The advantages of using alternative energies


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Alternative Energy From The Ocean

Ocean Thermal Energy Conversion (OTEC)the ocean is turned into a low-pressure
was conceived of by the French engineervapor under the constraint of a vacuum.
Jacques D'Arsonval in 1881. However, atThe low-pressure vapor is released in a
the time of this writing the Naturalfocused area and it has the power to
Energy Laboratory of Hawaii is home todrive the turbine. To cool down the
the only operating experimental OTECvapor and create desalinated water for
plant on the face of the earth. OTEC ishuman consumption, the deeper ocean's
a potential alternative energy sourcecold waters are added to the vapor after
that needs to be funded and exploredit has generated sufficient electricity.
much more than it presently is.Hybrid Cycle OTEC is really just a
The great hurdle to get over with OTECtheory for the time being. It seeks to
implementation on a wide and practicallydescribe the way that we could make
useful level is cost. It is difficult tomaximum usage of the thermal energy of
get the costs down to a reasonable levelthe ocean's waters. There are actually
because of the processes presentlytwo sub-theories to the theory of Hybrid
utilized to drive OTEC. Ocean thermalCycling. The first involves using a
energy would be very clean burning andclosed cycling to generate electricity.
not add pollutants into the air.This electricity is in turn used to
However, as it presently would need tocreate the vacuum environment needed for
be set up with our current technologies,open cycling. The second component is
OTEC plants would have the capacity forthe integration of two open cyclings
disrupting and perhaps damaging thesuch that twice the amount of
local environment.desalinated, potable water is created
There are three kinds of OTEC.than with just one open cycle.
Closed Cycle OTEC uses a low-boilingIn addition to being used for producing
point liquid such as, for example,electricity, a closed cycle OTEC plant
propane to act as an intermediate fluid.can be utilized for treating chemicals.
The OTEC plant pumps the warm sea waterOTEC plants, both open cycling and close
into the reaction chamber and boils thecycling kinds, are also able to be
intermediate fluid. This results in theutilized for pumping up cold deep sea
intermediate fluid's vapor pushing thewater which can then be used for
turbine of the engine, which thusrefrigeration and air conditioning.
generates electricity. The vapor is thenFurthermore, during the moderation
cooled down by putting in cold seaperiod when the sea water is surrounding
water.the plant, the enclosed are can be used
Open Cycle OTEC is not that differentfor mariculture and aquaculture projects
from closed cycling, except in the Opensuch as fish farming. There is clearly
Cycle there is no intermediate fluid.quite an array of products and services
The sea water itself is the driver ofthat we could derive from this
the turbine engine in this OTEC format.alternative energy source.
Warm sea water found on the surface of



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