Three Clean Methods of Generating Electric Power
Author: Dushan Vaithilingam
With an increasing focus on fossil fuels as a potential source of global warming, many governments are looking to clean methods of generating the electric power their counties need. Growing populations need not only clean water, food and shelter; electricity has become a basic need too. Without electrical power, our lives would change dramatically for the worse. Our entire modern way of life depends upon the generation of electric power. The three most commonly cited forms of clean energy are nuclear, wind and solar.
Nuclear Power. Electricity generated at a nuclear power plant generates very little in the way of carbon emissions. The securely contained nuclear core heats water through an ongoing fission chain reaction. The steam then in turn moves turbines, generating power. Detractors point out that when a nuclear core has fulfilled its useful lifespan, there remains the issue of dealing with the radioactive waste.
Solar Power. Solar power is generated through photovoltaic cells using direct sunlight, or indirectly by concentrating solar power. With improvements over the last 20 years or so, PV cells are more efficient in converting sunlight into solar power. It is estimated that if only 4% of the world’s desserts were to house solar powered electrical plants, the electrical needs of the world could be met. The key difficulties at this point are that no industry standard has yet emerged for PV cells and the upfront cost of installing these plants.
Wind Power. Wind generated electricity is a rising star. The use of giant wind turbines to generate electrical power has doubled in the last three years; still it currently produces about 2% of the world’s total. Both large and small turbines can be used to supply areas with power, but the intermittent nature of wind power requires a second method of generation for continuous supply.
Article Source: http://www.articlesbase.com/technology-articles/three-clean-methods-of-generating-electric-power-1188938.html
About the Author
To find out more about Electric Power, take a moment and visit us at http://www.technologybriefs.info/
how can we generate electricity with water ?
i have seen it in swades movie and wants to try out the same in my home town.
How much mirror would I need to boil enough water to generate electricity?
I’m wondering what it would take to generate electricity with solar power but rather than use panels, I want to use mirrors to boil water and turn a turbine. Say I wanted to turn a typical car alternator/generator with steam. I set up mirrors that shoot light into a collector, boil the water, spin turbine, turn generator. This seems possible and simple in concept. What kind of mirror footprint would I need. Would the whole yard be filled with 3×3 mirrors with a 10′ tower? Thoughts?
Where do I get a turbine?
can smoke released by industries or any other source be used for generating electricity ?
Just like how we use coal to heat up water and generate electricity through steam..cant we do the same with smoke released by industries?
River Dam generates electricity with water taken from a depth of 200 m and with an average flow rate of 600 m3
a) Calculate the power in this flow. Note that the velocity and height of the water are not changed appreciably by the generators, and the pressure at the exit point is at atmospheric level. Take the density of water to be 1000 kg/m3.
I know the answer to this is 1176 MW.
b.)What is the speed of the water at the exit point?
c.)What is the radius of the exit hole in the dam?
How do I generate electricity with water?
ha. im doing this right now.
b. V = squareroot(2gy)
c. r = squareroot of (flowrate / (V * pi))
You can use a fuel cell. You use a solar cell to convert light into electrical energy which splits a water molecule into hydrogen and oxygen. Then you can use a fuel cell to recombine the hydrogen and oxygen and produce electricity.
It would depend on how well insulated your system is; the less energy lost, the less energy you need to collect with your mirror to boil the water, therefore the smaller collection mirror needed.
Then you have to look up turbine generator set efficiency to know how much steam you are going to need to turn the generator rotor within the stator field.
And if it is wet steam, it will either rust your turbine out or rip it apart depending on how fast it turns. Another reason insulation is important. The steam has to remain superheated all the way to the turbine.
Yes. only a little though. since smoke is lighter then air it rises. Like steam. Steam is used to turn turbines. But it wouldn’t be able to turn a turbine very well. It’s not very practical.
water when falls strongly on a turbine,rotates it. this rotation of turbine according to the principle in DC dynamo or that of in motor is used in the production of current. more details are in xth std ncert science and technology textbook