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7.3 nonrenewable energy-nuclear sources (nuclear sources (nuclear power:…
7.3 nonrenewable energy-nuclear sources
nuclear sources
nuclear power: plant that boils water, spins turbine to make electricity
nuclear fission reaction (heat)
reactor
nuclei
isotopes struck by neutron
chain reaction
releases neutrons
cause more nuclei to fission
fuel
uranium ore
1% uranium-235 fissionable
uranium dioxide
cycle
build power plant
mine uranium
processing/enriching uranium for fuel
use in reactor
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nuclear meltdown
coolant (water)
containment shell surrounds core
makes probability extremely low
advantages
low CO2 emissions
reactor operate safely, power plant has low enviro impact, low accident risk
disadvantages
high cost
low net energy
nuclear weapons
nuclear waste
decommissioned after 60yrs
remove, store parts
barriers
containment structure
nuclear energy NOT solution to climate change
cleaner options
reducing energy waste
producing electricity from wind/sun
nuclear fusion
