Wave Energy
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Waves are generated by wind blowing over the ocean, containing large amounts of energy that can be extracted by wave power devices. One such device is the oscillating water column, which uses the up and down motion of waves in a chamber to force air through a turbine connected to a generator, producing electricity from the renewable and sustainable wave energy without producing waste or requiring fuel. However, wave power is unpredictable and devices must be located appropriately and built to withstand rough conditions.
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This document summarizes different aspects of wave energy technology. It describes how wave energy works by capturing the energy of ocean surface waves. It then discusses the history of wave energy technology and some prominent pioneers. The document goes on to explain different types of wave energy conversion devices classified by their installation site, principle of operation, and energy capture system. Specific devices like overtopping, oscillating water columns, point absorber buoys, and surface attenuators are described in detail. It concludes by noting that while wave energy systems are currently small, technologies are developing to harness more power from ocean waves.
Ocean & geothermal energy
This document provides an overview of ocean and geothermal energy. It describes three types of ocean thermal energy conversion (OTEC) - closed loop, open loop, and hybrid loop. It also discusses wave, tidal, and geothermal energy. For geothermal, it explains the three main types of power plants - dry steam, flash steam, and binary cycle. It outlines some key advantages and disadvantages of these renewable energy sources. The conclusion states that OTEC and geothermal energy have the potential to provide clean, reliable energy while reducing emissions.
Grid interfaced tidal power plants
This document provides an overview of grid interfaced tidal power plants. It discusses the history of tidal power usage dating back to tidal mills in medieval times. The advantages of tidal power include being clean, non-polluting, and producing a constant, predictable supply of electricity. Disadvantages include tidal power only being economically feasible in locations with a tidal range of over 5 meters and potential environmental impacts. The document describes how tides are formed by the gravitational pull of the moon and sun. It explains the process of harnessing tidal power using tidal barrages, which involve constructing a dam across an estuary with sluice gates and turbines.
Energy Resources.
This document discusses different types of energy resources used to generate electrical power. It provides introductions and explanations of how fossil fuels (coal, oil, gas), nuclear power, solar power, wind power, tidal power, hydroelectric power, geothermal power, and biofuels work. For each type, it outlines key advantages and disadvantages, such as fossil fuels being non-renewable but able to generate large amounts of electricity cheaply, and solar power being renewable but expensive to implement. The document distinguishes between energy resources and types of energy.
Energy Resources
This document discusses different types of energy resources used to generate electrical power. It provides introductions and explanations of how fossil fuels (coal, oil, gas), nuclear power, solar power, wind power, tidal power, hydroelectric power, geothermal power, and biofuels work. For each type, it outlines key advantages and disadvantages, such as fossil fuels being non-renewable but able to generate large amounts of electricity cheaply, and solar power being renewable but expensive to implement. The document distinguishes between energy resources and types of energy.
Wind and wave energy
Wind energy is a form of solar energy generated from wind flow patterns caused by uneven heating of the atmosphere from the sun and rotation of the earth. Modern wind turbines capture this kinetic energy and convert it into electrical energy through a multi-step process involving the turbine blades, gearbox, generator, and transformer. Similarly, wave energy harnesses the kinetic energy of ocean waves using underwater turbines connected to generators to produce electricity. This renewable energy can power homes in the same way as energy from fossil fuel power plants by feeding into the electrical grid.
A house powered by wind and wave energy
Wind energy is a form of solar energy generated from wind flow patterns caused by uneven heating of the atmosphere from the sun and rotation of the earth. Modern wind turbines capture this kinetic energy and convert it into electrical energy through rotation of blades connected to a generator. Similarly, wave energy is generated from the kinetic energy of ocean waves and is captured using underwater turbines connected to generators, working in a comparable process to wind turbines. Both wind and wave energy can power homes after being transformed into electrical energy at a power plant and sent through power lines.
Energy Resources (Electricity)
This document discusses different types of energy resources used to generate electrical power. It provides introductions and explanations of how fossil fuels (coal, oil, gas), nuclear power, solar power, wind power, tidal power, hydroelectric power, geothermal power, and biofuels work. For each type, it outlines key advantages and disadvantages, such as fossil fuels being non-renewable but able to generate large amounts of electricity, and solar power being renewable but not working at night. The document distinguishes between energy resources, which are ways of obtaining energy, versus types of energy.
Energy resources
This document provides an overview of different types of energy sources, including both renewable and non-renewable resources. It discusses various non-renewable sources such as fossil fuels including coal, oil and natural gas. It also examines renewable sources including solar, wind, hydroelectric, geothermal, tidal and biomass. For each energy source, it outlines the basic concept, advantages and disadvantages. The key message is that different energy sources have trade-offs between factors like cost, environmental impact, reliability and sustainability.
OTEC
The document discusses different types of ocean energy technologies, including ocean thermal energy conversion (OTEC), wave energy, and tidal power. It describes the open and closed cycles used in OTEC that utilize temperature differences between warm surface water and cold deep water. For wave energy, it outlines how wind creates waves and discusses technologies like oscillating water columns that use wave motion to drive turbines. Tidal power is explained as converting tidal ranges and currents into electricity using technologies like tidal barrages and tidal current turbines.
M.Ed EVS Topic-Energy sources
This document discusses various energy sources including fossil fuels like oil, natural gas and coal which are non-renewable. It also discusses renewable energy sources like hydro, solar, wind, geothermal, tidal, and nuclear power. As resources become depleted due to increasing demand and use, they will become more expensive to obtain. This will in turn increase costs of goods that rely on those resources. The document provides details on how different renewable energy sources work and their advantages and disadvantages.
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Wave Energy
- 2. •Waves are made when wind blows over the ocean • There are a lot of energy in waves around the world • Wave power devices extract the energy from the waves’ motion • Currently doesn’t supply any Australian power As the energy passes through the water, the water moves in a circular motion.
- 3. The oscillating water column is a form of the terminator device. 1.Water enters through opening and into chamber with air trapped above. 2.The motion of the waves moves the water up and down in the chamber. 3.The trapped air is forced out through an opening, leading to a turbine. 4.The turbine is connected to a generator. The air spins the turbine and that spins the generator.
- 4. • Renewable energy source • No waste produced • No fuel needed for it to run • Not expensive to operate and maintain • No human or environmental risks • Unpredictable • Needs to be built in a suitable location • Noisy, but so are waves • Must be built to withstand rough weather • Might be considered an eyesore