user-project: magallanes@sea stage 3 sea …€¦ · ente vasco de la energía ... date desc...

Infrastructure Access Report

Infrastructure: EMEC Nursery Tidal Test Site

User-Project: MAGALLANES@SEA

STAGE 3 Sea testing of a novel floating tidal energy converter with double rotor at 1:10 scale.

Magallanes Renovables SL

Marine Renewables Infrastructure Network

Status: Final

Version: 01

Date: 2015 February 03rd

EC FP7 “Capacities” Specific Programme

Research Infrastructure Action

Infrastructure Access Report: MAGALLANES@SEA

Rev. 01, 2015 February 3rd

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ABOUT MARINET MARINET (Marine Renewables Infrastructure Network for emerging Energy Technologies) is an

EC-funded network of research centres and organisations that are working together to accelerate the development of marine renewable energy - wave, tidal & offshore-wind. The initiative is funded through the EC's Seventh Framework Programme (FP7) and runs for four years until 2015. The network of 29 partners with 42 specialist marine research facilities is spread across 11 EU countries and 1 International Cooperation Partner Country (Brazil).

MARINET offers periods of free-of-charge access to test facilities at a range of world-class research centres. Companies and research groups can avail of this Transnational Access (TA) to test devices at any scale in areas such as wave energy, tidal energy, offshore-wind energy and environmental data or to conduct tests on cross-cutting areas such as power take-off systems, grid integration, materials or moorings. In total, over 700 weeks of access is available to an estimated 300 projects and 800 external users, with at least four calls for access applications over the 4-year initiative.

MARINET partners are also working to implement common standards for testing in order to streamline the development process, conducting research to improve testing capabilities across the network, providing training at various facilities in the network in order to enhance personnel expertise and organising industry networking events in order to facilitate partnerships and knowledge exchange.

The aim of the initiative is to streamline the capabilities of test infrastructures in order to enhance their impact and accelerate the commercialisation of marine renewable energy. See www.fp7-marinet.eu for more details.

Partners

Ireland University College Cork, HMRC (UCC_HMRC)

Coordinator

Sustainable Energy Authority of Ireland (SEAI_OEDU)

Denmark Aalborg Universitet (AAU)

Danmarks Tekniske Universitet (RISOE)

France Ecole Centrale de Nantes (ECN)

Institut Français de Recherche Pour l'Exploitation de la Mer (IFREMER)

United Kingdom National Renewable Energy Centre Ltd.

(NAREC)

The University of Exeter (UNEXE)

European Marine Energy Centre Ltd. (EMEC)

University of Strathclyde (UNI_STRATH)

The University of Edinburgh (UEDIN)

Queen’s University Belfast (QUB)

Plymouth University(PU)

Spain Ente Vasco de la Energía (EVE)

Tecnalia Research & Innovation Foundation (TECNALIA)

Belgium 1-Tech (1_TECH)

Netherlands Stichting Tidal Testing Centre (TTC)

Stichting Energieonderzoek Centrum Nederland (ECNeth)

Germany Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V (Fh_IWES)

Gottfried Wilhelm Leibniz Universität Hannover (LUH)

Universitaet Stuttgart (USTUTT)

Portugal Wave Energy Centre – Centro de Energia das Ondas (WavEC)

Italy Università degli Studi di Firenze (UNIFI-CRIACIV)

Università degli Studi di Firenze (UNIFI-PIN)

Università degli Studi della Tuscia (UNI_TUS)

Consiglio Nazionale delle Ricerche (CNR-INSEAN)

Brazil Instituto de Pesquisas Tecnológicas do Estado de São Paulo S.A. (IPT)

Norway Sintef Energi AS (SINTEF)

Norges Teknisk-Naturvitenskapelige Universitet (NTNU)



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DOCUMENT INFORMATION Title STAGE 3 Sea testing of a novel floating tidal energy converter with double rotor at 1:10 scale.

Distribution Public

Document Reference MARINET-TA1-MAGALLANES@SEA

User-Group Leader, Lead Author

Francisco Javier Robredo Arana


+0034 986 408260

User-Group Members, Contributing Authors

Pablo Mansilla Salinero


Infrastructure Accessed:

EMEC Nursery Tidal Test Site

Infrastructure Manager (or Main Contact)

[Insert Infrastructure Manager name]

REVISION HISTORY

ev. Date Description Prepared by

(Name) Approved By Infrastructure

Manager

Status (Draft/Final

)

1



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ABOUT THIS REPORT One of the requirements of the EC in enabling a user group to benefit from free-of-charge access to

an infrastructure is that the user group must be entitled to disseminate the foreground (information and results) that they have generated under the project in order to progress the state-of-the-art of the sector. Notwithstanding this, the EC also state that dissemination activities shall be compatible with the protection of intellectual property rights, confidentiality obligations and the legitimate interests of the owner(s) of the foreground.

The aim of this report is therefore to meet the first requirement of publicly disseminating the knowledge generated through this MARINET infrastructure access project in an accessible format in order to:

• progress the state-of-the-art • publicise resulting progress made for the technology/industry • provide evidence of progress made along the Structured Development Plan • provide due diligence material for potential future investment and financing • share lessons learned • avoid potential future replication by others • provide opportunities for future collaboration • etc.

In some cases, the user group may wish to protect some of this information which they deem commercially sensitive, and so may choose to present results in a normalised (non-dimensional) format or withhold certain design data – this is acceptable and allowed for in the second requirement outlined above.

ACKNOWLEDGEMENT The work described in this publication has received support from MARINET, a European

Community - Research Infrastructure Action under the FP7 “Capacities” Specific Programme.

LEGAL DISCLAIMER The views expressed, and responsibility for the content of this publication, lie solely with the

authors. The European Commission is not liable for any use that may be made of the information contained herein. This work may rely on data from sources external to the MARINET project Consortium. Members of the Consortium do not accept liability for loss or damage suffered by any third party as a result of errors or inaccuracies in such data. The information in this document is provided “as is” and no guarantee or warranty is given that the information is fit for any particular purpose. The user thereof uses the information at its sole risk and neither the European Commission nor any member of the MARINET Consortium is liable for any use that may be made of the information.



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EXECUTIVE SUMMARY

Magallanes Renovables has tested its 1:10 scale platform (ATIR) in EMEC facilities at Orkney at the end of 2014 during 6 week. During this period the company tested all subsystems included in the platform under real open sea conditions learning how to work in real conditions. It was especially worthy the work and alliances done with local companies and the project planning and management, very useful for future stages of the project.

The figures recovered from this test will be very useful for the designing and manufacturing of the real scale platform that is expected to be finished by mid-2015. The electricity produced by the counter-rotating turbines and the good behavior of the platform, even in bad weather conditions, demonstrate the feasibility of the project. This fact, combined with the possibility to access to the inner part of the future platform to make maintenance allow us to be very reliable on the future of this project.



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CONTENTS

1 INTRODUCTION & BACKGROUND ......................... ............................................................................ 7

1.1 INTRODUCTION ............................................................................................................................... 7

1.2 DEVELOPMENT SO FAR .................................................................................................................. 7

1.2.1 Stage Gate Progress ................................................................................................................ 7

1.2.2 Plan For This Access ............................................................................................................... 9

2 OUTLINE OF WORK CARRIED OUT ....................... ............................................................................ 9

2.1 SETUP 9

2.1.1 Test Plan ................................................................................................................................ 14

2.2 RESULTS, ANALYSIS & CONCLUSIONS ........................................................................................... 14

3 MAIN LEARNING OUTCOMES ............................ .............................................................................. 16

3.1 PROGRESS MADE ......................................................................................................................... 16

3.1.1 Progress Made: For This User-Group or Technology ............................................................. 16

3.1.2 Progress Made: For Marine Renewable Energy Industry ....................................................... 16

3.2 KEY LESSONS LEARNED ............................................................................................................... 16

4 FURTHER INFORMATION ................................................................................................................. 17

4.1 SCIENTIFIC PUBLICATIONS ............................................................................................................ 17

4.2 WEBSITE & SOCIAL MEDIA ............................................................................................................ 17

5 REFERENCES .................................................................................................................................... 17

6 APPENDICES ..................................................................................................................................... 17

6.1 STAGE DEVELOPMENT SUMMARY TABLE ....................................................................................... 17

6.2 ANY OTHER APPENDICES ............................................................................................................. 19



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1 INTRODUCTION & BACKGROUND

1.1 INTRODUCTION The Magallanes Project started in 2007 and, since then, it has focused its activity on the

development of a floating platform and its different systems to harness the energy of tidal currents and convert it into electrical energy. Throughout these years, we have worked without a break in the development of the platform, which has led to the construction of a 1:10 scale platform.

This platform has been used to make several tests in Spain and now in Orkney which help us to understand its behaviour under real conditions.

1.2 DEVELOPMENT SO FAR

1.2.1 Stage Gate Progress Previously completed: �

Planned for this project: �

STAGE GATE CRITERIA Status

Stage 1 – Concept Validation

��Linear monochromatic waves to validate or calibrate numerical models of the system (25 – 100 waves)

�

��Finite monochromatic waves to include higher order effects (25 –100 waves) �

��Hull(s) sea worthiness in real seas (scaled duration at 3 hours) �

��Restricted degrees of freedom (DofF) if required by the early mathematical models �

��Provide the empirical hydrodynamic co-efficient associated with the device (for mathematical modelling tuning)

�

��Investigate physical process governing device response. May not be well defined theoretically or numerically solvable

�

��Real seaway productivity (scaled duration at 20-30 minutes) �

��Initially 2-D (flume) test programme �

��Short crested seas need only be run at this early stage if the devices anticipated performance would be significantly affected by them

�

��Evidence of the device seaworthiness �

��Initial indication of the full system load regimes �

Stage 2 – Design Validation

��Accurately simulated PTO characteristics �

��Performance in real seaways (long and short crested) �

��Survival loading and extreme motion behaviour. �

��Active damping control (may be deferred to Stage 3) �



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��Device design changes and modifications �

��Mooring arrangements and effects on motion �

��Data for proposed PTO design and bench testing (Stage 3) �

��Engineering Design (Prototype), feasibility and costing �

��Site Review for Stage 3 and Stage 4 deployments �

��Over topping rates �

Stage 3 – Sub-Systems Validation

��To investigate physical properties not well scaled & validate performance figures �

��To employ a realistic/actual PTO and generating system & develop control strategies �

��To qualify environmental factors (i.e. the device on the environment and vice versa) e.g. marine growth, corrosion, windage and current drag

�

��To validate electrical supply quality and power electronic requirements. �

��To quantify survival conditions, mooring behaviour and hull seaworthiness �

��Manufacturing, deployment, recovery and O&M (component reliability) �

��Project planning and management, including licensing, certification, insurance etc. �

Stage 4 – Solo Device Validation

��Hull seaworthiness and survival strategies �

��Mooring and cable connection issues, including failure modes �

��PTO performance and reliability �

��Component and assembly longevity �

��Electricity supply quality (absorbed/pneumatic power-converted/electrical power) �

��Application in local wave climate conditions �

��Project management, manufacturing, deployment, recovery, etc �

��Service, maintenance and operational experience [O&M] �

��Accepted EIA �

Stage 5 – Multi -Device Demonstration

��Economic Feasibility/Profitability �

��Multiple units performance �

��Device array interactions �

��Power supply interaction & quality �

��Environmental impact issues �

��Full technical and economic due diligence �



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��Compliance of all operations with existing legal requirements �

1.2.2 Plan For This Access In this access Magallanes seek to validate the platform subsystems in real conditions, especially the

electrical, control and communication subsystems.

It is also very important to recover information of the conditions in which the platform will be exposed. This data will be very useful for future stages of the project and will help us in the designing of the full scale platform. These environmental conditions will affect directly to the hulk and moorings so they will be tested too in Orkney under working conditions.

Finally it is expected to learn and improve our procedures of installation and decommissioning of the platform so we will work out on the project planning and management in Orkney which is different to the conditions in Spain.

2 OUTLINE OF WORK CARRIED OUT

2.1 SETUP

Transport

Installation

Open sea test

Moorings test

Decomissioning

Project planning and management

Study of results

Table 2.1 Sample table caption

The test took place on the EMEC facilities in Shapinshay sound where they have their scale tidal facilities.

The installation was done using to buoys, one on the front and another on the back where the chains were joined. From the buoy to the platform we used an elastic rope to make the connection easier. A scheme is attach to represent the complete mooring and the platform.



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Figure 1: Scheme of the platform on Shapinsay sound



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Figure 2: One of the anchors used form the mooring

Figure 3: Chains used for the mooring. 10m of heavy chain and 20m of light chain



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Figure 4: ATIR on the vessel ready to be installed



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Figure 5: Sailors connecting the platform to the mo oring

Figure 6: Platform correctly installed on the testi ng site



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2.1.1 Test Plan The tests took place between November 3rd and December 12nd of 2014 (6 weeks). The schedule of

this test was:

• Platform delivery to Orkney by boat. • Preparation of the platform for the sea tests. • Installation:

o Study the best way of installing the platform on site considering the available boats and personal team.

o Installation of the moorings and buoys. o Installation of the platform on site. o Adjust the communication system.

• Test on site. • Decommission of the platform. • Platform delivery to Spain by boat.

2.2 RESULTS, ANALYSIS & CONCLUSIONS

During the testing period, Magallanes made different type of test.

The first and more important one was to learn the kind of difficulties that the company will have in the future when the full scale platform was tested. We learned the problems, particularities of the Orkney environment and facilities, vessels and teams that we will have in the future to make the tests.

We worked with local supplier and authorities in the installation and maintenance of the platform and also studied the problems that may surge on the full scaled platform; some of them should be taken into account in the present designing stage in order to reduce cost in the operation stage.

We have also tested different procedures of communication between our floating platform and our control system and servers onshore where the data is analyzed and storage. Communications will become a problem due to the bad quality of the internet connections in the island so maybe we will have to develop another way to communicate with the floating platform and make them more efficient and reliable.

Then we tested all scaled system implemented in the platform as generation, control, ballast and mechanical system. We extract a lot of data that will be very useful for the next stage, the construction and implementation of the full scaled platform.

This test was also very useful to validate several control strategies for ballasting control and for power take off optimization in real sea conditions.

Here we attach some graphs that represent some measurements done in our generators and that show we could produce energy during the test.



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In the following graph is shown the movement of the platform, a very worthy data in order to understand the behaviour of the platform in real conditions and to validate the calculations done at the office during the simulation stage. A very shaking platform may produce future problems in electrical and mechanical components.



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We worked on a real situation and we could even work on the solving of some technical problem, situation that may also occur in the future what made this training very valuable and useful for Magallanes team.

3 MAIN LEARNING OUTCOMES

3.1 PROGRESS MADE

3.1.1 Progress Made: For This User-Group or Technol ogy All tests carried out where satisfactory. Nevertheless we have to improve our control system in order

to have more information about our device and solve some problems in the communication subsystem due to the hard conditions of the Northern Scotland.

We had to modify some procedures in the installation and decommissioning of the platform due to the sea conditions of Orkney, much more aggressive than the conditions in Spain where previous tests were done.

3.1.1.1 Next Steps for Research or Staged Developme nt Plan – Exit/Change & Retest/Proceed?

After testing our platform we will modify some subsystem and then proceed to manufacture the full scale platform due to the test showed that our design behaviour in open sea is as good as we expected.

3.1.2 Progress Made: For Marine Renewable Energy In dustry This was a very important stage in the project because help us to understand and not to

underestimate the hard conditions of the sea in Orkney.

Furthermore, we have got much information of the companies that work in the island and which is expected to collaborate with us in the future.

The information collected by our control system will be analyzed in our headquarters and we expect to take important information for the designing and manufacturing of the next prototype.

3.2 KEY LESSONS LEARNED • Work under real conditions and with the companies and teams in Orkney • Transport, deployment and decommission of our platform in open sea. • Test all subsystem under real conditions. • Project planning and management • Procedures to be done in EMEC to deploy a platform in their testing site.



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4 FURTHER INFORMATION

4.1 SCIENTIFIC PUBLICATIONS List of any scientific publications made (already or planned) as a result of this work:

•

4.2 WEBSITE & SOCIAL MEDIA Website: http://www.magallanesrenovables.com

Online Photographs Link: http://bit.ly/1w3IvvA

5 REFERENCES

6 APPENDICES

6.1 STAGE DEVELOPMENT SUMMARY TABLE The table following offers an overview of the test programmes recommended by IEA-OES for each

Technology Readiness Level. This is only offered as a guide and is in no way extensive of the full test programme that should be committed to at each TRL.



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6.2 ANY OTHER APPENDICES

user-project: magallanes@sea stage 3 sea …€¦ · ente vasco de la energía ... date desc...

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