Generating Electricity
- Created by: JessicaGrey
- Created on: 18-04-16 16:44
View mindmap
- Generating Electricity
- Power stations
- An energy source is used to
heat water. The steam produced drives a turbine
that is connected to an electrical generator.
- Fossil fuels (coal, oil and gas)
- Nuclear fission of uranium and plutonium
- Biofuels
- An energy source is used to
heat water. The steam produced drives a turbine
that is connected to an electrical generator.
- Fossil fuel power station
- Advantages; very reliable, produces lots of energy
- Disadvantages; produces CO2- greenhouse effect (carbon capture) and sulphur dioxide- acid rain
- Carbon capture; storing carbon underground in empty oil holes
- Nuclear power station
- Advantages; no pollution and produces lots of energy
- Disadvantages; creates radioactive waste and is expensive
- Renewable energy sources
- Wind Turbines
- Weather dependent, visual and noise pollution
- Water- Hydroelectricity scheme
- Good reliability, visual pollution, habitats destroyed
- Tide
- Used to drive turbines directly
- Waves
- Water- Hydroelectricity scheme
- Good reliability, visual pollution, habitats destroyed
- Wind Turbines
- Weather dependent, visual and noise pollution
- Used to drive turbines directly
- Waves
- Solar cells
- low reliability, weather dependent
- Geothermal- volcanic activity
- Can only be used in certain areas
- Wind Turbines
- Small-scale production of electricity may be useful in
some areas and for some uses
- hydroelectricity in remote areas
- solar cells for roadside signs
- The National Grid
- Electricity is distributed from power stations to consumers along the National Grid
- Step-up transformers; increase voltage and decrease current
- Less energy is lost as heat to surroundings (large current causes heat)
- Step-down transformers; decrease votage
- Makes it safe for homes and appliances
- Underground or Overground cables
- Underground= hidden cables, very expensive to install and repair, must be made with special casing to prevent overheating
- Overground= spoil landscape and unknown health issues
- Power stations
Comments
No comments have yet been made