fullsquare

joined 3 weeks ago
[–] fullsquare@awful.systems 2 points 1 day ago

These were not supposed to be breeders, but this is only due to agreements that are ignored ny now. Technical capability is there

[–] fullsquare@awful.systems 5 points 2 days ago (2 children)

This sounds like that material would be more useful in high performance radars, not as flash memory

[–] fullsquare@awful.systems 0 points 2 days ago (1 children)

time travel (backwards) would break physics as we know it, what are you talking about lol

[–] fullsquare@awful.systems 6 points 3 days ago (2 children)

These are fast reactors and operate on different principles. The coolant there is sodium and while hard to design and run, it's doable. French had similar reactor but only one and it was shut down. Nice thing about fast reactors is that these can burn even-numbered isotopes of plutonium, useless in water moderated reactor, and give fresh mostly 239Pu plutonium of good quality. weapons grade even, and IAEA doesn't like it. But who cares since nonproliferation is dead anyway?

[–] fullsquare@awful.systems 1 points 3 days ago

yeah either that or sometimes that one biologist illegally gene-editing embryos shows up

[–] fullsquare@awful.systems 0 points 3 days ago

i will call MSRs (not thorium power, this is fine) toys until a single 100MWe+ unit gets built up. wanna bet that it won't happen in 20 years?

[–] fullsquare@awful.systems 0 points 3 days ago

they haven't demonstrated anything yet, but maybe they will develop something. perhaps. maybe. it's all uncertain at this point and technology for it doesn't exist yet.

high voltage transmission lines are a thing, look up where lignite or hydro power plants are situated relative to where people live. this is a solved problem

[–] fullsquare@awful.systems 1 points 3 days ago

You're confusing subcritical reactors with thorium power

[–] fullsquare@awful.systems 14 points 3 days ago* (last edited 3 days ago)

You absolutely can make a nuke out of thorium-derived material (first in Teapot MET, 1955, then possibly later by India). It's not widely used because plutonium is similar and in some important ways superior material

The tradeoff in using salt as fuel/coolant is that now almost all the fission products are in soluble form, instead of nice ceramic chemically inert pellets, which makes any spill much worse, and i wouldn't say it's safer for this reason - it's different, and it's a tradeoff few thought it is worth making. We have figured out how to make PWRs not explode so it's not that big of a problem. This goes both for uranium or thorium as a fuel

The reason Yucca Mountain is needed is that nuclear waste exists, if US reversed their policy on reprocessing maybe it wouldn't fill up so quickly. It's a matter of political will

At least now, the chemical engineering for reprocessing fuel when reactor is on is not there. Maybe it'll get developed in this project, but this didn't happen yet. It all has to be weighed against existing alternatives, and it's possible to breed 233U in normal water-based reactors, so maybe there's a little reason to make MSRs in the first place. India has some thorium energy projects as well, but they're slowed down by lack of fissile material to bootstrap it (you can't fuel reactor using thorium only, it needs some fissile material)

[–] fullsquare@awful.systems -3 points 3 days ago

what the fuck are you talking about

[–] fullsquare@awful.systems 1 points 3 days ago

When state-level funding for SMRs is available, it just makes more sense to build normal, GWe-sized reactors instead. For everything else, look up https://awful.systems/comment/7019440

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