Electricity....Lets save It !!!!

14
he origin of powe

description

Electricity is an essential part of our it. We cannot live with without it. So lets save it !!!!!!

Transcript of Electricity....Lets save It !!!!

Page 1: Electricity....Lets save It !!!!

The origin of power

Page 2: Electricity....Lets save It !!!!

WHAT IS ELECTRICITY?Discovery of

electricity

•About six hundred years back the people of Asia Minor and Greece had a very crude idea of electricity.

•Next, the American Scientist Benjamin Franklin proved with the help of a kite that there is electric power in the clouds.

•The lightening is nothing but the discharge of electricity that the clouds contain.

About six hundred years back the people of Asia Minor and Greece had a very crude idea of electricity.Next, the American Scientist Benjamin Franklin proved with the help of a kite that there is electric power in the clouds. The lightening is nothing but the discharge of electricity that the clouds contain.

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History of electricity

Using power transformers to transmit power at high voltage and with low

loss.

Electricity has been generated at central stations since 1881.

Central power stations became

economically practical with

the development of alternating current power transmission.

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SOURCES OF ELECTRICITY

Thermal Power This is made by coal.

Hydro Electric Made by speed of water.

Nuclear Power Made by fusion.

Fossil Fuel Made by fossils of dead

animals.

Solar Energy Made by solar energy of

sun.

Wind Power Made by speed of wind.

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Fossil fuels

Fossil fuel is a material that can be burned and that comes from the fossil remains of

animals and plants, such as long-dead dinosaurs.

Some examples of fossil fuels are coal, natural gas and petroleum.

This source is currently available and it is not dependent upon the weather.

Some of the problems of fossil fuel use are that it causes pollution, it is a non-

renewable resource and it needs to be mined from the earth.

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Wind power It is produced by the wind turning a turbine. Using windmills, has been known for many centuries.

Also, in order to be effective, the wind speed at a power site has to be over 12 kilometers per hour. Finally, this source of power is costly and requires special equipment.

This source of energy produces almost no pollution, and it is easy to capture in many parts of the United States.

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Solar energy Solar energy is the energy that comes from the sun. We capture solar energy

through solar panels. This energy produces no

pollution; also it doesn’t taint anything.

About the equivalent of 22 million barrels of oil of solar energy

hits the United States alone per

day.

This might sound like the perfect energy but it is costly and besides, you

can’t be sure that the sun will shine brightly without cloud cover everywhere in

the country every day.

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It is produced

when water falls from a

high place to a low place.

The turbine drives the

generator. This form of energy produces little pollution; in

addition, it does not ruin the

water.

The water still can be used for other purposes. Hydroelectric

power does not cost any more

than fossil fuels.

Another advantage is

that there are a lot of lakes or rivers where a dam can be

built to produce energy.

One disadvantage is

that fish, such as salmon, can not climb over the

dam, so the dam changes the

environment.

Hydroelectric power 

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Nuclear power 

It is made by fusion .It is produced in the reactor of a nuclear power station. The energy turns water into steam, which drives a turbine that

powers a generator.

This energy, unlike other sources, produces lots of radioactive waste.

It produces lots of energy and can be made to power major cities.

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Types of power stations

COAL POWER STATION•Jharia•Bokaro in Jharkhand

HYDRO POWER STATION•Bhakra Nangal Dam•Hirakud Dam•Nagarjunsagar Dam •Gandhi Sagar Dam

NUCLEAR POWER STATION •Kalpakkam in Tamilnadu•Tarapur in Maharashtra•Ranapratap Sagar in Kota •Narora in Uttar Pradesh

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SAVE ELECTRICITY

Turn off the lights when not in use Take advantage of daylight by using light-colored, loose-weave curtains on your windows to allow daylight to penetrate the room. Also, decorate with lighter colors that reflect daylight. De-dust lighting fixtures to maintain illumination. Use electronic chokes in place of conventional copper chokes.