2228295
Description
Mind Map by Danial JabbarButt, updated more than 1 year ago
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P3
- Electrical Energy
- Power is the rate of energy transfer
- Energy transferred=power x time
- Power=Voltage x Current
- Efficiency=energy usefully transferred/total energy supplied
- Power is the rate of energy transfer
- Sankey Diagrams
- Energyy is always conserved even if it's wasted
- Thickness of arrow represents amount
- Energyy is always conserved even if it's wasted
- Saving Energy
- Home
- Hot water tank jacket
- Double glazing
- Energy saving bulbs
- draught proofing
- loft insulation
- loft insulation
- draught proofing
- Turn unused appliances off
- Energy saving bulbs
- Double glazing
- Hot water tank jacket
- Public transport/car
share/cycling/walking
- Recycling
- Recycling
- Home
- Energy Sources
and Power Stations
- non renewable fuels
- Fossil fuels; coal,
oil, natural gas
- Nuclear fuels (uranium, plutonium)
- Fossil fuels; coal,
oil, natural gas
- Renewable fuels
- wind
- waves
- Tides
- Hydroelectric
- Solar
- Solar
- Hydroelectric
- Biofuels
- Geothermal
- Geothermal
- Tides
- waves
- wind
- non renewable fuels
- Nuclear
Energy
- Release energy by splitting atoms
- Heat evaporates water, steam
drives turbine, generator converts
kinetic energy into electricity
- Release energy by splitting atoms
- Biofuels,
Geothermal and
Hydroelectricity
- Biofuels are made from plant waste
- Geothermal energy is heat
from underground
- Hydroelectricity uses dams to catch the rain
- Requires flooding a valley
- Requires flooding a valley
- Biofuels are made from plant waste
- Generators and the National Grid
- Moving a magnet in a wire coil induces a voltage
- As you move the magnet through the coil the magnetic field in the coil
changes and and induces a voltage and a current if the circuit is complete
- As you move the magnet through the coil the magnetic field in the coil
changes and and induces a voltage and a current if the circuit is complete
- Energy is distributed via the national grid
- Distributed at a high voltage
- High current loses too much heat
- High current loses too much heat
- Distributed at a high voltage
- Moving a magnet in a wire coil induces a voltage
- Comparison of energy resources
- Coal
- 36% effiicient
- 8000 million units
produced/year
- 920g CO2 per Unit
- Site life- 50 years
- Cost of energy-2.4-4.5p
- 36% effiicient
- Gas
- 50% efficient
- 5000 million units produced/year
- 440g-CO2 per unit
- Site life- 30 years
- Cost of energy- 2-3p
- 50% efficient
- Nuclear
- 38% efficient
- 7000 million units produced per year
- 110g- CO2 per unit
- Site life 25 years
- Cost per unit- 4-7p
- 38% efficient
- Wind
- 35% efficient
- 150 million units produced/year
- 0g -CO2 per unit
- Site life 25 years
- Cost per unit- 3-4p
- 35% efficient
- Coal
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