Research at Aalborg UniversityAAU JPK Aalborg 16
11-09-2010 Siemens Wind Power Family Day Exhibition of small wave flume with overtopping device AAU 2 student assistents Brande ?
26-09-2010 Seminar 'Who is who' in Offshore Renewable EnergyPublic entities training on wave energy WavEC Ana Lisbon ~50
29-09-2010 DNF Naturvidenskabsfestivalugen 2010 Når bølgerne går højt AAU JPK Teknisk Gymnasium Århus Midtby70-80
30-09-2010 DNF Naturvidenskabsfestivalugen 2010 Når bølgerne går højt AAU JPK Grindsted Gymnasium ~100
01-10-2010 DNF Naturvidenskabsfestivalugen 2010 Når bølgerne går højt AAU JPK Teknisk Gymnasium, Fredericia 70-80
27-09 - 01-10-2010 DNF Naturvidenskabsfestivalugen 2010 Bølgerende med overskylsmodel AAU Lab. Aalborg Zoo ??
12-10-2010 UNF arr. Foredrag om bølgeenergi AAU JPK AAU Badehusvej 15-20
09-11-2010 HTX Sønderjylland Når bølgerne går højt AAU JHN Aalborg 34
10-11-2010 Nørresundby Gymnasium Når bølgerne går højt AAU LM Aalborg 120
23-10-2010 Foredrag/ forelæsning om bølgeenergi Utilization of Wave Energy – potentials, challenges and statusAAU JPK Career Campus i Ringkøbing ~10
29-10-2010 Fra Samling til Handling, Grøn offshore alliance Danish Wave Energy Activities international perspectiveRAM KIN Copenhagen Business School 40
18-01-2011 IDA arr. on Wave Energy Hvad er bølgeenergi? AAU JPK IDA huset 38
18-03-2011 YOUNG ENERGY konference AAU LM Økolariet
06-04-2011 Forskningensdag, Inst. For Byggeri og Anlæg Performance assessment of Wave Energy Converter AAU AFSP Sohn 57, AAU 70
11-04-2011 Visit by Connie Hedegaard to DanWEC, Hanstholm Aalborg Universitets aktiviteter indenfor vedvarende energi, herunder især i forhold tilcentrene i Hanstholm og ØsterildAAU PF/JPK DanWEC 15
23-05-2011 Visit by Reza UHM RE projects at UHM AAU JPK Sohn 57, AAU 12
27-05-2011 SKUB Elevuniversitet Bølgeenergi AAU JHN Sohn 57, AAU ~60
36 invited lectures and public
presentations
Journal / Publication name Issue Volume Year Publication Title Lead Author Affiliation Co-Athours Affiliation
ICASP 2011, Zurich, Switzerland Probabilistic Design of Wave Energy Devices John Dalsgaard Sørensen AAU Jens Peter Kofoed AAU
ICOE 2010, Bilbao, Spain Modelling of the Overtopping Flow on the Wave Dragon Wave Energy ConverterParmeggiani, S. AAU Pecher, A., Kofoed, J.P. and Friis-Madsen, E.AAU
10th Symposium on Overset Composite Grids and Solution Technology. Multiple-domain finite difference solutions for oceanwave-structure interactionRobert Read DTU Harry Bingham DTU
National Conference: Convegno Nazionale di Idraulica e Costruzioni IdraulicheWave structure interaction in an overtopping based wave energy converter and design problems (in italian)Vicinanza, D. 2nd Uni. Naples Margheritini, L. & B. Zanuttigh, Castagnetti, M. Contestabile, P.UniBo
ICS2011, Szczecin, Poland Wave loadings acting on an innovative breakwaters for energy production. Vicinanza, D. Ciardulli, F., Buccino, M., Calabrese, M., and Kofoed, J. P.…/AAU
ICOE 2010, Bilbao, Spain Integration of Wave Energy Converters into Coastal Protection Schemes. Zanuttigh, B. UniBo Martinelli, L., Ruol, P., Kofoed, J. P. and Frigaard, P.UniBo/AAU
ICREPQ 2011, Las Palmas, Spain Wave Energy Power Output Variability of Different Wave Energy Technologies in the Danish part of the North Sea.Chozas, J. F. AAU Sørensen, H.C., Helstrup Jensen, N.E., and Kofoed, J. P.…/AAU
Risø Energy Report 9 - Non-fossil energy technologies in 2050 and beyond. Edited by Larsen, H. And Petersen, L. S., Risø-R-1729(EN), Nov. 2010. ISBN 978-87-550-3812-7, ISBN 978-87-550-3813-4(Internet), ISSN 0106-28409 2010 Hydropower, Chap. 7 Fenhann, J. DTU Kofoed, J. P. AAU
ISOPE 2011, Hawaii, US Performance assessment of the Pico OWC power plant following the EquiMar methodologyPecher, A. AAU Le Crom, I, Neumann, F., Eduardo de Brito Azevedo, Kofoed, J. P.WAVEC/AAU/…
EWTEC 2011, Southhampton 2011 Wave Pressures and Loads on a Small Scale Model of the Svaheia SSG pilot projectM. Buccino Uni. Naples D. Vicinanza, F. Ciardulli, M. Calabrese, J. P. KofoedUni. Naples, 2nd Uni. Naples, AAU
EWTEC 2011, Southhampton 2011 Experiments on the WavePiston, Wave Energy Converter E. Angelilli UniBo B. Zanuttigh, J. P. Kofoed, K. GlejbølUniBo, AAU, WavePiston
EWTEC 2011, Southhampton 2011 Equimar: Development of Best Practices for the Engineering Performance Appraisal of Wave and Tidal Energy ConvertorsC. M. Johnstone Uni. Strathclyde .. many .. J. P. Kofoeda. o. AAU
EWTEC 2011, Southhampton 2011 Experimental Testing of the Langlee Wave Energy Converter focusing on wing configuration J. Lavelle AAU J. P. Kofoed AAU
EWTEC 2011, Southhampton 2011 Predictability of the Power Output of Three Wave Energy Technologies in the Danish North SeaJ. F. Chozas AAU a. o. J. P. Kofoed AAU
EWTEC 2011, Southhampton 2011 Hydrodynamics around DEXA devices and implications for coastal protectionM. Castagnetti UniBo B. Zanuttigh, E. Angelelli, J. P. Kofoed, L. ClausenUniBo, AAU, DEXA
EWTEC 2011, Southhampton 2011 Performance Assessment of the Wave Dragon Wave Energy Converter Based on the EquiMar MethodologyS. Parmeggiani AAU J. F. Chozas, A. Pecher, E. Friis-Madsen, H. C. Sørensen, J. P. KofoedAAU, WD
25 papers published, more in the pipeline
29 press clips 189 LinkedIn group
members Project website
SDWED Symposia
1st: 46 participants
2nd: 70 participants
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Associated activities Danish Partnership for Wave Energy
• A New Strategy for Development of wave energy, due in June 2012
Key meassages:
To make the best use of available ressources for R&D:
• Cooperation (between both concept developers and specialists) around vital common components
• Moorings
• Power take-off
• Power cables for floating devices
• Focus development through CoE calculations
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30-08-2010
Associated activities DanWEC (Danish Wave Energy Center
• Testing of pre-commercial WEDs
• Design basis
• Environmental monitoring
• Monitoring of devices
• Survailance, O&M assistance
• Link to research capacity
• Link to local services
• PR
Currently awaiting final answer to Green Labs application
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More info …
• Web site: www.sdwed.civil.aau.dk
• LinkedIn group: www.linkedin.com/groups?gid=2842052
Thank you for your attention!
Funded by
The International Research Alliance
25-04-2012
