Otec uses the heat differences between deep and shallow ocean waters to evaporate a fluid to run a steam turbine and generate electricity. Ocean thermal energy conversion otec is considered as a promising resource of energy in the future. Ocean thermal energy conversion otec uses the temperature difference between cooler deep and warmer shallow or surface seawaters to run a heat engine and produce useful work, usually in the form of electricity. Wave energy conversion and ocean thermal energy conversion potential in developing member countries wave energy conversion wec and ocean thermal energy conversion otec are two potentially significant sources of renewable energy that are available to help the asian development banks adb. Renewable, clean and reliable power for energy needs of today and tomorrow. The version of hycom used for these forecasts is the global, 112 latitudelongitude grid ew. Ocean thermal energy conversion development update. In order to produce power with the low temperature range, a working fluid with low boiling point is used. Ocean thermal energy conversion 3 thermodynamic efficiency a heat engine gives greater efficiency when run with a large temperature difference. Ocean thermal energy conversion otec technology development is currently in the gap. The governor of hawaii, david ige, flipped the switch to activate the plant. Island nations in the developing world are especially well placed to benefit from technology that exploits a new potential source of energy from sea water.
Opencycle ocean thermal energy conversion otec research. Nonconventional sources of energy are turning out to be extremely important sources of energy for mankind. With increases in energy prices and technical innovations over the last few years, otec systems, such the one produced by the ocean thermal energy corporation, are becoming viable technological solutions to help provide some of the worlds energy requirements. Cost effective otec ocean thermal energy conversion. The otec process absorbs thermal energy from warm surface seawater found throughout the tropical oceans and ejects a slightly smaller. Ocean thermal energy conversion karen anne finney university of guelph, guelph, ontario, n1g 2w1, canada ocean thermal energy conversion otec is a process that employs the natural temperature difference between the surface and the depths of the ocean. Ocean thermal energy conversion otec uses the ocean thermal gradient between cooler. Ocean thermal energy, ask latest information, ocean thermal energy abstract,ocean thermal energy report,ocean thermal energy presentation pdf,doc,ppt,ocean thermal energy technology discussion,ocean thermal energy paper presentation details,ocean thermal energy, ppt, pdf, report, presentation, source code, abstract, seminar, project idea, seminar topics, project, project topics,latest. Ocean thermal energy conversion otec technolo gy has been proposed as a solu %ion for clean, renewable alterna %ive energy. Makais otec work is conducted at the ocean energy research center oerc, located within the natural energy lab of hawaii authority nelha in kailua kona, hawaii. Sep 20, 2012 the ocean thermal energy conversion act of 1980, on august 3, 1980. Exporting japanese ocean thermal energy conversion. The stored thermal energy is completely renewable so that ocean thermal energy use will not reduced the stored energy quantity.
Ocean thermal energy conversion otec, form of energy conversion that makes use of the temperature differential between the warm surface waters of the oceans, heated by solar radiation, and the deeper cold waters to generate power in a conventional heat engine. Oceans account for more than 70% of the earths surface and are the worlds largest collector of solar energy. With global warming a certainty, it is imperative that we turn to nonpolluting and renewable sources of energy. Assessment of economic potential of ocean thermal energy conversion in indonesia. Ocean thermal energy conversion otec uses the ocean thermal gradient between cooler deep and warmer shallow or surface seawaters to run a heat engine and produce useful work, usually in the form of electricity. Ocean thermal energy conversion otec types renewable energy. Ocean thermal energy conversion otec technology uses a turbine generator to create renewable energy from the temperature difference between cold, deep seawater circulating in the ocean and surface seawater warmed by the sun. Ocean thermal energy conversion otec projects have been around since the 1970s. Otec is applicable to most parts of the worlds deep oceans between 20 o north. Ocean thermal energy conversion otec is an energy technology that makes use of the oceans temperature difference between the warm surface water and the cold deeper water to drive a turbine connected to a generator to produce electricity. It is used to increase the entropy of the surroundings. Thermoelectric generation has become the preferred method for producing electric power where reliability and maintenancefree operation are essential. Simply stated, this energy conversion goes against nature and nature imposes a tax on it. The heat stored in the ocean can be converted into electricity by means of a process called.
Ocean thermal energy conversion otec by ajer issuu. To proceed beyond experimental plants and towards commercialization in developed nations, a scaled version of a 100 mw plant must be designed and operated. The united states is developing four oceanenergy technologies which offer significant promise. The most developed conversion systems refer to tidal energy, thermal energy otec, marine currents and waves. Otec an attractive energy solution renewable energy a catalyst for economic growth wind, solar, geothermal, biomass, hydropower no single technology provides an ideal solution. Ocean thermal energy conversion otec, which uses the oceans. Over the past few decades, the art and science of thermoelectric energy con version has gradually evolved to a high level of performance. What links here related changes upload file special pages permanent link page information wikidata. Pdf the ocean thermal energy conversion strategies and. The oceans collect a huge amount of the worlds heat energy. Download the seminar report for ocean thermal energy. The technical evaluation of nonelectrical carriers lead, for example, to the consideration of hydrogen produced using electricity and desalinated water generated with otec technology. Exporting japanese ocean thermal energy conversion technology.
An assessment of the performance and potential of otec innovation. The concept of otec was first proposed by french physicist in 1881. Ocean thermal energy conversion otec is a baseload renewable energy source that uses the temperature difference between the warm surface ocean water and the cold deep ocean water to generate electricity. Welcome to presentation on seminar topicwelcome to presentation on seminar topic ocean thermal energy conversionocean thermal energy conversion otecotec govt. Wave energy conversion and ocean thermal energy conversion potential in developing member countries wave energy conversion wec and ocean thermal energy conversion otec are two potentially significant sources of renewable energy that are available to. A precommercial plant, representing a scaled version of the 50 to 100 mw plants, must be.
Pdf geoocean thermal energy conversion geotec power. In depth study about ocean thermal energy conversion systems. Final environmental impact statement for commercial ocean thermal energy conversion otec licensing pdf. Wave energy conversion and ocean thermal energy conversion. Closed cycle ocean thermal energy conversion otec december 15, 2009 leave a comment go to comments darsonvals original concept used a working fluid with a low boiling point, such as ammonia, which is vaporized using the heat extracted from the warm surface water. Mission facilitate development and commercialization of wave power wp devices and ocean thermal energy conversion otec systems 3.
Ocean thermal energy conversion technology britannica. Ocean thermal energy otec ocean thermal energy also called as ocean thermal energy conversion otec refers to a method of using the temperature difference between the deep parts of the sea which are cold and the shallow parts of the sea which are cold to run a heat engine and produce useful work. This situation justifies reevaluating otec for the production of electricity, desalinated water and energy intensive products. Dynamic simulation of system performance change by pid. Aside from closedcycle otec, there are also opencycle versions, in which the. Assessment of economic potential of ocean thermal energy. Following the design, the lockheed martin team went on to build miniotec, a. Apr 11, 2015 ocean thermal energy conversion systems 1. The solar energy that is received by the oceans is mainly absorbed and converted into heat, due to the low. It is one of the renewable energy resources that do. Ocean thermal energy conversion otec, which uses the oceans natural o bem amado dias gomes pdf temperature gradient to drive a turbine connected. Ocean thermal energy conversion otec is a promising renewable energy technology to generate electricity and has other applications such as production of freshwater, seawater airconditioning, marine culture and chilledsoil agriculture. Ocean thermal energy conversion otec is a process that can produce electricity by using the temperature difference between deep cold ocean water and warm tropical surface waters.
Ocean thermal energy conversion systems slideshare. Ocean thermal energy conversion is a process using the heat energy that is stored in the ocean. In the oceans the temperature difference between surface and deep water is greatest in the tropics, although still a modest 20 to 25 c. Otec can operate with a very high capacity factor and so can operate in base load mode. How will ocean thermal energy conversion help the environment. This barcode number lets you verify that youre getting exactly the right version or edition of a book. Aug 21, 2015 ocean thermal energy conversion otec is a process that can produce electricity by using the temperature difference between deep cold ocean water and warm tropical surface waters. Process and technology status ocean thermal energy conversion.
Parsons august 1984 to be presented at the asme winter meeting new orleans, louisiana 9 14 december 1984 prepared under task no. Pichtr honolulu, hi abstract the vertical temperature distribution in the open ocean can be simplistically described as consisting of two layers separated by an interface. A new era in the technology of ocean thermal energy conversion otec, which is a system of converting thermal energy in ocean into electricity, has come now. Ocean thermal energy conversion power plantocean thermal. One such source of energy is ocean thermal energy conversionotec. Energy conversion takahashi, patrick, trenka, andrew on. The sun shines on the oceans of the world and in the hot parts near the water at the seas surface can be quite warm, sometimes as high as 30c. An ocean thermal energy conversion power plant built by makai ocean engineering went operational in hawaii in august 2015. Ocean thermal energy conversion simple english wikipedia. Ocean thermal energy conversion act oteca of 1980 limits the ownership, construction and operation of offshore ocean thermal energy facilities and plantships to those licensed by the national oceanic and atmospheric administration noaa. Exporting japanese ocean thermal energy conversion technology to asia owing to the fact that japan is surrounded by ocean on all sides it has been carrying out research and development on ocean thermal energy conversion, which uses the temperature differences in the warm ocean water at the oceans surface and the cold ocean water in the ocean. The technology uses sea water from the ocean depths to generate.
Otec energy could be transported via chemical, thermal, and electrochemical carriers. Apr 07, 2020 ocean thermal energy conversion otec technology uses a turbine generator to create renewable energy from the temperature difference between cold, deep seawater circulating in the ocean and surface seawater warmed by the sun. A marine renewable energy production system for tropical areas ocean thermal energy conversion unlimited ocean thermal. Ocean thermal energy conversion otec is the process of deriving energy from the difference in temperature between surface and deep waters in the tropical oceans. The major funding emphasis has been in otec because of its potential, state of development, and availability of the resource to u. It relies on the oceans thermal gradient the temperature decline from the sunwarmed waters on the surface to the cold waters found at great depths. Ocean thermal energy conversion otec is a way of getting useful energy from the worlds oceans.
Electric heater electricity thermal energy hair drier electricity thermal energy electric generator mechanical energy electricity. Biofoulingbiof ouling is the result of certain marine organisms attaching themselves to submerged objects, biofouling may be detrimental to the system in a number of. Pdf s due to the worlds heavy dependence on fossil fuels for electricity, pollution and global warming is on the rise. Ocean thermal energy conversion renewable energy caribbean. Ocean thermal energy conversion otec technology generates.
Apr 23, 2018 island nations in the developing world are especially well placed to benefit from technology that exploits a new potential source of energy from sea water. Concept design of a 1 mw floating ocean thermal energy conversion otec in korea. The stored thermal energy is completely renewable so that ocean thermal energy use. Ocean thermal energy conversion, or otec, uses seawater to turn solar energy into electricity. View ocean thermal energy conversion research papers on academia. Since then, although many scientists have made earnest effort to materialization, otec has never. Aug 27, 2015 hawaii became the first state in the us to generate electricity from the thermal energy stored in ocean water using a new 105kilowatt ocean thermal energy conversion otec plant on big island. Hawaii became the first state in the us to generate electricity from the thermal energy stored in ocean water using a new 105kilowatt ocean thermal energy conversion otec plant. A new rankine power cycle utilising a combination of ocean thermal energy and geothermal waste energy is proposed and thus called a geotec geoocean thermal energy conversion power cycleplant. This is the first true closedcycle ocean thermal energy conversion otec plant to be connected to a u. First introduced in 1881, otec has been described as an effective and renewable energy source.
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