Ocean Thermal Energy Conversion (OTEC) is a technology for generating renewable energy that uses the temperature differential between the deep cold and
| Previous PDF | Next PDF |
[PDF] Ocean Thermal Energy Conversion (OTEC)
To an engineer this implies that there are two enormous reservoirs providing the heat source and the heat sink required for a heat engine A practical application is
[PDF] Ocean Thermal Energy Technology Brief - International Renewable
» Process and Technology Status – Ocean Thermal Energy Conversion (OTEC) technologies use the temperature difference between warm seawater at the
[PDF] OCEAN THERMAL ENERGY CONVERSION (OTEC)
State of the Technology OTEC power systems operate as cyclic heat engines They receive thermal energy through heat transfer from surface sea water
[PDF] Ocean Thermal Energy Conversion: An Overview - NREL
an open-cycle ocean thermal energy convers ion system on WindlOcean Technologies Dtvtslon Figure 4 Mini~OTEC off Keabote Point Howatt (Courtesy of
[PDF] Ocean Thermal Energy Conversion (OTEC) Technology
Ocean Thermal Energy Conversion (OTEC) is a technology for generating renewable energy that uses the temperature differential between the deep cold and
[PDF] OCEAN THERMAL ENERGY CONVERSION AND THE PACIFIC
provide technical information on “New Energy Technologies”, in particular, hydrogen fuel, ocean thermal energy conversion (OTEC) and space solar power
[PDF] Ocean Thermal Energy Conversion - National Institute of Ocean
There are technological hurdles to overcome to tap the immense potential of OTEC But still the technology is mature enough to establish commercial power plants
[PDF] Ocean Thermal Energy Conversion (OTEC) - OAPEN
Because an OTEC plant is an extensive, expensive infrastructure to build for the benefit of everyone, the geographical adaptation of the technology is much more
[PDF] La tectonique des plaque !
[PDF] la tectonique des plaques
[PDF] La tectonique des plaques
[PDF] la tectonique des plaques 1ere s
[PDF] la tectonique des plaques 4eme
[PDF] la tectonique des plaques cours
[PDF] la tectonique des plaques cours pdf
[PDF] la tectonique des plaques l'histoire d'un modèle controle
[PDF] la tectonique des plaques svt 3eme pdf
[PDF] La tectonique des plaques SVT SVP AIDER MOI !
[PDF] La télé réalité humilie t-elle les candidats / La télévision est-elle un moyen de se cultiver
[PDF] la télécabine DM math
[PDF] la télémétrie laser et la lune exercice corrigé
[PDF] La télévision en couleur
Ocean Thermal Energy Conversion (OTEC)
Technology
Ocean Thermal Energy Conversion (OTEC) is a technology for generating renewable energy that uses thetemperature differential between the deep cold and relatively warmer surface waters of the ocean to generate baseload
electricity. The technology is viable primarily in equatorial areas of the earth where the year round temperature
continuously requires large volumes of both warm and cold water to generate electricity. A 100 megawatt (MW) OTEC
facility would likely require 10-20 billion of gallons of water per day. There are several types of OTEC systems; this
document describes the most likely initial commercial OTEC facility: an offshore, closed-cycle system.
Closed-Cycle OTEC Power System:
OTEC is a heat engine system with a heat
source (i.e., warm water) and a heat sink (e.g., cold water). The warm water passes through a heat exchanger (i.e., evaporator) which is in contact with a closed loop of working fluid (likely ammonia). The warm water evaporates the working fluid into a vapor which expands and drives a turbine. The turbine, connected to a generator, is the source of mechanical energy. The generator converts the mechanical energy into electrical energy. After the vaporized working fluid passes through the turbine and generator it enters another heat exchanger (i.e., condenser) which is in contact with the cold water. The vaporized working fluid is condensed back into a liquid which is then pumped back into the evaporator to complete the cycle. Both the cooled warm water and the warmed cold water are discharged into the ocean after they have passed through the heat exchangers. Figure 1 is a schematic of the closed-cycle system.Cold Water Pipe:
A unique feature of an OTEC facility is the
cold water pipe. The pipe must be able to withstand the rigors of the marine environment in order remain attached the OTEC platform. In order to obtain the temperature differential required forwithdraw cold water at a depth of approximately 3300 feet (1000 meters). To accommodate the large cold water flows,
the size of the pipe for a 100 MW facility may be approximately 33 feet (10 meters) in diameter. The construction,
deployment, and installation of the cold water pipe have remained an engineering challenge.Other System Features:
A surface platform is an integral part of the facility which is necessary to house the equipment required for the
OTEC system. A stationary OTEC platform would be held in place by mooring lines and anchors. An OTEC platform may
be visible from the shoreline. A power cable lying upon or beneath the ocean bottom would connect the electricity from
the off-shore facility to the electrical grid.Other OTEC Products
OTEC technology has the potential to be integrated with other commercial systems (e.g., aquaculture and sea
water air conditioning) and products (e.g., potable water, ammonia, and hydrogen).