Rd saving our world from fossil fuels
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The document discusses several alternative energy resources including hydroelectric, solar, geothermal, biofuels, and wind power. Hydroelectric energy harnesses the power of moving water using turbines, often located in dams, to generate electricity. Geothermal energy involves drilling deep into the earth to access heat from below the surface and using it to power turbines. Biofuels are renewable transportation fuels like ethanol that can be used instead of gasoline. Wind energy captures the kinetic energy of wind with turbines to produce electricity.
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The document discusses several alternative energy sources:
1) Hydrogen can power cars through fuel cells, producing only water as a byproduct.
2) Geothermal energy harnesses the Earth's natural underground heat through steam to power turbines.
3) Wind power uses turbines to convert kinetic energy from the wind into electricity. Large wind farms are often built.
4) Solar panels and photovoltaic cells capture the sun's energy and convert it to heat or electricity.
Geothermal energy
Geothermal energy is primarily used in China, where 20% of the world's geothermal energy is utilized, and Portugal's Azores islands. In the Azores, geothermal energy is used to power 5 power plants and heat pans of food buried in the ground. Setting up a home or large power plant using geothermal energy has initial costs, but operating costs are lower than fossil fuels. Geothermal energy is a renewable and clean source that avoids pollution and depletion concerns of fossil fuels, though high initial drilling costs are a potential drawback for some. Geothermal plants work by pumping underground hot water or steam through turbines to generate electricity.
Energy Sources
This document provides information on various sources of energy including fossil fuels, renewable resources, hydroelectric, wind, solar, tidal, nuclear, and geothermal energy. It discusses the advantages and disadvantages of each source. For example, it notes that hydroelectric power is reliable and produces no emissions but dams are expensive to build and can impact the environment. Wind power is free and produces no pollution but the wind is unpredictable and wind farms may be considered unsightly.
Energy Sources Andie
This document provides information on various energy resources including fossil fuels, renewable resources, and alternative energy sources. It discusses electricity generation from coal, oil, natural gas, as well as renewable sources like hydroelectric, wind, solar, tidal, nuclear, geothermal, and biomass power. Advantages and disadvantages are listed for each type of energy resource.
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Geothermal Energy
Geothermal energy is a renewable energy source that is obtained from the internal heat of the Earth through volcanoes, hot springs, fumaroles and geysers. The process involves using a heat pump and system of pipes buried underground to circulate water and exchange heat with the ground. Geothermal equipment consists of a heat pump, polythene pipes, and a hydraulic pump to circulate the underground water and extract heat energy.
My passion project by john
This document discusses several alternative and futuristic energy sources. It begins by defining alternative energy as energy sources that can replace traditional fossil fuels and have low environmental impact. The document then explores why alternative energy is the author's passion due to always being fascinated by futuristic energy solutions. It notes that alternative energy is needed because fossil fuels will run out and cause environmental damage. The rest of the document summarizes several potential alternative energy sources including algae biofuel, hydrogen fusion, fuel cells, and pelletier generators. It also proposes ideas to improve wind turbines and safely burn fossil fuels.
Chapter8
This document discusses fuel-less engines that draw energy from the environment rather than burning fuel. It provides examples of how sailing boats, hydroelectric power, and windmills get their power from the sun without directly burning a fuel. It then describes several engine designs that operate using compressed air, including ones from Bob Neal, Scott Robertson, and Leroy Rogers. These engines recharge the compressed air supply using heat from the surrounding air and without directly burning a fuel.
Trabajo tecnologias - Energy
This 3-sentence summary provides the key information about energy from the document:
Energy can come from various sources and takes different forms. Common energy sources include non-renewable sources like coal, petroleum, natural gas, and nuclear energy which are found underground, as well as renewable sources like solar, wind, hydropower and biomass which do not deplete. Different types of power stations are used to extract energy from these sources and transform it into usable forms like electricity and heat.
Alternative sources of energy (comenius)
The document defines alternative/clean/sustainable energies as those that do not pollute the atmosphere and have low production costs. It lists the main alternative energies according to EU directives as hydroelectric, tidal, geothermal, solar, wind, biomass, and biogas energies. Hydroelectric energy harnesses the power of rivers and dams, with the earliest dam built by ancient Egyptians. Hydroelectric power plants convert potential energy from water into electricity using turbines and generators. Italy produces 15% of its total energy from hydroelectric. Tidal energy uses the tides to power turbines and generators in large basins, but the structures are expensive to build. Geothermal energy harnesses heat from within the Earth through
Source of energy class 10 physics notes
This document provides an overview of different sources of energy, including renewable and non-renewable sources. It discusses conventional sources like fossil fuels (coal, petroleum), as well as non-conventional sources like solar, wind, hydropower, nuclear and geothermal energy. Various mechanisms for harnessing these energy sources are described, such as using turbines to convert kinetic energy from moving water or wind into electrical energy. Both traditional and modern technologies are covered, with examples like solar cookers and solar panels for utilizing solar energy.
Energy from Volcanoes
Energy from Volcanoes ppt. is the next topic/ lesson from grade 9 LM Module 1 Quarter 3. The presentation is a discussion guide for teachers about geothermal energy and gives video suggestions in order for the students to understand the lesson well especially in showing how geothermal energy is harnessed. Feedbacks, reactions and suggestions are very much welcomed. Thanks!
Geothermal energy
This document provides an overview of geothermal energy. It begins by defining geothermal energy as heat from within the Earth, generated from radioactive decay deep underground. This heat can be captured using hydrothermal reservoirs or enhanced geothermal systems. Geothermal energy is then harnessed by tapping into naturally occurring hydrothermal systems, where hot water rises to the surface and its steam is used to generate electricity. Direct uses of geothermal heat include heating buildings and greenhouses. The document discusses advantages such as being renewable and pollution-free, and disadvantages including high initial costs. It concludes by discussing the future potential of geothermal energy.
Alternative sources of_energy (1)
This document discusses various alternative sources of energy that can be used instead of non-renewable energy sources. It defines alternative energy as sources that can be sustained for future generations. Some key alternative energy sources mentioned are solar energy, which is collected from sunlight; wind energy, which uses turbines to convert wind power to electricity; hydro energy, which uses water power from dams; biomass energy, from organic waste; and geothermal energy, which taps into heat from within the earth. Brief descriptions are provided for each energy source and how it can be harnessed as a renewable alternative to fossil fuels.
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Rd saving our world from fossil fuels
- 1. A Power Point about alternative resources By: R.D.
- 2. Hydroelectric energy is when a turbine is spun by water to produce electricity. Hydroelectric Turbines are usually found in dams. Here is a picture of a water turbine
- 3. Hydroelectric energy is used to save our Earth and money. So that’s Hydroelectric energy. Moving on…
- 4. Solar energy iS when Solar PanelS abSorb Solar energy and turn it into electricity.
- 5. Here’s a you tube video about Solar Energy http://www.youtube.com/watch? v=5S7xDxrHI5s
- 6. Geothermal energy means when a drill digs deep enough into the ground and then injects water into the ground. Then with the intense heat the water turns into steam. So the steam comes up and turn the turbines to produce electricity. Who knows maybe your local arcade is powered by geothermal energy.
- 7. Here’s a video about Geothermal. http://www.youtube.com/watch? v=NLfs4ip1Luc
- 8. Biofuels are fuels that power ways of transportation with renewable ways. Lamborghini predicts that the next Lamborghini model will be powered by ethanol.
- 9. Here’s a video about biofuels. http://www.youtube.com/watch? v=HrBUiTITRhk
- 10. Wind energy is when wind turns the turbine to produce electricity.
- 11. Here’s a video about wind power http://www.youtube.com/watch? v=tsZITSeQFR0