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the amount of energy a hydropower plant produces depends on two factors:
1-how far the water falls
2-Amount of water flowing in the river.
Exemple
From talking to person who operates the dam in our area, we learn that the dam is 10 feet high, so the water falls 10 feet.We contact the United States Geological survey, the agency in the U.S. that measures river flowing, and learn that the average amounr of wather flowing in our river is 500 cubic feet per second.For the dam in our area lets say we buy a turbine and generator with an efficiency of 80%. Formula
Power=(height of dam).(river flow).(Efficiency)/11.8
Power: the electric power in kilowatts height of dam :the distance that the water falls measured in feet
river flow: the amount of water flowing in the river measured in cubic feet per second.
efficiency:how well the turbine and generator convert the power of falling water into electric power. for older ,poorly maintained hydroplants this might be 60%(0.60) while newer hydroplants this might be as high as 90%(0.90).
11.8: convert units of feet and second into kilowatts then the powe for our dam will be.
Power=(10 feet).(500 cubic feet per second).(0.80)/11.8
Power=339 kilowatts
and the energy in a year will be
Energy=power.(time)
energy=(339 kilowatts).(24 hours per day).(365 days per year)
energy=2969640 kilowatts.hours
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∙ 16y ago
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Hydroelectric energy can be generated through a run-of-the-river system and through a storage systemdescribe each system?
It is true.
Does nuclear energy produce a lot of waste?
Yes; the average nuclear power plant yields about 3 tons of radioactive waste each year.
What is the energy transformation of thermal power plant?
Normally we refer to a power station as a facility where electricity is produced. This answer will be restricted to that instance though logically one may conceptualize power stations that produce other forms of energy. There are several different types of energy that feed into power stations to produce electricity. Nuclear, water, coal, and other fossil fuels provide the majority of energy for power stations now. There may be other sources such as wind energy, solar, geothermal energy or tidal energy. In the future is it hoped that plasma fusion will be a source of energy. The actual transformation process of incoming energy to electricity takes several forms. In the most common power station fuel is burned to produce heat energy that is changed to mechanical energy that turns an electrical generator to produce electrical energy. This is the case for coal and other fossil fuel power plants as well as for nuclear power, though the engineering details are different in each. Typically, heat is used to create steam and a steam engine is connected to a mechanical device that then turns an electrical generator. Geothermal energy employs the very high temperatures beneath the surface of the Earth to generate power, usually by heating water to steam and then connecting that to a steam engine driven electrical generator. There is also a process called the thermoelectric effect but it has not found practical use in power generation. In hydroelectric power facilities, there is no steam but rather the flow of water turns a turbine that transmits the mechanical force that turns the electrical generator. The same applies to wind power where the mechanical device that converts movement of wind to drive the generator is basically the set of blades of the wind turbine and possible a gearing arrangement. In tidal power generators, the flow of ocean water naturally occurring with the tides is funneled through a mechanism that pushes the water through a turbine much like the turbines used in the more common hydroelectric power stations. Solar power can take two forms, one which takes the heat from the sun to produce steam and then power a generator. The other form of solar power is different because there is typically no mechanical process taking place. Sunlight shines on a solar panel and the materials of the panel convert the light directly to electrical energy. (That electrical energy is DC and is usually converted to AC.) Finally, there is the case of plasma fusion energy. If plasma fusion energy evolves to a practical level, the source of the energy will be hydrogen and the fusion process will produce thermal (heat) energy. That thermal energy will probably be converted mechanical energy through a steam engine of some sort and then the generation process is the same as any other steam driven turbine generator. These are the major types of power stations. Not all are equally efficient and the technology is evolving to make them better. Some types that are not practical now may become practical in the future.
Do solar cells produce a lot of energy?
Each one, no. But an array has multiple cells.
What type of energy does back and forth movement produce?
friction, or the force of energy which occurs when two or more objects rub against each other.
Why do power plants rely on nuclear Energy?
To produce energy more than any other source can produce. A handful of Uranium can produce enough energy as the same as 4000 Train Load of coal [Given that each train load has around 15,000 Tons of Coal.]
Hydroelectric energy can be generated through a run-of-the-river system and through a storage systemdescribe each system?
It is true.
Does nuclear energy produce a lot of waste?
Yes; the average nuclear power plant yields about 3 tons of radioactive waste each year.
What is the energy transformation of thermal power plant?
Normally we refer to a power station as a facility where electricity is produced. This answer will be restricted to that instance though logically one may conceptualize power stations that produce other forms of energy. There are several different types of energy that feed into power stations to produce electricity. Nuclear, water, coal, and other fossil fuels provide the majority of energy for power stations now. There may be other sources such as wind energy, solar, geothermal energy or tidal energy. In the future is it hoped that plasma fusion will be a source of energy. The actual transformation process of incoming energy to electricity takes several forms. In the most common power station fuel is burned to produce heat energy that is changed to mechanical energy that turns an electrical generator to produce electrical energy. This is the case for coal and other fossil fuel power plants as well as for nuclear power, though the engineering details are different in each. Typically, heat is used to create steam and a steam engine is connected to a mechanical device that then turns an electrical generator. Geothermal energy employs the very high temperatures beneath the surface of the Earth to generate power, usually by heating water to steam and then connecting that to a steam engine driven electrical generator. There is also a process called the thermoelectric effect but it has not found practical use in power generation. In hydroelectric power facilities, there is no steam but rather the flow of water turns a turbine that transmits the mechanical force that turns the electrical generator. The same applies to wind power where the mechanical device that converts movement of wind to drive the generator is basically the set of blades of the wind turbine and possible a gearing arrangement. In tidal power generators, the flow of ocean water naturally occurring with the tides is funneled through a mechanism that pushes the water through a turbine much like the turbines used in the more common hydroelectric power stations. Solar power can take two forms, one which takes the heat from the sun to produce steam and then power a generator. The other form of solar power is different because there is typically no mechanical process taking place. Sunlight shines on a solar panel and the materials of the panel convert the light directly to electrical energy. (That electrical energy is DC and is usually converted to AC.) Finally, there is the case of plasma fusion energy. If plasma fusion energy evolves to a practical level, the source of the energy will be hydrogen and the fusion process will produce thermal (heat) energy. That thermal energy will probably be converted mechanical energy through a steam engine of some sort and then the generation process is the same as any other steam driven turbine generator. These are the major types of power stations. Not all are equally efficient and the technology is evolving to make them better. Some types that are not practical now may become practical in the future.
What are some renewable energy sources?
The main renewable sources of energy to generate electricity are:Hydro-power (use of water from rivers, dams, tides and ocean waves)Wind energy (using wind turbines)Solar power (using the power of the sun to heat water or produce electricity)Geothermal (using the heat deep under the earth's crust)Ocean Thermal (using surface heat and deep cold water)Biofuel (producing ethanol from organic material like corn and sugar cane husks)See the Related Questions links for more information about each of these methods of producing energy.
When do the transition from fossil fuels to other energy sources occur?
Fossil fuels will some day run out, so the only means of energy will be from renewable sources. The use of biofuels is rapidly growing, but petroleum is source for most of the fuel for our cars. So, we are transitioning, but not very fast. Renewable energy sources have been significant contributors to our energy needs for decades, primarily in hydroelectric power from dams. The US governmental agencies are encouraging people to use energy efficiently and increase the supply of energy from renewable sources. See related link. You can also find information on each of the renewable energy sources (wind, hydroelectric, solar and biofuels) by searching the internet.
What are 3 renewable sources of energy and an example of each?
Wind turbines take the mechanical energy of wind to generate electricity. Solar cells and solar collectors take the electromagnetic energy in sunlight to generate electrical energy or generate thermal energy to heat a substance. Hydroelectric facilities use the power of water under the influence of gravity to generate mechanical energy and (often) electric power. Let's throw in the idea that if we plumb (put pipes into) volcanic or thermal vents, we can collect thermal energy from the core of the earth. This can be used directly to heat things or to generate mechanical energy to create electricity.
How much energy do Americans waste each year?
123,456,789,100 is how much Americans produce
How much energy does Niagara Falls produce each year?
2.4 million kilowats
Do solar cells produce a lot of energy?
Each one, no. But an array has multiple cells.
How much energy kwh does Hoover dam produce each year?
4,000GWh that's 4,000,000,000kWh
How does engine produce heat?
From the result of combustion during the power stroke of each cylinder.
