Kulkarni department of mechanical engineering 201617. As of today, the philippine stands as the south east asias first and largest potential wind energy producer. Otec utilizes the difference in temperature between warm, surface seawater and cold, deep seawater to produce electricity. View ocean thermal energy conversion research papers on academia. Otec energy could be transported via chemical, thermal, and electrochemical carriers. The difference in temperature between the surface and the lower water layer can be as large as 50. And getting a right seminar for submission is really a tough task. Otc 21016 economics of ocean thermal energy conversion. 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.
The governor of hawaii, david ige, flipped the switch to activate the plant. The stored thermal energy in the top meter depth is more than two years of delivered solar energy, at 100 % conversion efficiency, the stored energy is sufficient for 10,000 years of human use. Seminar report on ocean thermal energy conversion presented by anik samaddar roll no. Technical readiness of ocean thermal energy conversion. This means that every day, the oceans on our planet absorb solar energy equivalent to 250 billion barrels of oil, and if we could convert 0. What is otec ocean thermal energy conversion otec is a marine renewable energy technology that harnesses the solar energy absorbed by the oceans to generate electric power. Apr 11, 2015 ocean thermal energy conversion systems 1. Heat extraction from coldwater sink to condense the working fluid in the condenser. Otec systems must be designed with regard to potential efficiency issues. Oceans act as incredibly large solar energy collectors, absorbing about 80% of the suns energy. At one point, we all have to make ppt of any topic and submit its report. Otc 21016 economics of ocean thermal energy conversion otec.
Welcome to presentation on seminar topicwelcome to presentation on seminar topic ocean thermal energy conversionocean thermal energy conversion otecotec govt. A special feature of this technology is its capability to generate a stable supply of electricity around the clock. The technical evaluation of nonelectrical carriers lead, for example, to the consideration of hydrogen produced using electricity and desalinated water generated with otec technology. Ammonia will be used as the working fluid in this cycle. Otec ocean thermal energy conversion systems use the oceans natural thermal gradient the fact that the oceans layers of water have different temperatures to drive a powerproducing cycle. Ocean thermal energy conversion technology britannica.
Ocean thermal energy conversion act oteca of 1980 limits the ownership, construction and. Process and technology status ocean thermal energy conversion. Apr 23, 2018 a number of island states in the caribbean and pacific have ocean thermal energy conversion otec resources within 10 kilometres of their shores, though projects remain few and far between. 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. A number of island states in the caribbean and pacific have ocean thermal energy conversion otec resources within 10 kilometres of their shores, though projects remain few and far between. Ocean thermal energy conversion our oceans cover over 70% of the globes surface. Ocean thermal energy conversion otec is an energy technology that converts solar radiation to electric power. For a littleknown green technology, ocean thermal energy conversion once enjoyed something of a heyday. Ocean energy latest seminar topics for engineering csit. The purpose of this study is to define and assess a new, renewable and sustainable energy supply system for islands and remote area where ocean thermal. Otec systems use the ocean s natural thermal gradientathe fact that the ocean s layers of water have different temperatures to drive a powerproducing cycle. Warm seawater is taken in from the surface of the oceans and cold water from the deep at 5 o. Otec plants pump large quantities of deep cold seawater and surface seawater to run a power cycle and produce electricity.
Ocean thermal energy conversion otec projects have been around since the 1970s. 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. Tropical and subtropical regions where the water temperature at the ocean surface is relatively high are best suited for its use. Ocean energy latest seminar topics for engineering csitme. Closed cycle ocean thermal energy conversion systems use a working fluid with a low boiling point, ammonia for example, and use it to power a turbine to generate electricity. It contains details on submission, logistics, and registration for the largest annual ocean thermal energy conversion event. Technical readiness of ocean thermal energy conversion otec. Join us in exploring this exciting path into the future. Experimental ocean thermal energy conversion otec icoe. Principle and preliminary calculation of ocean thermal energy. It relies on the oceans thermal gradient the temperature decline from the sunwarmed waters on the surface to. 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.
Published in ocean energy recovery, pp 152181, asce 1992 1 vega 7. Robust adaptive control of an offshore ocean thermal energy. Pdf a new hybrid ocean thermal energy conversionoffshore. The major funding emphasis has been in otec because of its potential, state of development, and availability of the resource to u. Principle and preliminary calculation of ocean thermal.
The united states is developing four oceanenergy technologies which offer significant promise. Otec, or ocean thermal energy conversion, is an energy technology. Welcome to the okinawa prefecture deep sea water ocean thermal energy conversion otec demonstration facility. The energy production with otec is very constant, as the temperatures in the ocean hardly vary between day and night or even between the seasons.
The solar energy that is received by the oceans is mainly absorbed and converted into heat, due to the low reflectivity, or albedo, of the ocean. Ocean thermal energy conversion otec systems use a temperature difference of at least 77 fahrenheit to power a turbine to produce. The suns heat warms the surface water a lot more than the deep ocean water, which creates the oceans naturally available temperature gradient, or thermal energy. 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. A signircant fraction of solar radiation incident on the ocean is retained by seawater in tropical. Seminar report on ocean thermal energy conversion 1. Ocean thermal energy conversion otec is a process which utilizes the heat energy stored in the tropical ocean. Electricity generation by the ocean thermal energy tethys. Otec an attractive energy solution renewable energy a catalyst for economic growth wind, solar, geothermal, biomass, hydropower no single technology provides an ideal solution otec advantages baseload power 24 hoursday, 365 days a year high operating capacity reliable and consistent. This heat is trapped in the upper layer of the ocean, above the thermocline, which is the transition layer between. Ocean thermal energy conversion otec is a technology that dates back to the late 1800s and makes use of temperature differences between surface and deep ocean waters to drive a heat engine, and extract energy via the rankine cycle. This is the first true closedcycle ocean thermal energy conversion otec plant to be connected to a u. The low energy conversion efrciency of otec means that more than 90% of the thermal energy extracted from the oceans surface is wasted and must be rejected to the cold, deep sea water. Ocean thermal energy conversion otec types renewable.
Ocean thermal energy conversion eliminates the heat collector, and provides steady power, but has practical issues and tends to be in distant locations. Otec an attractive energy solution renewable energy a catalyst for economic growth wind, solar, geothermal, biomass, hydropower no single technology provides an ideal solution. The worlds oceans serve as a huge collector of heat energy. Ocean thermal energy conversion engineering seminar topics. For this process to work there must be at least a 20 degree celsius 36 degree fahrenheit difference between surface water and deep seawater. Ocean thermal energy conversion renewable energy caribbean. Ocean thermal energy conversion otec types renewable energy. Sumit thakur mechanical ocean thermal energy seminar and ppt with pdf report. Download the seminar report for ocean thermal energy. Wave energy conversion and ocean thermal energy conversion. However, many of the key issues of ocean renewable energy do not involve the technology of the conversion devices, but how ocean renewable energy sources relate to the overall system of energy, the environment, public policy and the practical and business issues of introducing such radical new systems into. Otec ocean thermal energy conversion works by using the temperature gradients found in large bodies of water, where the temperature of water found on the surface is significantly higher than the cold water found deeper down. In a nuclear power plant, an alternative structure is discussed for replacing surface seawater with condenser effluent in 16.
Renewable, clean and reliable power for energy needs of today and tomorrow. Global technology development status from march 2009 report prepared by the powertech labs inc. Ocean thermal energy conversion otec is one way in which sustainable energy can be generated from the ocean. Here youll find a collection of information on this historic project, as well as information on otec technology, news, and posts from facility staff. By taking note that wind energy conversion system has a very similar mechanics with the ocean energy conversion system, this can also be an opportunity for our local energy providers. 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. The working fluid in such a cycle will need to have a low boiling point. Here in the philippines, ocean energy is still on the infancy stage. Wave energy conversion and ocean thermal energy conversion potential in developing member countries. Pdf experimental ocean thermal energy conversion otec. Ocean thermal energy conversion otec is a process that employs the natural temperature difference between the surface and the depths of the ocean. Otec ocean thermal energy conversion systems use the ocean s natural thermal gradient the fact that the ocean s layers of water have different temperatures to drive a powerproducing cycle. Bansilal ramnath agarwal charitable trusts vishwakarma institute of technology a seminar report on ocean thermal energy conversion by mr.
Geothermal energy, tidal energy, wave energy, and ocean thermal energy 597 geothermal resources should, in general, have three important characteristics, as shown in figure 11. This is surprising since otec seems to be especially wellsuited for remote. The concept of otec was first explored in 1881 by french physicist, jacques arsene darsonval, but was not explored in the united states until the 1970s. Ocean thermal energy conversion otec is a process able to produce base electricity through the. Ocean thermal energy conversion, or otec, uses seawater to turn solar energy into electricity. First introduced in 1881, otec has been described as an effective and renewable energy source.
Otec, or ocean thermal energy conversion, is an energy technology that converts solar radiation to electric power. Journoud and others published experimental ocean thermal energy conversion otec project on the reunion island find, read and cite all the research you need on researchgate. Ocean thermal energy conversion otec uses the ocean thermal gradient between cooler deep and warmer shallow or surface seawaters to run a heat engine. The organizers of the 8th international otec symposium, scheduled for october 2223, 2020 in cancun, have released a website for this years event. Economics of ocean thermal energy conversion otec luis a. Abstract ocean thermal energy conversion otec is the use of a high surface temperature of the water with the low temperature of the water at a certain depth thus creating a heat engine. Ocean thermal energy conversion otec generates electricity indirectly from solar energy by harnessing the temperature difference between the sunwarmed. The united states is developing four ocean energy technologies which offer significant promise. The purpose of this study is to define and assess a new, renewable and sustainable energy supply system for islands and remote area where ocean thermal energy conversion otecphotovoltaic with. 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. Otec systems use the oceans natural thermal gradientthe fact that the oceans layers of water have different temperatures to drive a powerproducing cycle. Salinity gradient conversion exploits the difference between salinity of fresh water and salt water, or salt. Ocean thermal energy conversion research papers academia.
Otec is not like wind power or solar power which are intermittent, because the technology can operate on a 247 basis. 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. Ocean thermal energy conversion ocean thermal energy conversion otec is a means of converting into useful energy the temperature difference between surface water of the oceans in tropical and subtropical areas, and water at a depth of approximately 1 000 meters which comes from the polar regions. Ocean thermal energy conversion otec is a way of getting useful energy from the worlds oceans. Ocean thermal energy conversion makai ocean engineering. Otec can operate with a very high capacity factor and so can operate in base load mode the denser cold water masses, formed by ocean surface water interaction. An ocean thermal energy conversion otec is a system of converting thermal energy in electricity by using the temperature difference between warm water at the surface of the ocean and cold water. For the past decades, united kingdom has been developing efficient ocean energy converters that are already out for market based on ocean energy. Ocean thermal energy conversion otec generates electricity indirectly from solar energy by harnessing the temperature difference between the sunwarmed surface of tropical oceans and the colder deep waters. Ocean thermal energy conversion development update. Cost effective otec ocean thermal energy conversion.
The warm seawater vaporizes the fluid in the heat exchanger which then turns the turbines of the. Ocean thermal energy conversion otec uses the temperature difference between the surface and deep layers to generate electricity. An ocean thermal energy conversion power plant built by makai ocean engineering went operational in hawaii in august 2015. The stored thermal energy is completely renewable so that ocean thermal energy use will not reduced the stored energy quantity. Ocean thermal energy heat exchanger energy conversion. Ocean thermal energy conversion is a technology that converts thermal energy into electricity. Ocean thermal energy conversion simple english wikipedia.
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