1 challenge the future ocean energy – tidal energy antonio jarquin-laguna28-04-2015 challenge the...
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1Challenge the future
Ocean Energy – Tidal Energy
Antonio Jarquin-Laguna 28-04-2015
Challenge the future
2Challenge the future
• Tidal Range (tidal rise and fall)derived from the gravitational forces of the Earth-Moon-Sun system;
• Tidal Currentswater flow resulting from the filling and emptying of coastal regions as a result of the tidal rise and fall
Context
Oosterschelde, Den Oever,
Marsdiep,……
Grevelingen, ……
Afsluitdijk, ……
Water power plants or Hydro power stations (Dutch: Waterkracht centrales)
1High-head
2Reservoir
3Run-of-river
4Osmosis-pressure
5Osmosis-elec.curr.
6Tidal-barrage
7Tidal-stream
8Waves
9PSP’s
10OTEC
stream // river estuary // sea // ocean
km
Q
Types of Plant =
H
Ad
van
derT
oorn
Ver
sie
20-3
-201
5
Q
H
New developments
Maas, Lek, Vecht, …
Plan Lievense, OPEC, ALPCAES,
…..…
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150 TWh/year or 90 GW of generating capacity 20 billion EUR electricity sales
Global potential of tidal currents
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Current status
• ~7MW installed capacity globally
• 20- 130 MW tidal energy potential in the NL
• Need for pre-commercial projects and first farm arrays
Tidal companies in the world2014 JRC Ocean Energy Status Report
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Current technologies
Horizontal Axis turbine
Horizontal Axis turbine
Ducted turbine
Oscillating hydrofoil
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Some full-scale demonstration projects
Operational projects in the UKOcean Energy Systems- Annual Report
2014
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• Wave and current resource• Impact of turbulence?• Wave-current interaction?
• Devices and technology• Water-to-wire numerical models• Performance validation• Moorings and foundations
• Deployment and operations• How to increase the reliability?• New offshore materials• Farm array aspects
• Environmental impact
Main R&D challenges
10Challenge the future
• The World’s first Tidal Array Scheme7 MW tidal array project in the Pentland Firth in Scotland.
• The Swansea Bay Lagoon 320 MW tidal lagoon project in Swansea Bay, UK
• Dutch Tidal Test Center in den Oever High tidal flow site fro intermediate scale testing
Some future prospects
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Role of the TUDelft
• High expertise from researchers with a connection to Ocean Energy
• Opportunity for new research projects and new ideas
• Education
TechnologyAE,CiTG,EWI,3ME
ResourceCiTG
Deployment and operation
CiTG, TPM
EnvironmentalCiTG
Policy and economics
TPM
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Wave energy
Tidal currents
Thermal energy
Salinity gradient
Ocean currents
MaterialOffshore
Ocean Energy disciplines
Process &Energy
Electrical systems
Environmental & societal
many cross-over between TUD faculties
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* Source: IPCC-SRREN, 2012
Thermal energy
% of global electricity consumption* Capacity factor
200% 80 - 100%
Ocean Energy
Wave energy
Tidal current
Salinity gradient
Ocean currents
14%
15 - 30%
15 - 30%
6%
25 - 40%
26 - 40%
80 - 100%
80 - 100%
17Challenge the future
* Source: Ecofys, 2014
Wave energy
Tidal currents
Thermal energy
Salinity gradient
Ocean currents
Concept R&D
Ocean Energy
Pilot Demonstration Comm.
Position Dutch sector leaders
Position International sector leaders
Status of development
Hydropower in the Netherlands
• What are promising types of plants?• Generating energy by means of hydropower.• Large scale storage of energy
Ad van der Toorn28 April 2015
Pump Storage Plants (PSP) in the Netherlands
Ad van der Toorn, 12-1-2015
P
G
P P
G
PP
Pressure Cavernsin salt domes
Bath tub or “Valmeer”(rev. Lievense & KEMA)
Gravity PowerShaft or Tower
Relative small heads
& big volumes
so lots of turbines
Relative high heads
&small volumes
so less turbines
Underground PSPin old coal mines
P
P