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reddig33, in First US molten salt reactor in over 50 years to be built

Why can’t this country build a modern reactor? Why do we keep investing in outdated, polluting-style nuclear energy?

ME5SENGER_24,

Cause some rich fuck or fucks have their hand(s) so far up politician’s asses that progress is slowed by their own greed and ineptitude

Sheeple,
@Sheeple@lemmy.world avatar

Molten Salt reactors are great at recycling spent uranium and don’t really cause pollution. If anything they reduce pollution because they create less nuclear garbage.

Over here in Germany it has already shown that you can’t fully replace nuclear power with green power. What you instead get if you try to shut down all the nuclear reactors is an increase in coal fossil fuel based plants, which are far worse for the environment


So, do you want nuclear power and have us learn how to recycle nuclear waste, or do you want to abolish nuclear power and have us return to fossil fuels? These are your only two options.

ivanafterall,
@ivanafterall@kbin.social avatar

I want to get off Mr. Bones' Wild Ride.

roguetrick,

Molten Salt reactors are great at recycling spent uranium and don’t really cause pollution. If anything they reduce pollution because they create less nuclear garbage.

If it was that big of a problem folks would be doing PUREX reprocessing with all nuclear fuel. Not a clean process, but reduces the overall mass problem you have with spent fuel rods. No matter what you do, you just can't burn off the fission products that last forever and ever. You can put them in a container the size of a coffee can that still emits a similar amount of radiation as a whole rod if you want, but I'm not sure I see the utility. They just take those and vitrify them to make them bigger to take advantage of the inverse square law and make them safer to handle.

As long as uranium stays cheap, neither reprocessing, breeders, or reactors that eat the plutonium they produce really makes sense. You still need a similar site to store the waste regardless. As it stands I don't think we'll see uranium being a significant part of running a reactor in the foreseeable future. (As long as you're not a nuclear weapons state that doesn't have a robust fuel enrichment program, like India).

lntl,

Sounds like it will be a “modern” reactor that uses molten salt as coolant instead of water. I wonder what they’ll make the coolant loops out of: steel glows at 900 deg Freedom.

roguetrick,

I wonder what they’ll make the coolant loops out of: steel glows at 900 deg Freedom

That's always been the problem with the reactors. High heat, corrosion resistant, and resistant to neutron spallation is a very very tall order.

https://thebulletin.org/2022/06/molten-salt-reactors-were-trouble-in-the-1960s-and-they-remain-trouble-today/

lemming741,

Everything starts to glow north of 900, but your point stands

Zoboomafoo,
@Zoboomafoo@lemmy.world avatar

This kind of reactor could be installed on cargo ships

M137, in 25MW turbines for third gigawatt-scale Swedish offshore wind farm

Nice! We (Sweden) just got 700 MW of new onshore wind, too. Article from the same website OP posted:

windpowermonthly.com/…/sweden-almost-700mw-new-on…

flambonkscious, in The U.N. says 90% of Gazan's are Displaced and 60% of Infrastructure Damaged/Destroyed

Only 60% of the infrastructure? The pic looks a lot higher., but I guess thats just the foreground…

athos77, in First US molten salt reactor in over 50 years to be built

highly corrosive and pyrophoric fuels and coolants that, following irradiation, will become highly radioactive

How true is this? Because a highly radioactive and highly corrosive material that like to catch fire spontaneously - well, that just doesn't sound like a good idea, yet obviously some people are considering it. What am I missing?

lntl,

“Salt as a coolant is just superior to water, once you’ve got the engineering details hammered out,” Smith told BI.

You’re missing the “engineering details” I guess

athos77,

Is that like the whole "magic occurs here" thing that I also never quite got?

lntl,

Sounds like you get it now ;)

roguetrick, (edited )

If you can work it properly, molten salt reactors are MUCH safer and more efficient, because the waste heat from fission products cannot cause a problem with something cooled through convection and conduction of a molten salt. You can't really have a destructive meltdown when the coolant doesn't care if the fuel melts. The problem is, most previous attempts ended up with the reactor catching on fire. Not a dangerous fire, exactly, but generally not the outcome you're looking for.

On the waste front, neutron activation of water produces tritium at worst, which you dispose of by putting it into a bigger body of water. Neutron activation of the molten salt coolant can be more difficult to dispose of, but it's not exactly a major problem.

Maeve, in First US molten salt reactor in over 50 years to be built

What is it with my nation? If you are the last person to die with all the money, what have you actually won?

Zoboomafoo,
@Zoboomafoo@lemmy.world avatar

Read the article, the OP only quoted the part that talked about the downsides

It’s about developing small, safe reactors

Mac, in The U.N. says 90% of Gazan's are Displaced and 60% of Infrastructure Damaged/Destroyed

And nearly the entire world is allowing it to happen.

stoy, in 25MW turbines for third gigawatt-scale Swedish offshore wind farm

I am allways concerned about off shore power, it gives a huge opening to a foreign actor to stealthily attack them under water…

But as long as they wont replace existing powerplants and just export the surplus, I am fine with it.

lntl,

If I sabotaged your offshore power, I’d say that I didn’t and have my navy produce a report that concluded that whales did it.

mosiacmango,

They aren’t just towers in the dark. These things have all sorts of sensors on them. I doubt even a submarine is going to stealthily destroy these.

The power grid has way, way more weaknesses that would be way more impactful dont require a submarine to execute. Capitalism has guaranteed we have basically zero spare parts for large transformers. A single person can easily destroy these and do more damage in a war time scenario.

lettruthout, in Natural gas pipeline construction is booming

And whale oil used to be a thing. I’m hoping natural gas will also go away.

shalafi, in Assange gets court date for last-gasp bid to avoid extradition to US

Was stuck at my friend’s dad’s house, stuck on Fox News for a week while this went down.

Dad and his wife literally laid in their armchairs all week, smoking pot, watching Fox. Nothing else. And I do mean literally. They slept in their Lazy-Boys, never in bed, Fox never got turned off. Not once.

His dad was a smart man, and quite reasonable. Asked him why the biggest story on the planet, one that made Obama look bad, didn’t get a single mention on Fox. Not one. Over an entire week. Shoulder shrug.

Still can’t understand what happened there. Perfect time for Fox to go ballistic on Obama. Silence.

Rom, in Federal judge orders documents naming Jeffrey Epstein's associates to be unsealed
@Rom@hexbear.net avatar

What is the likelihood that any name on that list is going to suffer any consequences? I’m giving it a solid “I’ll believe it when it happens.”

iraq_lobster, in Natural gas pipeline construction is booming

people who work in jobs involvoing such sector should be ashamed

PeroBasta, in Three Wall Street Mega Banks Hold $157.3 Trillion in Derivatives – That’s $56.7 Trillion More than the Entire World’s GDP Last Year

I believe the dots and commas between numbers are used randomly and cause confusion.

fiat_lux,

Currency and numeric formatting works differently by location, it looks consistent and correct for US formatting.

Personally, I think it's high time for a new global standard on this that abandons the dots and commas altogether, using new symbols so nobody can complain that it's unfair that only some people have to change. But that's... very unlikely to ever happen, for no good reason.

baldingpudenda,

Huh, I thought a space instead of a coma or period was the standard. Ex: 1 000 000

Xer0,

Never in my life have I seen that format.

fiat_lux,

TIL Digit grouping style variances are even more fucked than I anticipated. International Bureau of Weights and Measures along with International Union of Pure and Applied Chemistry uses spaces, but different countries use commas or dots and some use spaces and comma OR dot?

Fuck this, we should redo the whole numeric system. Burn it all down and start from scratch.

metaStatic,

you can be assured that no matter what we choose America will legislate that whatever they're using now is defined in law by the new standard while people are free to ignore it, just like metric.

No_Eponym,
@No_Eponym@lemmy.ca avatar

Burn it all down

Big banks: We’re working on it!

Zerush, in Assange gets court date for last-gasp bid to avoid extradition to US
@Zerush@lemmy.ml avatar

If you’re telling the truth, you need a damn fast horse

Armenian proverb

cedarmesa, in Three Wall Street Mega Banks Hold $157.3 Trillion in Derivatives – That’s $56.7 Trillion More than the Entire World’s GDP Last Year
@cedarmesa@lemmy.world avatar

These banks are going to bring about WWIII

Hugohase, in First US molten salt reactor in over 50 years to be built

It will never be built, it will go the way of all nuclear "innovations" and die expensively.

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