105070
Description
Mind Map by seth.bragg, updated more than 1 year ago
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Created by seth.bragg
almost 11 years ago
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Methods We Use to Generate
Electricity
- Generating electricity
- In some power stations an energy source is used to heat water
which produces steam that can be used to turbine coupled to an
electrical generator
- Fossil fuels (coal, oil and gas) which
are burned to heat water and air
- There supply is limited
- Coal and oil release sulphur dioxide
which causes breathing problems for
animals and contributes to acid rain
- Fossil fuels, when burnt, produce carbon
dioxide which adds to effective of global
warming
- A system called carbon capture allows carbon to be captured
and can be stored underground
- A system called carbon capture allows carbon to be captured
and can be stored underground
- There supply is limited
- Uranium and plutonium, when
energy from nuclear fission is used
to heat water
- Nuclear energy does
not produce carbon
dioxide or sulphur
dioxide
- Nuclear energy is a
non-renewable energy source
and is hazardous to health for
thousands of years
- Nuclear energy does
not produce carbon
dioxide or sulphur
dioxide
- Biofuels that can be
burned to heat water
- Fossil fuels (coal, oil and gas) which
are burned to heat water and air
- Water and wind can be used to drive
turbines directly
- Wind turbines are
renewable,don't
produce toxic gases
and have no fuel costs
- Wind farms produce noise and visual pollution and the amount of power
they make is dependent to the amount of wind; if there is no wind, there is no
power
- Water energy is a renewable source
and produces no harmful gases- they
are reliable and easily switched on
- Water energy does not produce large amounts of energy, destroys
the habitat of estuary species, floods farmland and drives people
from their homes- it also produces rotting vegetation which
produces methane a green house gas
- Wind turbines are
renewable,don't
produce toxic gases
and have no fuel costs
- Electricity can be produced directly
from the sun's radiation
- Solar energy is renewable, produces no
harmful gases and have no fuel costs
- Solar energy is unreliable, inefficient,
expensive and doesn't work at night
- Solar energy is renewable, produces no
harmful gases and have no fuel costs
- In some volcanic areas hot water and steam rise
to the surface which can be tapped and used to
drive turbines (geothermal energy)
- Geothermal energy is renewable,
produces no harmful gases and has no
fuel costs
- Most places in the world
have these rocks
- Geothermal energy is renewable,
produces no harmful gases and has no
fuel costs
- Small-scale production of electricity may be useful in some
areas and for some uses, e.g. hydroelectricity in remote areas
and solar cells for roadside signs
- In some power stations an energy source is used to heat water
which produces steam that can be used to turbine coupled to an
electrical generator
- The National Grid
- The national grid is a network of
cables which distributes energy
from the power stations to homes
and buildings
- Increasing the voltage reduces the current required and this
reduces the energy losses in the cables
- The voltage is then decreased to make the energy safe for domestic uses
- The voltage is then decreased to make the energy safe for domestic uses
- The national grid is a network of
cables which distributes energy
from the power stations to homes
and buildings
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