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