How are they going to get a GW continuous from a tokomak fusion reactor?

[Dave]

Still don't know, and no-one says how they are going to get a GW out of
a tokomak fusion reactor. A doughnut, with a lot a magnets and
necessary control as well, all on the inside.

The big problem as I see it is that there is a surface to absorb the
heat / radiation energy. Even if using tungsten or titanium, it may be
getting extremely hot, getting hotter than it can safely conduct the
heat away to a heat exchanger to make high pressure steam to drive
turbines.

A fission reactor is a 3D thing, and the heat absorption from a tokomak
is a 2D thing from the diagrams I have seen, which is the core of the
problem.

With the energy crisis it seems like a lot of resource is being used
chasing dreams, which could be put on hold meanwhile, and the people put
to better use.

[Jim Pennino]

Post by Dave
Still don't know, and no-one says how they are going to get a GW out of
a tokomak fusion reactor. A doughnut, with a lot a magnets and
necessary control as well, all on the inside.
The big problem as I see it is that there is a surface to absorb the
heat / radiation energy. Even if using tungsten or titanium, it may be
getting extremely hot, getting hotter than it can safely conduct the
heat away to a heat exchanger to make high pressure steam to drive
turbines.
A fission reactor is a 3D thing, and the heat absorption from a tokomak
is a 2D thing from the diagrams I have seen, which is the core of the
problem.

There are no 2D things in the real physical world.

The heat is transferred through the walls of the containment vessel.

Post by Dave
With the energy crisis it seems like a lot of resource is being used
chasing dreams, which could be put on hold meanwhile, and the people put
to better use.

With the energy crisis it is more important than ever to get fusion
working ASAP.