Generating electricity from fusion

  • Thread starter Thread starter RandomGuy88
  • Start date Start date
  • Tags Tags
    Electricity Fusion
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
3 replies · 5K views
RandomGuy88
Messages
404
Reaction score
6
How is the energy released from nuclear fusion used to generate electricity? From my understanding heat is generated during nuclear fission and this heat is used to heat a fluid and drive a turbine. So how does it work with nuclear fusion?
 
Physics news on Phys.org
The proposed design is to have the cooling fluid for the walls of the reactor be the working fluid. I'm not sure of what the radiological and chemical implications are, but things should look similar to other power plants on the secondary side.

I believe there has also been discussion of "direct conversion" because you end up with a charged particle with more energy. I haven't read enough on how it works to give a confident answer though.
 
The first thing I thought of was to just use the energy to heat a fluid but I was wondering if this is really feasible. In order for fusion to occur the temperature is so high I assume that it could not be used to heat a fluid because the material holding the fluid couldn't handle it.
 
I think I remember reading somewhere that one idea is to surround the reactor with a lithium blanket. The lithium would not only absorb the neutron from the fusion reaction (producing more tritium fuel), but also act as the coolant where heated lithium would be sent through a heat exchanger/steam generator producing steam for the turbine etc etc.