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Energy of the Future

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Elena Pascal

on 23 January 2013

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Transcript of Energy of the Future

The Energy of the Future Elena Pascal Nuclear Fusion ? Thermal Reactors Supercritical-Water-Cooled Reactor (SWCR) Very High Temperature Reactor
(VHTR) Molten Salt Reactors
(MSR) Gas-Cooled Fast Reactors
(GFR) Lead-Cooled Fast Reactors
(LFR) Sodium-Cooled Fast Reactor
(SFR) Energy = progress = civilization Fast Reactors Age of water power
Age of steam
Electrical Age
Nuclear Age designed primary as breeder reactors
no phase transition means no risks of explosions
high temperatures = increased thermal efficiency
Pro's higher pressure light water reactor Safe passively
Can be used to produce Hydrogen different from all the other reactors
the coolant and fuel itself are molten salt mixture
Jan, 2013 http://www.edfenergy.com/energyfuture Pro's Con's clean
affordable energy
relatively plentiful
safe http://en.wikipedia.org/wiki/Generation_IV_reactor radioactive waste
uses rare fuel
long time to build
high costs to build
fear of proliferation
fear of accidents FAST REACTORS use radioactive waste as fuel
more energy efficient
produce small amount of short-lived waste
passive safety features

no moderator
can't use water
keep neutrons "fast" during reaction Pro's high heat capacity
high thermal efficiency
no pressure needed
non-corrosive coolant Con's Na reacts with water and air
becomes radioactive Pro's Con's no material to withstand high temperatures
low thermal inertia cooled by natural convection

no explosion in case of leakage
Pb is good gamma absorber
smaller size reactors
Con's solidification of Pb may damage equipment High Temperature Thermal Reactors Questions? higher thermal efficiency
low pressure
breeder reactors liquid fluoride thorium reactor Beyond Gen IV? ITER: 2020
prototype power plant: 2030 Pro's high temperature and therefore thermal efficiency at atmospheric pressure
liquid fuel makes separation of fission product easy
can be build small
fast reaction to load changes Con's little known about design
needs on site chemical plant
regulatory changes to deal with radically different design
Full transcript