This book is an invaluable resource for students at graduate and senior undergraduate level engineering ocean, mechanical, and civil and oceanography with prior knowledge of fluid mechanics and. 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. At one point, we all have to make ppt of any topic and submit its report. Ocean thermal energy conversion otec generates electricity indirectly from solar energy by harnessing the temperature difference between the sunwarmed. Ocean thermal energy conversion systems convert the energy available in the temperature gradient of the warm surface. Ocean energy conversion systems are being developed in a number of countries, as shown in fig.
Pdf ocean thermal energy conversion siddharth garaniya. Pdf ocean energy is an important and promising renewable energy for the future. Ocean power four activities us department of energy. Global world energy overview with specific part from ocean energy pdf. Ocean thermal energy conversion, or otec, uses seawater to turn solar energy into 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. Ocean thermal energy conversion research, development, and demonstration act 42 u. Ocean thermal energy conversion produces energy from temperature differences in ocean waters. The upper layer is warmed by the sun and mixed to depths of about 100 m by wave motion. Ocean thermal energy conversion plant is a combination of marine waters and power generation. Thereby, the paper seeks to enhance investigation of results obtained in other fields in the ocean wave energy conversion setting and to stimulate research on topics that have not been in the. Predictable and continuous, the energy produced in this way is particularly environmentally friendly and decarbonised.
After a consideration of the development of an ocean renewable energy project from site selection and device design through to grid connection and commissioning, we finally discuss how tidal energy conversion influences sediment dynamicsa process, via morphodynamics, that can influence the resource itself. The united states and other countries are pursuing ocean current energy. Process and technology status wave energy converters wecs capture the energy contained in ocean waves to generate electricity. An ocean thermal energy conversion power plant built by makai ocean engineering went operational in hawaii in august 2015.
Ocean thermal energy conversion otec is a process or technology for producing energy by harnessing the temperature differences thermal gradients between. Two major ocean thermal technologies are of interest in hawaii. This is the first true closedcycle ocean thermal energy conversion otec plant to be connected to a u. Relative to wind, wave, and tidal resources, the energy resource potential for ocean current power is the least understood, and its technology is the least mature.
Ocean thermal energy seminar and ppt with pdf report. Technical readiness of ocean thermal energy conversion otec. Ocean thermalenergy conversionotec utilizes the worlds largestsolar radiation collector theocean. 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 with cold atmosphere in. Fundamentals of ocean renewable energy sciencedirect. The temperature difference between the surface water which gets heated by the direct sun rays and the water at the sea bed is utilized to run a heat engine and produce useful work. Examining the future of ocean thermal energy conversion. Technical readiness of ocean thermal energy conversion. Solar, wind, and ocean energy conversion systems describes various energy harvesting technologies, different topologies, and many types of power electronic interfaces for standalone utilization or grid connection of energy harvesting applications. Wave energy conversion and ocean thermal energy conversion. Global world energy overview with specific part from ocean energy. This assessment describes the potential of ocean thermal energy conversion otec to produce not only clean energy but also potable water, refrigeration, and aquaculture products.
As with any largescale development in the marine environment, however, it comes with uncertainty about potential environmental impacts, most of which have not been adequately evaluatedin part because many of the devices have yet to be deployed and tested. Pa p e r economic and social benefits from wave energy. 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. A project certified by the department of energy doe as a demonstration project is exempt from being required to obtain an otec license from noaa, pursuant to the. Sumit thakur mechanical ocean thermal energy seminar and ppt with pdf report. Despite enthusiastic projections and promising prototypes, however, a lack of governmental support and the need for risky capital investment have. Wave power calculations for a wave energy conversion device. Ocean thermal energy conversion otec is a process or technology for producing energy by harnessing the temperature differences thermal gradients between ocean surface waters and deep ocean waters. The performance and effectiveness of the multistage cycle are barely. Ertekinb department of ocean and resources engineering, university of hawaii at manoa, 2540 dole st. Energy conversion and management has an open access mirror journal energy conversion and management. Tidalocean energy conversion systems by the implementation of machine learning ml.
Along with providing all the necessary concepts and. The ocean contains enoughenergy power all of the worlds otec is a way to generateelectrical needs. 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. Ocean thermal energy conversion otec harnesses the difference in temperature between the surface water about 25c and the water at depth about 5c at depths greater than m based on the principle of thermal exchange.
Ocean thermal energy conversion otec using nonazeotropic mixtures such as ammoniawater as working. The ocean energy systems energy technology collaboration programme oes was launched in 2001. Predictable and continuous, the energy produced in this way is particularly environment. Between now and the 1990s there is a requirement to. It is one of the renewable energy resources that do not arise any indeed harmful impact on our environment. 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. Ertekinb department of ocean and resources engineering, university of hawaii at manoa. Mar 10, 2015 ocean thermal energy seminar and ppt with pdf report.
Ocean thermal energy conversion is technically feasible in geographical areas with warm surface water and cold deep water, providing a temperature difference that can be leveraged to produce power. First introduced in 1881, otec has been described as an effective and renewable energy source. Schematic representation of an energy conversion device. Principle and preliminary calculation of ocean thermal. Ocean thermal energy conversion, which generates power from the temperature difference between warm surface seawater and cold seawater at 8001,000 metres depth. Tidal energy extracted from the turbines depends on ocean current speed, tidal height, sea temperature, up cross period which most artificially intelligent algorithms such as neural networks ignore.
Thermal energy geothermal, ocean thermal radiant energy solar chemical energy oil, coal, gas, biomass nuclear energy uranium, thorium 6 sustainable energy fall 2010 conversion. Hill climb search is the most common and accurate methodology. Extracting energy from ocean waves is not a recent phenomenon, as r esearchers have been studying different concepts or solutions since the 1970s. Bohn solar energy rasearch institute a division of midwest research institute 1536 cole boulevard golden, colorado 80401 operated for the u.
Pa p e r economic and social benefits from wave energy conversion marine technology a b s t r a c t this paper summarizes the energy resource, the energy conversion technology, and the economic and social benefits of using wave energy technology. Process and technology status ocean thermal energy conversion. Ocean thermal energy conversion an overview sciencedirect. It use a temperature difference 20 ac between the upper layer of ocean surface and bottom layer of ocean surface is required to run the turbine to generate an electricity. Download the seminar report for ocean thermal energy. Ocean thermal energy conversion otec is considered as a promising resource of energy in the future. 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. While pilot scale plants ocean current energy technologies. Ocean thermal energy conversion plant market size, industry. The ocean energy systems technology collaboration programme oes is an intergovernmental collaboration between countries, which operates under framework established by the international energy agency in paris. The efficiency of an energy conversion device is a quantitative expression of this balance between energy input and energy output. And getting a right seminar for submission is really a tough task.
Diaz diazb, julia rosa martinez garciab, courtney scarboroughc, patrick green. Ocean energy is estimated to be able to provide 2 to 3 million megawatts of power from our worlds coastlines. Ocean energy europe 20 estimates that there is the potential to create 20 000 jobs throughout the supply chain of the marine energy sector by 2030. Both rely on the fact that the deep ocean is significantly colder than the tropical surfacenearly 40 degrees fahrenheit colder. The most developed conversion systems refer to tidal energy, thermal energy otec, marine. 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.
Revisiting ocean thermal energy conversion rod fujitaa,n, alexander c. X, sharing the same aims and scope, editorial team, submission system and rigorous. Marine renewable energy promises to assist in the effort to reduce carbon emissions worldwide. Tt documents work done by the seri materials, systems analysis, and solar thermal conversion branches on task 3127. The working fluid in such a cycle will need to have a low boiling point. Wave power calculations for a wave energy conversion. The governor of hawaii, david ige, flipped the switch to activate the plant. Wave energy conversion and ocean thermal energy conversion potential in developing member countries. Finally, case studies of ocean energy sites and devices allow for a better understanding of how ocean energy conversion works in realworld settings.
Extracting energy from ocean waves is not a recent phenomenon, as r esearchers have been studying different concepts or. Ocean energy, including wave and tidal current energy. 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. Research regarding ocean energy resources, status of wave and tidal power technologies, and ocean thermal energy conversion otec technologies was. The technology ocean thermal energy conversion otec harnesses the temperature difference between surface and deep water. Ocean thermal energy conversion otec has become a serious contender for development as an economic power generation system for the last decade of this century, since the cost of conventional fuels particularly oil rose during and from 1973. Although it may seem like an environmentalists fantasy, experts in oceanic energy contend that the technology to provide a truly infinite source of power to the united states already exists in the form of ocean thermal energy conversion otec. Environmental and ecological effects of ocean renewable.
Energy conversion device energy input energy output energy output energy input 1st law useful energy output energy input 2nd law figure 41. Aguileraf a environmental defense fund, 123 mission street, 28th floor, san francisco, ca 94105, usa b department of industrial engineering, university of matanzas, carretera a varadero km3 12. Ocean thermal energy conversion technology britannica. The operation of otec plant is based upon thermodynamic principle in which if a heat source is available at a higher temperature and a heat sink at a lower temperature then the temperature difference can be utilized to run a prime mover e.
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. Wave power calculations for a wave energy conversion device connected to a drogue jerica d. Oceans contain a huge energy resource with different origins. Nov 18, 2016 the reality of available resources for each type of ocean energy system follows. 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. Ocean wave energy conversion a survey conference paper pdf available in conference record ias annual meeting ieee industry applications society 3.
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