Otec systems use the ocean s natural thermal gradientthe fact that the ocean s layers of water have different temperaturesto drive a. Ocean thermal energy conversion technology britannica. The planned construction of an otec ocean thermal energy conversion power plant in the southern chinese high seas is set to become the largest power plant in the world. The generated electrical power and the efficiency of otec plant are enhanced by a.
Otec can operate with a very high capacity factor and so can operate in base load mode. 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. Wave and tidal technologies are modular in design, and therefore large power plant. An ocean thermal energy conversion power plant built by makai ocean engineering went operational in hawaii in august 2015. Developers of ocean thermal energy systems can now access this information through an interactive tool to help identify feasible locations to develop ocean thermal energy systems. This paper presents a design concept of ocean thermal energy conversion otec plant built in mamuju, west sulawesi, with 33 mwe and 7. Occasionally, low levels of contamination may be left in places. Ocean thermal energy conversion otec is a process that employs the. Fujita environmental defense, 5655 college avenue suite 304, oakland, ca 94618 usa.
Demonstrated that net power can be generated from a land based otec system and delivered to a real power grid. Generated output was used to power the plant and the remaining electricity was used to power a school and other places. Power plants boil water to produce steam, which is used to spin the turbines that generate electricity. The power plant is intended to be a joint venture between two business giants, usbased engineering corporation lockheed martin and hong kongbased construction consortium reignwood. The second meeting of the committee was held in cea, new delhi on 25.
Prime minister narendra modis vision of developing blue economy to complement indias economic trajectory is getting onto the drawing board, with the development of an indigenous technology to tap ocean energy. It stood first in country during 9899, 200203, 200304 and second during 992000, 200102. This is the first true closedcycle ocean thermal energy conversion otec plant to be connected to a u. Electricity generation by the ocean thermal energy tethys. Otec, or ocean thermal energy conversion, is an energy technology that converts solar radiation to electric power.
Pdf ocean thermal energy conversion using doublestage. It is anticipated that the results accomplished under this effort and the prior research on which it. Before building an otec power plant on the reunion. Power plants and protect our water resources and aquatic ecosystems pdf. We can learn that ocean thermal energy power plants are located in the water. Its practical approach is ideal for engineering professionals. Wave energy conversion and ocean thermal energy conversion. I would like to include information about your company in the following format. The power plant is one of the coal based power plants of hpgcl. However, the highest of all are coal and oil, with risk about 400 times that of natural gas. The ocean thermal energy conversion otec system relies on the stored thermal energy difference in the oceans. Renewable, clean and reliable power for energy needs of today and tomorrow. If the waste heat is instead used for district heating, it is called cogeneration.
Conclusions and recommendations 32 figures 1 global distribution of annual wave power flux from wave watch iii windwave model 3 2 global distribution of annual wave power flux from fugro oceanor worldwaves model 3 3 wave energy conversion 4. Then, staggering volumes of water are withdrawn from nearby rivers, lakes, and oceans to cool the steam back into water so it can be used to produce more electricity. Coal plant decommissioning plant decommissioning, remediation and redevelopment at most sites, the public is invited to comment on the cleanup plan that. A thermal power station is a power plant in which the prime mover is steam driven. This is the first true closedcycle ocean thermal energy conversion otec. The station is performing well in the recent years by achieving high plant load factor. 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.
This report documents the modeling efforts and results of a resource assessment focused on ocean. Makai ocean engineerings ocean thermal energy conversion otec power plant is the worlds biggest operational facility of its kind, with an annual power generation capacity of 100kw, which is sufficient to power 120 homes in hawaii. Indias first ocean power generation project coming up in. Journal of mechatronics, electrical power, and vehicular. Ppt thermal power plant powerpoint presentation free.
Otec plants pump large quantities of deep cold seawater and surface seawater to run a power cycle and produce electricity. After it passes through the turbine, the steam is condensed in a condenser. Pdf experimental ocean thermal energy conversion otec. Thermal power plants for utility in japan thermal power plants for private use and ipp plants in japan overseas thermal power plants geothermal power plants technical development tepco ooi thermal power station, unit no. Example of an existing installation is the 105 kv otec power plant on big island. Research in ocean thermal energy conversion, wave energy, tidal energy, and. The machinery used, once installed, requires low maintenance. Bercen training program on onsite inspection for the. A signircant fraction of solar radiation incident on the ocean is retained by seawater in tropical. Optimization of ocean thermal energy conversion power plants. Introduction to ocean thermal energy conversion and otec power system techno logy.
Known as one of the most efficient and prestigious thermal power plants in india the kota super thermal power plant. In this paper, performance of 10 mw, 50 mw, and 100 mw otec power plants in locations with surface. Demonstrated total pilotplant construction and operation. Table 31 100mwe net150mwe gross power process conditions. Power plant cooling and associated impacts the need to modernize u. The technology, existing plants and their operation, estimated resource potential, future developments, advantages and challenges of mre are presented. For the given thermal power plant configuration, cooling water temperature orand flow rate change generate. This study was commissioned by ocean energy systems oes and developed by an international team.
Thermal power plant presents practical content on coal, gas, oil, peat and biomassfueled thermal power plants, with chapters in steam power plant systems, start up and shut down, and interlock and protection. Otec systems use the oceans natural thermal gradientthe fact that the oceans layers of water have different temperaturesto drive a. Climate risk and adaptation in the electric power sector. Oes news international lcoe for ocean energy technology. Developments will be in locations with high resource availability. Ocean thermal energy plants are uniquely situated to be able. Abstractdesign of an ocean thermal energy conversion otec power plant needs a local thermal condition evaluation, in order to satisfy the constructional limits as well as economical considerations.
International levelised cost of energy for ocean energy. Circulates in a closed loop, this concept has been named closedcycle otec ccotec. Pdf analysis of ocean thermal energy conversion power plant. Solar thermal power plants usually have a large field or array of collectors that supply heat to a turbine and generator. 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. Most other nonconventional systems have far higher risk.
The total core heat transfer rate to the reactor coolant. Thermal power generation plant or thermal power station is the most conventional source of electric power. Solar thermal power systems have tracking systems that keep sunlight focused onto the receiver throughout the day as the sun changes position in the sky. The levelised cost of electricity lcoe of a geothermal power plant ranges from usd 0. Worlds largest ocean thermal energy conversion otec. The book thermal power plants advanced applications introduces analysis of plant performance, energy efficiency, combustion issues, heat transfer, renewable power gen.
This waste heat can go through a condenser and be disposed of with cooling water or in cooling towers. Each block of the tpp bitola consists of the main installation building. Ocean thermal energy conversion engineering university of. Demonstrated that net power can be generated from a land based otec system and delivered to. However, the highest of all are coal and oil, with risk about 400 times that of. It also identifies adaptation options available to each source of energy generation as well as for the distribution and end use of electrical energy. An analysis of a thermal power plant working on a rankine cycle. 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. Read more about indias first ocean power generation project coming up in kavaratti, lakshadweep on business standard. Process and technology status ocean thermal energy conversion. Situated on the bank of river chambal near kota in rajasthan. Steadierstillisocean thermal energy conversion otec, which conceptually can provide baseload power almost continuously 4,5. Ocean thermal energy conversion makai ocean engineering.
Makais ocean thermal energy conversion otec power plant. Thermal power plant is also referred as coal thermal power plant and steam turbine power plant. An analysis of a thermal power plant working on a rankine. 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 power four activities us department of energy. Also, the staff needed to run and operate these floating otec plants is minimal and hence costeffective. Report on minimisation of water requirement in coal based thermal power stations 2 system. The block of the thermal power plant is an independent technological whole for electricity generation and operation of one block is not conditioned by the operation, i. Multiobjective optimization of ocean thermal energy. International lcoe for ocean energy technology posted 20150529 in news an analysis of the development pathway and levelised cost of energy trajectories of wave, tidal and otec technologies. Ocean thermal energy conversion produces energy from temperature differences in ocean waters.
Pdeen bandhu choturam thermal power plant is a project of haryana power generation corporation limited hpgcl. Introduction in india 65% of total power is generated by the thermal power stations. We have replaced the conventional ocean thermal energy conversion system, otec with a suitably designed assembly of. Water is heated, turns into steam and spins a steam turbine which either drives an electrical generator or does some other work, like ship propulsion. Optimization of ocean thermal energy conversion power plants by steven emanoel rizea b. Select optimization methods from the literature are shown to produce between 93% and 99% of the maximum possible. Pdf the use of organic isobutane will be investigated for a closedcycle ocean thermal energy conversion otec onshore plant that. The governor of hawaii, david ige, flipped the switch to activate the plant. The energy of a thermal power station not utilized in power production must leave the plant in the form of heat to the environment. The suns heat warms the surface water a lot more than the deep ocean water and the temperature difference creates thermal energy.
Ocean thermal energy conversion otec pdf ocean thermal energy conversion otec uses the temperature difference between. We have replaced the conventional ocean thermal energy conversion system, otec with a suitably designed assembly of multiple stirling engines of alpha type. Because about 5mw of the power generated by the gas plant is devoted to air. Xx june to xx july 20xx submitted in partial fulfillment of the requirement award of the degree in. Climate risk and adaptation in the electric power sector this report aims to highlight and raise awareness on the exposure and vulnerability of the energy sector to climate change. Otec cycles pdf performance of otec power cycles the ruleof thumb is that a differential of about 203c is neces sary to sustain viable operation of an otec facility.
Ocean power generation pdf ocean power includes technologies that tap the. Renewable energy from the ocean fishery solutions center. The evaluation is based on a comparison of the net power output of an otec plant with a fixed configuration. Dec 11, 2019 the planned construction of an otec ocean thermal energy conversion power plant in the southern chinese high seas is set to become the largest power plant in the world. International levelised cost of energy for ocean energy technologies. Rayalaseema thermal power plant was developed under 3 stages namely stage i,ii and iii. Tive methods of generating electricity, however, ocean. Before going into detail of this topic, we will try to understand the line diagram of electric power generation plant. Panipat thermal power station is situated at a distance of about 12 km. Coal is burnt in a boiler in a coal power plant to generate heat that is used to boil the. Each day the sun provides the equivalent of 250 billion barrels of in the form of thermal energy to our oceans. The first four units was bifurcated from the total 8 units of the plant.
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