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24 Οκτ 2013 (πριν από 3 χρόνια και 7 μήνες)

66 εμφανίσεις

Company/Organization
-

Electricite

de France (EDF)

Technology/Plant Name
-

La
Rance

Barrage

Technology Genre
-

Tidal Barrage

Power take
-
off system
-

Bulb Turbine


The EDF Group's strategy is meeting these challenges by developing competitive and
low carbon emitting energy solutions. Building a sustainable energy future requires
considerable efforts and investment:


fostering “
decarbonised
” electricity generation by developing low
-
carbon technologies,


promoting demand
-
side management and developing environmentally friendly end
uses,


ensuring the competitiveness of the solutions that are chosen, to maintain employment
and households' purchasing power,


investing in R&D to prepare for the energy of the future,


exploit the opportunities connected with the latest technologies,


help with the development of CO2 capture, transportation and storage technologies,


seek out major hydroelectric infrastructure projects within a local sustainable
development policy.


La
Rance

Tidal Barrage was built in the 1960's near St.
Malo

in France. A dam 330
metres

long was build in front of a 22 square kilometer basin. The tidal range (the difference
between high and low tides) averages 8
metres

and reach up to 13.5
metres
. The plant
consists of 24 bulb type turbine generators 5.35
metres

in diameter, 470
tonnes

in weight,
and rated at 10MW each which generate electricity whether the tide is going in or out
(developed by
lectricité

de France). This peak of 240MW of power is sufficient to power
4% of the homes in Brittany
-

equivalent to the consumption of a town the size of Rennes.
The average power generated is 68MW for an annual output of around 600 million kWh
units of electricity. In November 1996 the La
Rance

tidal power plant celebrated 30 years
of active service during which time 16 billion kWh of electricity were generated without
major incident or mechanical breakdown. The initial capital cost of the power plant (620
million Francs) has long since been recovered, and the cost of electricity production is now
below 0.02 Euro per kWh.


Company/Organization
-

Pole
Mer

Bretagne

Technology/Plant Name
-

Marenergie

Technology Genre
-

Horizontal Axis Turbine
-

Ducted

Power take
-
off system


Unspecified





Use the force of tidal currents to generate electricity, is the idea of
​​
society
Hydrohelix

who
gathered around the project MARENERGIE / SABELLA, eight companies and research
centers. The partners are developing the offshore installation of a first turbine of 200 kW:
a large diameter turbine, coupled to an electric generator that will transform the kinetic
energy of tidal currents into electrical energy sent by cable to the coast. After a test period,
a 1 MW module production consists of five turbines will be connected to the network.

The use of tidal, astronomical origin, predictable power and not subject to the vagaries of
weather, is one of the answers to the reduction of fossil fuels, diversification of sources,
and use of renewable energy and not generating greenhouse gases





Company/Organization
-

Fluid

Mechanics

Laboratory

-

colede

Nantes


Technology/Plant Name
-

Searev


Technology Genre
-

Absorber
-

Point


Power take
-
off system


Unspecified



SEAREV,
Ecole

Centrale

de Nantes, France


The SEAREV is a wave
-
absorbing buoy similar in design to the PS Frog. The buoy
oscillates with the waves, and its oscillations relative to a large internal mass are used to
generate power. The exact power take
-
off mechanism is unclear, but it may involve the
use of hydraulics. A series of mathematical simulations were used to refine the shape of
the buoy, and the simulations indicated that the use of a latched control system (that
would lock the mass in place during certain points of the wave cycle) would provide
improved performance. The final form of the buoy is mushroom
-
like, with a cylindrical
internal mass located in the lower section. It is unclear whether any scale model testing
of the buoy design has taken place.

Made By




Sachin



IX
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B


Rajiv


IX
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B


Amandeep



IX
-
B


Ganesh



IX
-
B


Prashant



IX
-
B


Benson
-

IX
-
B


Jyoti



IX
-
B


Manjot



IX
-
B


Surbhi



IX
-
B


Arzoo



IX
-
B