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Fusion Power Plant Simulator

fusionenergybase.com

131–135 of 135 posts

Re: Fusion Power Plant Simulator

#131

Earlier quoted context omitted.

Good points, but in all of that they are specifically targeting enrichment and reprocessing, while allowing nuclear power plants. A fusion reactor is a power plant. It produces neutrons but so does fission; in fact, conventional fission plants get a third of their power from plutonium that they breed from U238, and plutonium accounts for most of the long-term radioactivity in the waste. By comparison, a fusion plant…

Precisely because fusion reactor could be used for plutonium breeding they will be subject to the same controls and political pressures as fission power plants. Operation of all fission power plants, outside of countries with nuclear weapons, is subject to very strict controls by International Atomic Energy Agency, which reports to United Nations Security Council. Also because each civilian nuclear power reactor bree…

For the most part I think we're in vehement agreement. I wrote above that nuclear plants are permitted with inspection under the NPT, and I would expect D-T fusion to be the same. Your links also say that reactors are allowed in practice.

When I said "highly enriched fissile" I meant that to include plutonium. Weapons generally use Pu239, while nuclear waste plutonium is 58% Pu239 mixed with other isotopes, plus of course a lot of U238 and various transuranics.

There is one area where fusion reactors are clearly being treated differently, and that's by regulators such as the NRC, which has already decided to treat fusion reactors like particle accelerators and medical devices, rather than with the much more difficult process they use for fission reactors.

Re: Fusion Power Plant Simulator

#132

Earlier quoted context omitted.

My favorite video that walks through fusion energy design/sizing/cost equations is also a lecture by Dennis Whyte: https://youtu.be/KkpqA8yG9T4?si=U8xaAAvjdnt6yqr8 It’s a really engaging lecture - I’m normally pretty put off by 100-minute lectures on YouTube but this one was both very easy to follow and perfectly scoped. Can highly recommend it - the learnings from it are timeless fundamentals that really make fusion…

The wildcard for our civilization that I pay a lot of attention to: will AI help us get through blockers like this? I'm out of the prediction business but my guess is: absolutely, but iff we don't collapse in some way first. Wild to be alive as the centuries-long horse race of industrialization between doom, or the stars, approaches its finish line.

Fwiw, machine learning is already being used for plasma simulations.

The race between doom and the stars is something I think about quite a bit.

Re: Fusion Power Plant Simulator

#133

Earlier quoted context omitted.

> Who is Japan interconnecting with, or any other country that doesn't trust its neighbors? What is Canada supposed to do when it's ~6000 km from the equator and might not want to rely on the US for electricity regardless? With space. By space-based solar power instead of HVDC.

I would really love to see your per kwh costs estimates. It currently costs about ~$2,700 to launch 1 kg of mass into orbit. https://spacenexus.us/guide/space-launch-cost-comparison https://en.wikipedia.org/wiki/Space-based_solar_power#Launch...

Your link has 100 to 500$ per kg to LEO for Starship as target.

How much is one mile of HVDC?

Err, and where? Chinese HVDC? Canadian? US? Yurop?

Think of all the needed metal and area vs. a few fields of 'rectennas' to reinject the beamed down microwaves as energy into the already existing grid?

Re: Fusion Power Plant Simulator

#134
post #34

Earlier quoted context omitted.

> fusion is -always- just a decade away, perpetually Wasn't it perpetually 20 to 50 years away? I'm not an expert on the space. But new computational methods and magnets seem to be genuine steps forward.

IIRC the one of the first times a group put timelines to a fusion reactor they had time vs funding level of something like 20 years/50 years/never, and the funding level that actually materialised was below the 'never' amount and yet it started the 'always 20 years away' joke. Now I think the timeline was probably still optimistic but fusion is also obviously a very expensive thing to develop and while it's gotten a…

Plasma physics (magnetohydrodynamics / turbulance) turned out to be a bigger challenge then expected, but it's not far fetched to assume we would be somewhat further along had the funding been closer to one of the "more ambitious" curves.

Here's them infamous 1976 budget scenarios: https://commons.wikimedia.org/wiki/File:U.S._historical_fusi...

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