renewable & non- renewable energy. fossil fuels 1.name the main types of fossil fuels. 2.explain...
TRANSCRIPT
Renewable & Non- renewable
energy
Fossil Fuels
1. Name the main types of fossil fuels.
2. Explain briefly how they were made.
3. Why is there a problem with fossil fuels?
( 2 reasons )
Power Stations
Power stations
In fossil fuel power stations the fuel is burned to produce heat
This heat generates steam
The steam helps spin a large turbine
This spinning turbine generates electricity
- However, lots of waste gases are produced
- E.g. sulphur dioxide, carbon dioxide, nitrogen oxide
- What problems do these gases cause?
Alternative Energy
List as many kinds of renewable
energy as you can.
At least 4 kinds.
Wave Energy
Wave Energy
The energy in the waves can be changed into electrical energy.
It is free, clean and will not run out.
Only available at certain locations.
It is difficult to convert into useful energy
Wind Energy
Wind Energy
It is free,clean and will not run out.
Only suitable at certain locations.
Can be noisy, and cause visual pollution.
It is difficult to convert into useful energy.
Hydro Electric
Hydro Electric
As the water flows down it turns turbines
Which then turn generators to make electricity.
Only available at suitable locations.
Solar Energy
Solar Energy
The suns light is changed into electrical energy.
It will not run out and is free and clean.
Some locations are more suitable than others.
Solar panels can be very expensive
A clue to another kind of free energy
Geothermal energy
Energy in the form of heat is found in some rocks.
Water is pumped through the rocks to extract the heat.
Only in suitable locations and it is difficult and expensive to set up
Nuclear Power Station
Energy comes from nuclear fission.
The atoms split releasing energy and 2 or more neutrons.
These neutrons split other atoms and there is a chain reaction.
Is non-renewable – uses radioactive metals e.g. uranium
Nuclear Power
List advantages and disadvantages of nuclear power.
Advantage:– a little fuel gives a lot of energyDisadvantages:- dangers involved with nuclear energy- problem with nuclear waste lasting a long
time
BioFuel• Plants (e.g. sugar cane) can be
used to produce alcohol
• This alcohol (ethanol) is very flammable
• Can be used as a source of energy
• However, growing crops for fuel not food is controversial
Source of Energy Advantages Disadvantages
1.Wind2.Wave3.Solar4.Tidal5.Geothermal6.Hydroelectric7.Nuclear8.Fossil Fuels9. BioFuels