Nuclear fission reactor?

Question

What is the main advantage of using fusion reactions to generate power?

What is the plasma in the fusion reaction?

How can spent fuel be reprocessed?

What is the advantage of nuclear fuel compared to coal (for generation of power)?

Thanks if you can answer any of these questions

Answer 1

http://hyperphysics.phy-astr.gsu.edu/hbase/nucene/fiscon.html

Answer 2

You're mixing up fusion and fission reactors; two very different things.
The main advantage of a fusion reactor is almost limitless supply of cheap fuel.
A fusion reactor doesn't produce many radioactive byproducts but it does produce some. The vessel and other components containing the reaction will become radioactive over time.
There is no spent fuel to be reprocessed. That's a problem with Fission reactors.
A fission or fusion power plant produces no CO2.
There are no fusion power plants in operation today. There exists only experimental reactors which at best have produced limited fusion reactions for scientific study of the containing plasmas.

Answer 3

There was simply such a large deposit of uranium present there that it reached critical mass and underwent a fission reaction with natural water acting as a moderator. This was discovered because the uranium mined in Oklo had a lower concentration of U235 than expected, as if the uranium had already been used in a reactor. This is believed to have happened about two billion years ago. Due to the half-life of U235, natural uranium has now decayed to the extent that a natural nuclear fission reaction is no longer possible on Earth.

Answer 4

Nuclear fission happens on boats.


Fusion produces absolutely no harmful byproducts

i don't believe spent fission fuel can be reprocessed, only stored, because it is still very harmful to life
fission is cheaper than coal, and produces no air pollution (does produce radioactive materials which could be seen as a form of polution)

Answer 5

The main advantage of fusion reactions is that it is pollution free. large power generation from small amount of fuel.
But the only disadvantage is that fusion takes place only undr high pressure and temperature. There are only two fusion reactors in world. In Cadarache, france. And oxford in England. The fuel used in it is sea water. And after power generation it develops only neutrons which are not dangerous at all.

Answer 6

1: cheap, "safe", and efficient energy generation.
2: plasma is gas atoms with all electrons removed- the "fourth" state of matter
3:Try wikipedia- some types can be reprocessed
4: much more efficient, does not produce carbon