21st
International Workshop on Water Waves and Floating Bodies, Loughborough, UK.
2nd-5th April 2006
RADICAL DESIGN OPTIONS FOR WAVE-PROFILING
WAVE ENERGY CONVERTERS
F.
J.
M.
Farley Maritime Energy Developments Ltd, 8 Ch de St
Pierre, 06620 Le Bar sur Loup, France fjmfarley@wanadoo.
fr
R.
C.
T.
Rainey WS Atkins Oil & Gas, Euston...
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21st International Workshop on Water Waves and Floating Bodies, Loughborough, UK. 2nd-5th April 2006 RADICAL DESIGN OPTIONS FOR WAVE-PROFILING WAVE ENERGY CONVERTERS F. J. M. Farley Maritime Energy Developments Ltd, 8 Ch de St Pierre, 06620 Le Bar sur Loup, France fjmfarley@wanadoo. fr R. C. T. Rainey WS Atkins Oil & Gas, Euston Tower, London NW1 3AT, U. K. rod. rainey@atkinsglobal. com SUMMARY Wave-profiling wave energy converters, typically in the form of a long articulated raft lying perpendicular to the wave crests, are one of the oldest concepts in this field, yet still one of the most promising. This paper considers two radical design options. Both depart from existing technology, but may offer attractive economics in the long term. The first is a development of the first author’s “buckling raft”, tested at model scale 25 years ago (Farley 1982). It addresses the survivability and cost issues in the light of modern developments in offshore engineering. It is a radical de
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7th European Wave and Tidal Energy Conference
Porto, Portugal, 11-13 September 2007
By António F.
O.
Falcão, Instituto Superior Técnico, Portugal
These conferences started in Edinburgh in 1993 and have been taking place
every two years in different European countries.
"Tidal" was added to the title
at the time of the 6th...
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7th European Wave and Tidal Energy Conference Porto, Portugal, 11-13 September 2007 By António F. O. Falcão, Instituto Superior Técnico, Portugal These conferences started in Edinburgh in 1993 and have been taking place every two years in different European countries. "Tidal" was added to the title at the time of the 6th conference held in Glasgow in 2005. The conference was attended by about 350 participants, 86% of whom were from Europe. Taking into account that wave and tidal are not mature technologies (in the most advanced cases, they are at the demonstration or pre-commercial stages), the percentage of participants from companies was remarkably high (65%) as compared with those from universities (29%) and other institutions (6%). The conference banquet took place appropriately in the wine cellars of one of the oldest Port wine companies. 103 papers were selected for presentation and publication in the proceedings, after peer review of the full-length paper. For the first
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Renewable Energy:
Priorities and Objectives for Cyprus
Solon Kassinis
Director of the Energy Service
Ministry of Commerce, Industry & Tourism
Republic of Cyprus
British High Commission
The Use of Low Carbon Technologies & Renewable
Energy in the Supply of Water
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*Policy Report, IEA-OES, 2006 +IEA Statistics for 2004
FORM OF OCEAN ENERGY ESTIMATED GLOBAL RESOURCES*
(TWH/YEAR)
PRESENT GLOBAL ELECTRICITY
PRODUCTION (TWH/YEAR)+
Tides
Waves
Tidal (Marine) Current
Thermal Gradient
Salinity Gradient
300+
80 000
800+
10 000
2 000
17 400
INTERNATIONAL ENERGY AGENCY | IMPLEMENTING AGREEMENT ON OCEAN...
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*Policy Report, IEA-OES, 2006 +IEA Statistics for 2004 FORM OF OCEAN ENERGY ESTIMATED GLOBAL RESOURCES* (TWH/YEAR) PRESENT GLOBAL ELECTRICITY PRODUCTION (TWH/YEAR)+ Tides Waves Tidal (Marine) Current Thermal Gradient Salinity Gradient 300+ 80 000 800+ 10 000 2 000 17 400 INTERNATIONAL ENERGY AGENCY | IMPLEMENTING AGREEMENT ON OCEAN ENERGY SYSTEMS OCEAN ENERGY OPPORTUNITY, PRESENT STATUS AND CHALLENGES GLOBAL RESOURCE Available global Ocean Energy resource is in the same order of magnitude of the present electricity production worldwide. Five basic forms for Ocean Energy can be harvested to generate electricity and fresh water by various means. EXAMPLES OF SELECTIVE CONVERSION TECHNOLOGIES & DEMONSTRATION PROJECTS WORLD-WIDE OE Buoy Floating OWC system Sea testing in Galway Bay Test Site, Ireland (Ocean Energy Ltd, Ireland) Pelamis Floating, articulated device Assembling of the first offshore wave farm off Northern Portugal (Ocean Power Delivery, UK) Wave Dragon Slack-moored overtoppi
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Unseasonably calm water in the Shannon Estuary on the west coast of
Ireland made for a relatively easy launch of the 40 metre long prototype
McCabe Wave Pump earlier this summer.
Engineers are making the most of
the summer preparing the device for full commissioning in more typical
Irish conditions, expected for early September, and a...
Mais
Unseasonably calm water in the Shannon Estuary on the west coast of Ireland made for a relatively easy launch of the 40 metre long prototype McCabe Wave Pump earlier this summer. Engineers are making the most of the summer preparing the device for full commissioning in more typical Irish conditions, expected for early September, and a 6 month long series of testing and measurement. The McCabe Wave Pump is a slack-moored floating system that extracts energy from ocean swells and is specifically designed for the conversion of seawater to drinking water. The device consists of three steel pontoons hinged together, with a hydraulic power take-off between the centre pontoon and the two outside pontoons. The centre pontoon is stabilised, while the outside pontoons move with the ocean swell. The motion of the outside pontoons forces the centre barge’s high-pressure hydraulic pumps which will eventually drive salt water through an on-board pre-filtering and desalination system. Dr. Pete
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Implementing Agreement on Ocean Energy Systems
International Energy Agency
OOCCEEAANN EENNEERRGGYY:: GGLLOOBBAALL TTEECCHHNNOOLLOOGGYY
DDEEVVEELLOOPPMMEENNTT SSTTAATTUUSS
MMaarrcchh 22000099
A report prepared by Powertech Labs Inc.
for the IEA-OES under
ANNEX I - Review, Exchange and Dissemination
of Information on Ocean Energy...
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Implementing Agreement on Ocean Energy Systems International Energy Agency OOCCEEAANN EENNEERRGGYY:: GGLLOOBBAALL TTEECCHHNNOOLLOOGGYY DDEEVVEELLOOPPMMEENNTT SSTTAATTUUSS MMaarrcchh 22000099 A report prepared by Powertech Labs Inc. for the IEA-OES under ANNEX I - Review, Exchange and Dissemination of Information on Ocean Energy Systems IEA-OES Document No. : T0104
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CEODOURO Project - Implementation of a breakwater
integrated OWC power plant in Oporto, Portugal
By João Maciel, EDP Inovação, Portugal
The main objective of the CEODOURO Project is to demonstrate the viability
of the breakwater integrated OWC (Oscillating Water Column) technology.
The demonstration will be implemented in a...
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CEODOURO Project - Implementation of a breakwater integrated OWC power plant in Oporto, Portugal By João Maciel, EDP Inovação, Portugal The main objective of the CEODOURO Project is to demonstrate the viability of the breakwater integrated OWC (Oscillating Water Column) technology. The demonstration will be implemented in a vertical-wall breakwater at the mouth of Douro River (Oporto, Portugal). The plant will consist of two large chambers equipped with three (2+1) equal turbines, resulting in 750 kW of installed capacity. Building up on the previous OWC coastal experiences namely at the Pico plant in Azores Island and Limpet in Islay Island (Scotland) the team engaged in this project is working on this nearshore breakwater integrated OWC technology mainly due to the significant cost reductions - with an obvious impact in the economics - this solution envisages. The project has applied for EU funding putting together a consortium composed by five companies (EDP Innovation / Labelec
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(600MW)
(300MW)
NORWAY
SWEDEN
FINLAND
RUSS
ESTONIA
LATVIA
LITHUANIA
BELARUS
POLAND
SLOVAKIA
HUNGARY
MOLDAVI
AUSTRIA
SLOVENIA
SWITZERLAND
GERMANY
FRANCE
BELGIUM
LUX
NETHERLANDS
UNITED
KINGDOM
IRELAND
DENMARK
CZECH REPUBLIC
Føroyar
(Denmark)
RUSSIA
Shetland
Islands
LIE.
Bornholm
(DK)
EnBWEnBWEnBW
Three Overlapping ApplicationsThree...
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(600MW) (300MW) NORWAY SWEDEN FINLAND RUSS ESTONIA LATVIA LITHUANIA BELARUS POLAND SLOVAKIA HUNGARY MOLDAVI AUSTRIA SLOVENIA SWITZERLAND GERMANY FRANCE BELGIUM LUX NETHERLANDS UNITED KINGDOM IRELAND DENMARK CZECH REPUBLIC Føroyar (Denmark) RUSSIA Shetland Islands LIE. Bornholm (DK) EnBWEnBWEnBW Three Overlapping ApplicationsThree Overlapping ApplicationsThree Overlapping Applications 1. Aldergrund GAP (186 MW, 31)1. Aldergrund GAP (186 MW, 31)1. Aldergrund GAP (186 MW, 31) BEC- Energie Consult GmbhBEC- Energie Consult GmbhBEC- Energie Consult Gmbh 2. Aldergrund 500 (186 MW, 31)2. Aldergrund 500 (186 MW, 31)2. Aldergrund 500 (186 MW, 31) Aldergrund 500 GmbHAldergrund 500 GmbHAldergrund 500 GmbH 3. Arcadis Ost II3. Arcadis Ost II3. Arcadis Ost II Arkonia See Sud (80 MW)Arkonia See Sud (80 MW)Arkonia See Sud (80 MW) Arkonia See Sud GmbhArkonia See Sud GmbhArkonia See Sud Gmbh Arcadis Ost 1 (350MW,70)Arcadis Ost 1 (350MW,70)Arcadis Ost 1 (350MW,70) Arcadis Consult GmbHArcadis Con
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An IEA OPEN Energy Technology Bulletin1
Article
Issue No.
52, July 2008
Harnessing the Power of the Oceans
by
Gouri S.
Bhuyan,
Executive Committee Chair,
IEA Implementing Agreement on Ocean Energy Systems
Exploiting the energy of the oceans has for long attracted the talents of innovators.
Today, concrete efforts are mobilising...
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An IEA OPEN Energy Technology Bulletin1 Article Issue No. 52, July 2008 Harnessing the Power of the Oceans by Gouri S. Bhuyan, Executive Committee Chair, IEA Implementing Agreement on Ocean Energy Systems Exploiting the energy of the oceans has for long attracted the talents of innovators. Today, concrete efforts are mobilising numerous technologies to exploit the world’s vast ocean energy resources. The role of these technologies is set to grow steadily in the drive for reliable, cost-competitive and environmentally sound energy. The IEA Implementing Agreement on Ocean Energy Systems (IEA-OES) brings together a fast growing number of stakeholder countries to facilitate and co-ordinate ocean energy research, development, demonstration and wider market deployment. Force and diversity The oceans hold energy in numerous ways, so it is not surprising that many conversion technologies exist to exploit that energy. Broadly speaking, ocean renewable energy resources fall into five categ
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The steel construction work of the 261 tonnes prototype Wave Dragon is now
completed and it will be deployed in the end of February 2003 when instrumentation is completed.
During the next 3 years a development consortium will perform long term
and real sea tests on hydraulic behaviour, turbine strategy and power production to the...
Mais
The steel construction work of the 261 tonnes prototype Wave Dragon is now completed and it will be deployed in the end of February 2003 when instrumentation is completed. During the next 3 years a development consortium will perform long term and real sea tests on hydraulic behaviour, turbine strategy and power production to the grid. The 4. 35 mill. euros project has been secured through substantial grants from the Danish Energy Authority (1. 7 mill. euros), EU (1. 5 mill. euros) and from the Danish system operator Elkraft System’s RTD fund (0. 25 mill. euros). The Wave Dragon is a slack moored device of the overtopping type, consisting of two wave reflectors focusing the waves towards the ramp, where water overtops into a reservoir. The pressure height in the reservoir is converted into power through a number of variable speed axial turbines. During the last three years the Wave Dragon has been subject to a number of test and development activities activities, including the
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