OTEC system is based on thermal energy conversion system. In this there are open and closed ocean thermal energy conversion systems along with advantages and disadvantages
OTEC utilizes the temperature difference between warm surface waters and cold deep ocean waters to generate electricity. Using the Rankine cycle, warm water is used to evaporate a working fluid like ammonia in a heat exchanger, the vapor then drives a turbine which powers a generator before being condensed back into a liquid using cold deep water. While OTEC provides clean energy and fresh water, the large infrastructure needs and costs have limited its commercial development to date.
Tidal energy can be harnessed by constructing dams or barrages between tidal basins and the sea. During high tide, seawater fills the basin through sluice gates and turbines. During low tide, the water flows back to the sea through the turbines, turning them to generate electricity. There are different types of tidal power plants based on the number of basins and generation cycles. Single basin one-way plants generate power during ebb tides only, while double basin plants alternate generation between two basins to provide continuous power. Tidal energy is a renewable source but has high capital costs and generation varies with tidal patterns.
This is presentation of boiling water reactor.
In this overview of boiling water reactor power plant.
comparison between boiling water reactor and pressurise water reactor.
Contain - control system , Steam turbine,fuel of boiling water reactor system and their advantages and disadvantages.
Contain - control system , Steam turbine,fuel of boiling water reactor system and their advantages and disadvantages.
The document discusses nuclear fuels used in nuclear power plants such as uranium-235 and plutonium-239, how nuclear fission produces energy through a self-sustaining chain reaction, and the key components of nuclear reactors including the reactor core, control rods, moderator, coolant, and safety measures. It also covers different types of nuclear reactors like pressurized water reactors and boiling water reactors, as well as waste disposal and the future prospects of nuclear power.
The document discusses wind energy potential and offshore wind potential. It provides information on how wind is created due to differences in atmospheric pressure and heating from the sun. It also describes the basic working principle of wind turbines, how they convert kinetic energy from wind into electrical energy. Offshore wind potential in India is discussed, with the country having a long coastline and EEZ that provides good potential for offshore wind farms.
Ocean Thermal Energy Conversion SystemsNaveen Kumar
OTEC or OCEAN THERMAL ENERGY CONVERSION, is a renewable energy technology that converts solar radiation to electric power by use of the world oceans. The use of OTEC as a source of electricity will help reduce the state’s almost complete dependence on imported fossil fuels. About one fourth of the 1.7 * 1013 watts of solar energy reaching the earth’s atmosphere is absorbed by sea water. OTEC can be considered as an indirect solar technology because the surface water are warmed by the sun. OTEC can also be used to produce ammonia, hydrogen, aluminium, chlorine and other chemicals.
OTEC utilizes the temperature difference between warm surface waters and cold deep ocean waters to generate electricity. Using the Rankine cycle, warm water is used to evaporate a working fluid like ammonia in a heat exchanger, the vapor then drives a turbine which powers a generator before being condensed back into a liquid using cold deep water. While OTEC provides clean energy and fresh water, the large infrastructure needs and costs have limited its commercial development to date.
Tidal energy can be harnessed by constructing dams or barrages between tidal basins and the sea. During high tide, seawater fills the basin through sluice gates and turbines. During low tide, the water flows back to the sea through the turbines, turning them to generate electricity. There are different types of tidal power plants based on the number of basins and generation cycles. Single basin one-way plants generate power during ebb tides only, while double basin plants alternate generation between two basins to provide continuous power. Tidal energy is a renewable source but has high capital costs and generation varies with tidal patterns.
This is presentation of boiling water reactor.
In this overview of boiling water reactor power plant.
comparison between boiling water reactor and pressurise water reactor.
Contain - control system , Steam turbine,fuel of boiling water reactor system and their advantages and disadvantages.
Contain - control system , Steam turbine,fuel of boiling water reactor system and their advantages and disadvantages.
The document discusses nuclear fuels used in nuclear power plants such as uranium-235 and plutonium-239, how nuclear fission produces energy through a self-sustaining chain reaction, and the key components of nuclear reactors including the reactor core, control rods, moderator, coolant, and safety measures. It also covers different types of nuclear reactors like pressurized water reactors and boiling water reactors, as well as waste disposal and the future prospects of nuclear power.
The document discusses wind energy potential and offshore wind potential. It provides information on how wind is created due to differences in atmospheric pressure and heating from the sun. It also describes the basic working principle of wind turbines, how they convert kinetic energy from wind into electrical energy. Offshore wind potential in India is discussed, with the country having a long coastline and EEZ that provides good potential for offshore wind farms.
Ocean Thermal Energy Conversion SystemsNaveen Kumar
OTEC or OCEAN THERMAL ENERGY CONVERSION, is a renewable energy technology that converts solar radiation to electric power by use of the world oceans. The use of OTEC as a source of electricity will help reduce the state’s almost complete dependence on imported fossil fuels. About one fourth of the 1.7 * 1013 watts of solar energy reaching the earth’s atmosphere is absorbed by sea water. OTEC can be considered as an indirect solar technology because the surface water are warmed by the sun. OTEC can also be used to produce ammonia, hydrogen, aluminium, chlorine and other chemicals.
The document provides information about wind energy and biomass energy. It discusses various topics related to wind energy sources and potentials in India, types of wind turbines including horizontal axis and vertical axis turbines, their performance characteristics, Betz criteria, and factors affecting wind turbine performance. It also covers biomass energy sources, principles of bioconversion including thermo-chemical and bio-chemical conversion processes like anaerobic digestion and gasification.
Hydrogen is the most abundant element in the universe and can be used as a renewable energy. It rarely occurs naturally on Earth as H2. There are three main production methods - chemical reforming, electrolysis, and thermochemical processes. Chemical reforming, also called steam reforming, uses high temperatures to produce hydrogen. Electrolysis uses electricity to split water into hydrogen and oxygen. Thermochemical processes employ chemical reactions and heat to produce hydrogen at lower temperatures than steam reforming. Fuel cells that use hydrogen have higher efficiencies than gasoline engines and can power vehicles. Further improvements to hydrogen production and fuel cells are needed to enable widespread use.
Solar thermal power generation systems use mirrors to collect sunlight and produce steam by solar heat to drive turbines for generating power. This system generates power by rotating turbines like thermal and nuclear power plants, and therefore, is suitable for large-scale power generation.
This document discusses wave energy as a renewable source of energy. It explains that wind energy transfers to ocean waves, and wave energy machines like turbines and buoys can capture this energy from waves and tides to generate pollution-free electricity. While wave energy technology is still developing, it is estimated that fully utilizing wave energy could satisfy around 40% of the world's total energy needs. The main ways to capture wave power are surface devices, underwater devices, and reservoirs. The document also describes different types of wave energy converters including attenuators, point absorbers, submerged pressure differential devices, overtopping devices, and oscillating wave surge converters.
Ocean Thermal Energy Conversion (OTEC) is a process that uses the temperature difference between warm surface ocean water and cold deep sea water to produce electricity. There are three types of OTEC systems - closed loop, open loop, and hybrid. OTEC takes advantage of the sun's energy absorbed and stored in the ocean to drive a turbine that generates electricity. In addition to power generation, OTEC can provide desalinated water, refrigeration, air conditioning, and support aquaculture. While high capital costs currently limit OTEC, it has potential as a renewable source of clean energy without emissions.
Geo-Thermal Energy
Introduction
Resources of geo thermal energy
Hydrothermal or Hydro-Geothermal Energy Resources
Petro-thermal or Petro-Geothermal Energy Resources
Geo-pressure Resources
Vapour dominated power plant
Liquid dominated system
Flashed steam system
Binary system
Enhanced Geothermal System
Cost, Price, and Challenges
Advantages
Application of Geothermal Energy
Environmental effects of geothermal energy sources
Indian organizations working in geothermal energy
Geothermal power in India
Geothermal Scenario in India
Scope for Development
Development of Geothermal Resources
India's first Geothermal Energy Power Plant Project in Ladakh
By:
Amar Preet Singh
Academic Experience: 6+ years
Subscribe to My YouTube Channel
https://bit.ly/Amarpreetsingh
The document discusses hydroelectric (hydel) power plants. It describes the basic working principle where potential energy from water stored behind a dam is converted to kinetic energy and used to turn turbines which generate electricity. It then outlines the key components of a typical hydroelectric power plant including the water reservoir, dam, spillways, surge tank, penstock, turbines, generators and transmission lines. It also classifies hydel plants based on water head and lists some common turbine types used. Advantages like renewable energy source and lower operating costs are highlighted along with disadvantages such as high initial costs and reduced power in drought seasons.
Ocean Thermal Energy Conversion (OTEC) utilizes the temperature difference between warm surface seawater and cold deep seawater to produce electricity via a Rankine cycle. It can also desalinate water and support mariculture. OTEC uses the sun's heating of the ocean's top layers and input of cold water from polar regions to create a heat source and sink. While offering clean energy, OTEC is limited to tropical ocean sites and has high capital costs, with no systems yet demonstrated at full scale long-term.
This document discusses solar energy storage and applications. It describes different methods of solar energy storage including sensible heat storage using materials like water, rocks, and concrete. Latent heat storage using phase change is also discussed. Thermal energy storage techniques like solar ponds are explained. Applications of solar energy covered include solar heating/cooling, distillation, drying, and photovoltaic energy conversion. Basic elements of a solar water heating system and different types including natural circulation and forced circulation models are outlined.
Solar Energy Storage:-
Methods of storage such as sensible, latent heat &
thermochemical storage,selection of method of storage,
properties of storage materials and different arrangements of
storages
A flywheel, in essence is a mechanical battery - simply a mass rotating about an axis.Flywheels store energy mechanically in the form of kinetic energy.They take an electrical input to accelerate the rotor up to speed by using the built-in motor, and return the electrical energy by using this same motor as a generator.Flywheels are one of the most promising technologies for replacing conventional lead acid batteries as energy storage systems.
Oro551 res- unit 1 - environmental impact of solar energykarthi keyan
This document discusses the environmental impacts of solar power generation. It addresses land use and habitat loss, noting that photovoltaic solar requires 3.5 to 10 acres per megawatt while concentrating solar thermal requires 4 to 17 acres per megawatt. Water use is also discussed, stating that concentrating solar thermal requires around 2,000 liters of water per megawatt, while photovoltaic solar requires around 20,000 liters of water per megawatt for regular cleaning. Finally, the document covers the use of hazardous materials in manufacturing, such as chemicals used to clean semiconductor surfaces for photovoltaic cells and toxic materials contained in thin film technologies that must be properly handled and disposed.
Tidal energy harnesses the potential energy of ocean tides and converts it into electricity. There are three main types of tidal generators: tidal stream generators, dynamic tidal power systems, and tidal barrages. Tidal barrages capture potential energy by trapping water behind barriers that is then released through turbines. While large amounts of power can be generated with minimal emissions, tidal barrages require high upfront costs and can significantly impact marine environments and sediment flows. The Gulf of Kutch and Gulf of Cambay in India have significant tidal ranges and potential for tidal energy development.
This document provides an overview of superconducting magnetic energy storage (SMES). It discusses the history and components of SMES systems, including superconducting coils, power conditioning systems, cryogenic units, and control systems. The operating principle is described, where energy is stored in the magnetic field created by direct current flowing through the superconducting coil. Applications include providing stability and power quality for the electric grid. Challenges include the large scale needed and cryogenic cooling required to maintain superconductivity.
Oro551 res- unit 1 - the solar energy optionkarthi keyan
This document discusses renewable energy sources with a focus on solar energy options. It provides information on different solar energy technologies including photovoltaic systems, solar water heating, solar thermal power plants, solar cookers, solar bikes, solar pumps, and solar power towers. For each technology, it describes its basic components and functioning. The document aims to educate about harnessing solar energy for electricity generation and other applications.
India's electricity sector has an installed capacity of 250 GW as of 2014. Thermal power makes up the majority at 87.5% of capacity, while renewable sources like hydro, solar and wind make up the remaining 12.5%. Coal fired plants account for 59% of India's installed capacity. India faces challenges in meeting rising demand due to insufficient domestic coal reserves and transmission and distribution losses. However, the government is promoting renewable energy and aims to increase nuclear and hydro power generation to meet its growing needs in a sustainable manner.
This document outlines osmotic power, which generates energy from the difference in salt concentration between seawater and freshwater. It works via pressure retarded osmosis (PRO) where freshwater naturally moves through a semi-permeable membrane into higher salinity seawater, increasing pressure. This pressure powers a turbine to generate electricity. Key components include membrane modules to separate the waters, filters to optimize membrane performance, and a turbine/generator. Experimental results showed a prototype achieving over 90% efficiency and the potential to scale installations by adding more membrane modules.
Ocean Thermal Energy Conversion SystemsVedaNarayana4
In this presentation I'm explaining about Closed and Open cycle OTEC systems with detailed explanation and advantages and disadvantages of OTEC systems.
This document discusses ocean thermal energy conversion (OTEC) cycles and their working principles. There are two main types of OTEC cycles - closed cycles that use working fluids like ammonia, and open cycles that use seawater. Closed cycles involve vaporizing a working fluid using warm surface water and condensing it back using cold deep water to drive a turbine. Open cycles use flash evaporation of warm surface water directly to produce steam to drive a turbine, with the exhaust steam condensed back using cold deep water. India has potential for 180GW of OTEC and has commissioned its first 1MW OTEC plant off Tuticorin port called Sagar Shakti.
The document provides information about wind energy and biomass energy. It discusses various topics related to wind energy sources and potentials in India, types of wind turbines including horizontal axis and vertical axis turbines, their performance characteristics, Betz criteria, and factors affecting wind turbine performance. It also covers biomass energy sources, principles of bioconversion including thermo-chemical and bio-chemical conversion processes like anaerobic digestion and gasification.
Hydrogen is the most abundant element in the universe and can be used as a renewable energy. It rarely occurs naturally on Earth as H2. There are three main production methods - chemical reforming, electrolysis, and thermochemical processes. Chemical reforming, also called steam reforming, uses high temperatures to produce hydrogen. Electrolysis uses electricity to split water into hydrogen and oxygen. Thermochemical processes employ chemical reactions and heat to produce hydrogen at lower temperatures than steam reforming. Fuel cells that use hydrogen have higher efficiencies than gasoline engines and can power vehicles. Further improvements to hydrogen production and fuel cells are needed to enable widespread use.
Solar thermal power generation systems use mirrors to collect sunlight and produce steam by solar heat to drive turbines for generating power. This system generates power by rotating turbines like thermal and nuclear power plants, and therefore, is suitable for large-scale power generation.
This document discusses wave energy as a renewable source of energy. It explains that wind energy transfers to ocean waves, and wave energy machines like turbines and buoys can capture this energy from waves and tides to generate pollution-free electricity. While wave energy technology is still developing, it is estimated that fully utilizing wave energy could satisfy around 40% of the world's total energy needs. The main ways to capture wave power are surface devices, underwater devices, and reservoirs. The document also describes different types of wave energy converters including attenuators, point absorbers, submerged pressure differential devices, overtopping devices, and oscillating wave surge converters.
Ocean Thermal Energy Conversion (OTEC) is a process that uses the temperature difference between warm surface ocean water and cold deep sea water to produce electricity. There are three types of OTEC systems - closed loop, open loop, and hybrid. OTEC takes advantage of the sun's energy absorbed and stored in the ocean to drive a turbine that generates electricity. In addition to power generation, OTEC can provide desalinated water, refrigeration, air conditioning, and support aquaculture. While high capital costs currently limit OTEC, it has potential as a renewable source of clean energy without emissions.
Geo-Thermal Energy
Introduction
Resources of geo thermal energy
Hydrothermal or Hydro-Geothermal Energy Resources
Petro-thermal or Petro-Geothermal Energy Resources
Geo-pressure Resources
Vapour dominated power plant
Liquid dominated system
Flashed steam system
Binary system
Enhanced Geothermal System
Cost, Price, and Challenges
Advantages
Application of Geothermal Energy
Environmental effects of geothermal energy sources
Indian organizations working in geothermal energy
Geothermal power in India
Geothermal Scenario in India
Scope for Development
Development of Geothermal Resources
India's first Geothermal Energy Power Plant Project in Ladakh
By:
Amar Preet Singh
Academic Experience: 6+ years
Subscribe to My YouTube Channel
https://bit.ly/Amarpreetsingh
The document discusses hydroelectric (hydel) power plants. It describes the basic working principle where potential energy from water stored behind a dam is converted to kinetic energy and used to turn turbines which generate electricity. It then outlines the key components of a typical hydroelectric power plant including the water reservoir, dam, spillways, surge tank, penstock, turbines, generators and transmission lines. It also classifies hydel plants based on water head and lists some common turbine types used. Advantages like renewable energy source and lower operating costs are highlighted along with disadvantages such as high initial costs and reduced power in drought seasons.
Ocean Thermal Energy Conversion (OTEC) utilizes the temperature difference between warm surface seawater and cold deep seawater to produce electricity via a Rankine cycle. It can also desalinate water and support mariculture. OTEC uses the sun's heating of the ocean's top layers and input of cold water from polar regions to create a heat source and sink. While offering clean energy, OTEC is limited to tropical ocean sites and has high capital costs, with no systems yet demonstrated at full scale long-term.
This document discusses solar energy storage and applications. It describes different methods of solar energy storage including sensible heat storage using materials like water, rocks, and concrete. Latent heat storage using phase change is also discussed. Thermal energy storage techniques like solar ponds are explained. Applications of solar energy covered include solar heating/cooling, distillation, drying, and photovoltaic energy conversion. Basic elements of a solar water heating system and different types including natural circulation and forced circulation models are outlined.
Solar Energy Storage:-
Methods of storage such as sensible, latent heat &
thermochemical storage,selection of method of storage,
properties of storage materials and different arrangements of
storages
A flywheel, in essence is a mechanical battery - simply a mass rotating about an axis.Flywheels store energy mechanically in the form of kinetic energy.They take an electrical input to accelerate the rotor up to speed by using the built-in motor, and return the electrical energy by using this same motor as a generator.Flywheels are one of the most promising technologies for replacing conventional lead acid batteries as energy storage systems.
Oro551 res- unit 1 - environmental impact of solar energykarthi keyan
This document discusses the environmental impacts of solar power generation. It addresses land use and habitat loss, noting that photovoltaic solar requires 3.5 to 10 acres per megawatt while concentrating solar thermal requires 4 to 17 acres per megawatt. Water use is also discussed, stating that concentrating solar thermal requires around 2,000 liters of water per megawatt, while photovoltaic solar requires around 20,000 liters of water per megawatt for regular cleaning. Finally, the document covers the use of hazardous materials in manufacturing, such as chemicals used to clean semiconductor surfaces for photovoltaic cells and toxic materials contained in thin film technologies that must be properly handled and disposed.
Tidal energy harnesses the potential energy of ocean tides and converts it into electricity. There are three main types of tidal generators: tidal stream generators, dynamic tidal power systems, and tidal barrages. Tidal barrages capture potential energy by trapping water behind barriers that is then released through turbines. While large amounts of power can be generated with minimal emissions, tidal barrages require high upfront costs and can significantly impact marine environments and sediment flows. The Gulf of Kutch and Gulf of Cambay in India have significant tidal ranges and potential for tidal energy development.
This document provides an overview of superconducting magnetic energy storage (SMES). It discusses the history and components of SMES systems, including superconducting coils, power conditioning systems, cryogenic units, and control systems. The operating principle is described, where energy is stored in the magnetic field created by direct current flowing through the superconducting coil. Applications include providing stability and power quality for the electric grid. Challenges include the large scale needed and cryogenic cooling required to maintain superconductivity.
Oro551 res- unit 1 - the solar energy optionkarthi keyan
This document discusses renewable energy sources with a focus on solar energy options. It provides information on different solar energy technologies including photovoltaic systems, solar water heating, solar thermal power plants, solar cookers, solar bikes, solar pumps, and solar power towers. For each technology, it describes its basic components and functioning. The document aims to educate about harnessing solar energy for electricity generation and other applications.
India's electricity sector has an installed capacity of 250 GW as of 2014. Thermal power makes up the majority at 87.5% of capacity, while renewable sources like hydro, solar and wind make up the remaining 12.5%. Coal fired plants account for 59% of India's installed capacity. India faces challenges in meeting rising demand due to insufficient domestic coal reserves and transmission and distribution losses. However, the government is promoting renewable energy and aims to increase nuclear and hydro power generation to meet its growing needs in a sustainable manner.
This document outlines osmotic power, which generates energy from the difference in salt concentration between seawater and freshwater. It works via pressure retarded osmosis (PRO) where freshwater naturally moves through a semi-permeable membrane into higher salinity seawater, increasing pressure. This pressure powers a turbine to generate electricity. Key components include membrane modules to separate the waters, filters to optimize membrane performance, and a turbine/generator. Experimental results showed a prototype achieving over 90% efficiency and the potential to scale installations by adding more membrane modules.
Ocean Thermal Energy Conversion SystemsVedaNarayana4
In this presentation I'm explaining about Closed and Open cycle OTEC systems with detailed explanation and advantages and disadvantages of OTEC systems.
This document discusses ocean thermal energy conversion (OTEC) cycles and their working principles. There are two main types of OTEC cycles - closed cycles that use working fluids like ammonia, and open cycles that use seawater. Closed cycles involve vaporizing a working fluid using warm surface water and condensing it back using cold deep water to drive a turbine. Open cycles use flash evaporation of warm surface water directly to produce steam to drive a turbine, with the exhaust steam condensed back using cold deep water. India has potential for 180GW of OTEC and has commissioned its first 1MW OTEC plant off Tuticorin port called Sagar Shakti.
Ocean thermal energy conversion (OTEC) harnesses the temperature difference between shallow and deep ocean waters to generate electricity. It uses a heat engine placed between the warm surface waters and cold deep waters to convert thermal energy into kinetic energy. OTEC has the potential to generate large amounts of renewable energy from the ocean but faces challenges from its low efficiency and high costs. Different cycles have been proposed including open, closed, and hybrid cycles to optimize the design and performance of OTEC plants.
Ocean thermal energy conversion (OTEC) harnesses the temperature difference between warm surface waters and cold deep ocean waters to generate electricity. The tropical oceans have about a 20°C difference between these waters that can power an OTEC system. OTEC systems pump warm surface water and cold deep water through a heat exchanger and turbine to produce electricity with minimal environmental impact. While capital costs are high currently, OTEC has potential for baseload renewable power due to the constant solar heating of ocean waters.
Ocean Thermal Energy Conversion (OTEC) utilizes the temperature difference between warm tropical surface waters and cooler deep ocean waters to operate a heat engine and produce energy. It works similarly to a refrigerator in reverse by using warm surface water to vaporize a working fluid to drive a turbine that generates electricity. The working fluid is then condensed from a vapor to a liquid using cold water pumped up from deep in the ocean. OTEC is an efficient, clean process that could help reduce dependence on foreign oil imports. Its potential is estimated at 1013 Watts of continuous base load power generation globally.
1. Ocean thermal energy conversion (OTEC) is a process that generates electricity using the temperature difference between warm surface ocean water and cold deep sea water.
2. OTEC utilizes this temperature difference to power a turbine and generate electricity via a closed-loop or open-loop system. In a closed-loop system, warm water heats a fluid that powers a turbine, while in an open-loop system the warm water itself powers the turbine.
3. OTEC has potential applications for electricity generation, desalination, refrigeration, and mineral extraction. It is a renewable source of energy but high capital costs have prevented widespread commercial use.
Ocean thermal energy conversion utilizes the temperature difference between warm surface waters and cooler deep ocean waters to generate electricity. It has the potential to be a renewable source of energy. The document discusses the types of ocean energy including ocean thermal energy. It describes the components and working of open and closed cycle OTEC systems and their applications in producing electricity, freshwater, refrigeration, and mineral extraction. The efficiency of OTEC plants depends on the temperature difference between the source and sink waters. While renewable, OTEC also has disadvantages such as high capital costs and low conversion efficiency.
This document discusses various methods of ocean energy conversion including ocean thermal energy conversion (OTEC), tidal energy, and wave energy. It provides a brief history of OTEC development and describes the working principles of closed-cycle and open-cycle OTEC systems. Advantages include being environmentally friendly and providing a constant energy source, while disadvantages include high capital costs and potential environmental impacts. Applications include desalination and aquaculture. Tidal energy uses barrages and basins to capture potential and kinetic energy from tidal fluctuations, while wave energy technologies include oscillating water columns and floating devices.
Ocean Thermal Energy Conversion (OTEC) is a process that uses the temperature difference between warm surface ocean water and cold deep sea water to produce electricity. There are three types of OTEC systems - closed loop, open loop, and hybrid. OTEC utilizes the large temperature difference between warm surface waters and cold deep ocean water to power a turbine and generate electricity. It has the potential to be a renewable source of clean energy without emissions. However, OTEC plants are currently more expensive to build than fossil fuel plants.
Explore the dynamic world of #PowerPlants with this comprehensive presentation. Delve into the various types of power plants, including fossil fuel, renewable energy, and nuclear. Gain insights into the processes that generate electricity to power our modern world. From turbines to transformers, understand the key components that make these plants efficient sources of energy. Discover the environmental considerations and technological advancements shaping the future of power generation.
Ocean thermal energy conversion (OTEC) is a renewable energy technology that generates electricity by exploiting the temperature difference between warm surface waters and cold deep waters in tropical oceans. OTEC systems use a heat engine to convert this thermal energy into mechanical power and then electricity. There are two main types of OTEC systems - closed-cycle systems that use a working fluid like ammonia, and open-cycle systems that use seawater directly. While OTEC is a clean energy source that can provide baseload power, its development has been limited by high costs compared to fossil fuels. However, as fossil fuel reserves decline, OTEC may become an important future energy option that can also produce fresh water.
The document discusses Ocean Thermal Energy Conversion (OTEC), including its history, types such as closed-cycle and open-cycle systems, advantages like producing fresh water and reducing dependence on fossil fuels, and disadvantages like high costs. It provides details on how OTEC works using the temperature difference between cold deep ocean water and warm surface water to run a power cycle and generate electricity. The document also covers tidal power generation using tidal turbines, barrages, and fences.
Ocean Thermal Energy Conversion (OTEC) is a marine renewable energy technology that converts solar radiation to electrical power by the temperature difference between the deep cold ocean water and warm tropical surface water.
The Kota Super Thermal Power Station (KSTPS) in Rajasthan, India has a total installed capacity of 1240MW. It was established in 1983 on the banks of the Chambal River near Kota. The document then describes the basic processes and components involved in a coal-fired thermal power plant, including coal handling, pulverization, combustion in the boiler, steam generation, superheating, power generation in the turbine and alternator, condensing spent steam, and ash handling. It emphasizes the importance of transitioning to more sustainable energy sources due to finite fossil fuel reserves.
Effect of temperature on the performance of a closed-cycle ocean thermal ener...NUR FARAH
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. OTEC pump large quantities of deep cold seawater and surface seawater to run a power cycle and produce electricity. There are 3 types of OTEC systems which are closed-cycle, open-cycle, and hybrid cycle. Solar thermal collector is used to heat up a fluid. Generally for water or a mixture of glycol and water depending of the configuration of the solar thermal system. The principles are to capture solar radiation, converting it to useful heat and transferring it to a working fluid.
OTEC, or Ocean Thermal Energy Conversion, is a technology that generates electricity by exploiting the temperature differences between warm surface waters and colder deep waters in tropical oceans. There are three main types of OTEC systems - floating, land-based, and self-mounted. OTEC plants use the ocean's thermal gradient to evaporate a working fluid like ammonia in a heat exchanger, which then drives a turbine that generates electricity. While OTEC is not yet economically viable at scale, it has advantages of being renewable, low maintenance, and producing fresh water and minerals as byproducts while emitting very little carbon. Further development is needed to minimize environmental impacts and reduce costs to compete with other power sources.
The document provides information about geothermal power plants. It discusses that geothermal energy is thermal energy generated and stored in the earth from radioactive decay and the planet's formation. Geothermal power plants use steam from hot water underground to generate electricity without raw materials and with little environmental impact. Locations suitable for geothermal energy have active volcanoes or thin earth crust allowing heat to escape. Electricity is produced through direct use of steam or using steam to power turbines connected to generators. Geothermal energy can also be used directly for heating and in applications like greenhouses, agriculture and industry.
Ocean thermal energy conversion (OTEC) uses the temperature difference between warm surface waters and cold deep ocean waters to drive a power-producing cycle. In OTEC, warm surface water vaporizes a working fluid like ammonia that spins a turbine to generate electricity. The vapor is then cooled and condensed back into a liquid using cold deep seawater, allowing the fluid to be reused continuously. OTEC systems can also produce fresh water and support aquaculture. While experimental OTEC plants achieved limited success in the past, scientists are developing improved designs for closed-cycle and hybrid systems that could enable commercial OTEC plants producing 100 MW of electricity in the future.
This report summarizes Eslam El-Badrawy Ahmed's visit to the Teknecik power plant in Cyprus. It describes the main components of the power plant including the boiler, turbine, heat exchangers, super heater, condenser, electrical generator, cooling system, transformers, fuel supply system, and lubricating system. The report provides details on the operation and purpose of each component in 2-3 sentences. It concludes that the visit provided valuable practical experience for mechanical engineering students.
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2. INTRODUCTION
Ocean Thermal Energy Conversion (OTEC) is an energy technology that converts solar
radiation into electric power.
OTEC systems use the ocean’s natural thermal gradient, consequently the temperature
difference between the warm surface water and the cold deep water below 600 meters by
about 20 0C, an OTEC system can produce a significant amount of power.
Warm water is collected on the surface of the tropical ocean and pumped by a warm
water pump.
The water is pumped through the boiler, where some of the water is used to heat the
working fluid, usually propane or some similar material.
If it is cooler you can use a material with a lower boiling point like ammonia (-33 °C). The
vapour expands through a turbine which is coupled to a generator that generates electric
power.
Cold water from the bottom is pumped through the condensers, where the vapour returns
to the liquid state. The fluid is pumped back into the boiler.
3. Types of Energy Conversion Systems
There are three types of OTEC designs:
1. Closed Cycle OTEC System
2. Open Cycle OTEC System
3. Hybrid Cycle OTEC System.
Among these three systems, closed and open cycle systems are different .
Hybrid cycle is a combination of both closed and open cycle systems.
5. Closed cycle is also called as Anderson cycle.
The components of a closed cycle system are heat exchangers, turbo generator, feed pump.
Closed cycle system uses fluid with a low boiling point, such as ammonia (NH3), to power
a turbine to generate electricity.
Warm surface sea water is pumped through a heat exchanger to vaporize the fluid.
The expanding vapour turns the turbo-generator and generates electricity.
Cold water is pumped through a second heat exchanger i.e. condenser, it condenses the
vapour into a liquid.
The condensed liquid is pressurised with the help of feed pump and is send into the
evaporator.
Due to the repeatability of the same working fluid, whose flow path and thermodynamic
process represents closed loop, hence it is named as closed cycle.
7. Open cycle system is also called as Claude cycle.
Open-cycle OTEC uses warm surface water directly to make electricity.
The warm sea water from surface is sent into the Deaerator. The function of deaerator to
remove the dissolved gases from the fluid and the non-condensable gases is send into the
atmosphere,
The condensable fluid is sent into the flash evaporator to convert it into steam. The warm
water discharges away from the evaporator.
The low pressure steam from the evaporator flows through the turbine and hits the blades
to rotate. The turbine shaft is connected to a generator which produces electricity.
The exhaust steam from the turbine is transferred directly to the condenser.
The cold water from the deeper layers of ocean is taken to the condenser and is sprinkled to
convert the exhaust steam into a liquid.
The liquid is sent to the deeper layers of ocean an it is recycled.
8. ADVANTAGES AND DISADVANTAGES OF OTEC
ADVANTAGES DISADVANTAGES
Cleaner, No air pollution. More expensive than power from fossil
fuels.
It can produce massive amount of electrical
energy.
Electricity must also be produced to land.
Helps in producing fuels such as hydrogen,
ammonia and methanol.
OTEC plants must be located where a
difference of about 200C occurs year
around.
Has the potential to meet all the world’s
energy needs
Less efficient than coal