Fusion: Nature's Fundamental Energy Source 3/3

Part 3 of a video by General Atomics Fusion Energy Research. Source- http://fusion.gat.com/global/Movies

Category:

Howto & Style

Tags:

• plasma
• fusion
• nuclear
• energy

[poshzombie]

One thing I'm a bit unclear on.

It seems that the major mechanisms and fundamentals of tokamak fusion generation are understood. And prototypes such as JET seem fairly sophisticated. So what are the specific hurdles that require another 25-30 years for a full scale plant to implemented?

[stevebd1]

From wiki- 'All of these devices have faced considerable problems being scaled up and in their approach toward the Lawson criterion. One researcher has described the magnetic confinement problem in simple terms, likening it to squeezing a balloon the air will always attempt to "pop out" somewhere else. Turbulence in the plasma has proven to be a major problem, causing the plasma to escape the confinement area, and potentially touch the walls of the container..

[stevebd1]

..If this happens, a process known as "sputtering", high-mass particles from the container (often steel and other metals) are mixed into the fusion fuel, lowering its temperature.'

[JonThm]

Nature does fusion on water

[happinesson]

this is not an ordinary day to day topic.But showing the experiment entice me to watch it until the end.

[KS6760]

THANK YOU!! This helped me out A LOT to understand and write a research paper on Fusion as an energy source!!!

[Ebdan88]

Wake up, wake up, wake up... Dont Fucking look at the TV. anymore. I Never look at my tv, because it is really a Brainwashing Box. When are you, YES YOU going to wake up, and say Enough. Enough Evil, Enough lays, enough Corruption, destruction. The ColdFusion exists and they can not denay it, Specially when people start to write and inform others....So please Inform others, and awaken the Masses.........

[datzfast]

@posh zombie hurdles include but not limited to a total lack of imagination and creativity followed by massive doses of doing things that dont work over and over.

ha ha its guaranteed failure for success and a big fat retirement 25-30 years in the future, dont you get it yet, your being conned by the best.

[sbswane]

One of the main obstacles to a full scale power plant is confining the very hot plasma long enough so that the reaction becomes self-sustaining. Up to now, scientists have had to continuously add energy to the plasma to keep the plasma hot enough for fusion to occur. TFTR was able to achieve break even but fell short of the so-called plasma ignition. Ignition will produce a self-sustaining hot plasma and is the goal of the ITER experiment. This is a next step to making a real power plant.

[echever7]

It's close. In Z-pinch the plasma was bound to cnfien itself with its own magnetic field. In tokamaks, stellarators and similar devices, the plasma is confined by an external magnetic field. In all cases the instabilities make the plasma to escape to the walls.

[TwoBun]

I think this video is dated. ...ahh...cause the other video says ITER is a Latin word for "the way" and they're building the reactor in Cadarache, France. I remember when ITER was in San Diego, but it seems like the Americans got fired and the EU took over the project. I guess I could try to read up about it.

[TwoBun]

Is that the same as the z-pinch? I read about that a while ago.