Energy And Power Stations Flashcards
How is heat produced on nuclear power stations
By the fission of uranium or plutonium
What Are the disadvantages of nuclear power stations
Nuclear waste
Long start up+ decommission time
How does a wind turbine work
The wind spins a generator
Describe how tidal energy works
When the ride comes in and out tribunes are driven
What are the negatives of tidal power
Spoils the view
Prevents the passing of boats
Destroys habitats
Initially expensive
What are the negatives of wind power
Spoilt views
Noisy
Unreliable (needs wind)
Initially expensive
How does geothermal energy work
Hot rocks caused by radioactive decay have water poured on them creating steam
What are the problems with geothermal energy
Expensive
Only able to be built in volcanic areas
What are the disadvantages of biofuels
Deforestation
The crops deforested are burnt producing co2 and methane
Farmland is limited
What is done with carbon that is captured from power stations
It is pumped back into old gas or oil fields under the sea
Describe how a turbine works
Heat is created and is used to create steam from water the steams spins the turbine which converts thermal energy to kinetic. The turbine is connected to a generator which converts the kinetic to electrical
The more complex a power station the longer it’s
Set up and decommission time is
Which is more reliable non renewable or renewable energy sources
Generally non renewable
Which type of power station is cheaper to set up
Non renewable
What type of power station has the cheapest running cost
Renewable energy
