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power plants

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ashlee aptt

on 7 April 2011

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Transcript of power plants

Power Plants... By, Ashlee Aptt Coal Power Plant A coal power plant works by coal being burnt to produce heat to make water boil. The steam drives a turbine which turns a generator to make electricity. Hydro Power Plant Nuclear Power Plant Solar Power Plant Wind Power Plant
A hydro power plant is generated by the force of falling water. It’s one of the cleanest sources of energy, and it’s also the most reliable and costs the least. Geothermal Power Plant Electricity is produced by spinning electromagnets within a generator’s wire coil. The wire coil creates a flow of electrons. To keep the electromagnets spinning, hydroelectric stations use falling water
Geothermal power plants use steam to drive a turbine. The turbince turns a generator to produce electricity. The turbine is like a large propeller. When the steam flows through it, it creates lift along the edge of the blades, spinning the turbine. Solar power plants use the sun's rays to produce electricity. Photovoltaic plants and solar thermal systems are the most commonly used solar technologies today. Nuclear power plants work by heating water until it becomes steam. When water turns into steam it quickly expands. When a gas expands, it creates pressure. That pressure pushes the steam through pipes out through a large turbine. That turbine spins, turning a generator that produces electric power. A turbine is a machine that spins around in a moving fluid wind, liquid or gas and catches some of the energy passing by. The energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity.
pro- cleanesr sourcs of engery. con- you need a large body of water for it to produce any amount of electricity pro- Nuclear power plants don't require a lot of space.

con- nuclear explosions produce radiation, this radiation harms the cells of the body which can make humans sick or even cause them death
pro- Coal is one of the world's most plentiful energy sources.
con-Air pollution from coal-burning poses a health hazard. pro- can be installed in a variety of locations. Con- Wind strength is unreliable, too much or too little con- It's only good for places where they is lots of fun all year around. pro- it will save you money in the long run pro- It's cheap to run since there is no fuel required con- There is limited place to build the kind of power station needed (best places are near volcanic activity)

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