Comment on Reactor goes brrr

roguetrick@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

• BudgetBandit@sh.itjust.works ⁨2⁩ ⁨weeks⁩ ago

  That’s why you have a closed water system and multiple failsaves.

  Unless you want to cyka your last blyat.

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  • dufkm@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    What do I need to roll to pass the failsaves?

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    • ICastFist@programming.dev ⁨2⁩ ⁨weeks⁩ ago

      Roll yourself up in a blanket of lead and concrete

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• pruwybn@discuss.tchncs.de ⁨2⁩ ⁨weeks⁩ ago

  Image

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  • ThrowawayPermanente@sh.itjust.works ⁨2⁩ ⁨weeks⁩ ago

    This scene was really outstanding

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  • xspurnx@lemmy.dbzer0.com ⁨2⁩ ⁨weeks⁩ ago

    What’s that from?

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    • pruwybn@discuss.tchncs.de ⁨2⁩ ⁨weeks⁩ ago

      The Chernobyl miniseries on HBO.

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      • xspurnx@lemmy.dbzer0.com ⁨1⁩ ⁨week⁩ ago

        Ah, thanks. I’ll check it out.

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• Kaelygon@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

  thankfully modern ones like molten salt reactors have passive safety, where they stop the reaction if overheating occurrs.

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  • Diplomjodler3@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    And are those modern molten salt reactors in the room with us now?

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    • UnderpantsWeevil@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      en.wikipedia.org/wiki/TMSR-LF1

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      • Diplomjodler3@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

        2 MW. Fantastic. And only 8 years until it reaches continuous operation. How long will it be before that is anywhere near utility scale?

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  • synapse1278@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    Ah yes, the passive safety of the molten salt spontaneously catching on fire when in contact with air and can’t be put out with water.

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  • roguetrick@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    You can’t stop decay heat. It’s just molton salt reactors can operate at much higher temperatures and if it loses active cooling passive cooling with just air and blackbody radiation while the salt passively circulates could be enough.

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  • PieMePlenty@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    Isn’t molten salt just energy storage? Heat up salt when you have excess of energy, take heat out when you need it. The worst disaster there is just the container melting.

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    • Agent641@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

      No, there are molten salt thermal batteries, but they aren’t the same as molten salt nuclear reactor. In a nuclear reactor the fissile material is dissolved in the salt for some reason, and the molten salt acts as a moderator or something. Apparently its safe because if the reactor power fails, the salt ‘freezes’ which prevents fission from occurring. Seems like complex extra steps to me but what do I know.

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      • roguetrick@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

        “Can’t have a meltdown when you’ve already melted the fuel” is pretty much the whole idea there.

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      • JATtho@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

        MSRs have negative temperature reactivity coefficient and outlet temps around 700C at atm pressure. PWR is at measly 300C and 150 Bar.

        If all control is lost, the salt expands as it heats up pushing the expanded volume out from the reactor core. The fission stops once the fuel is leaves the core region where the moderator is. Reverse is also true: you pull heat off from the loop, so the fuel-salt becomes denser, increasing reactivity. MSRs can naturally “follow” the load, if done right.

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  • humanspiral@lemmy.ca ⁨2⁩ ⁨weeks⁩ ago

    there’s no active commercial molten salt reactors.

    Experimental ones were all shut down within 5-10 years because corrosion makes them uneconomical to repair.

    Fukushima’s case, which is the last significant nuclear incident in past 13 years

    Zaporizhzhia in Ukraine has military attacks against it, with intent of fundraising and politically blaming a disaster on the side that weapons providers, and the media they own, love to hate. Our media normalizes civil war as a response to Netanyahu not having his favorite ruler appointed.

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• OmegaLemmy@discuss.online ⁨2⁩ ⁨weeks⁩ ago

  Thorium Thorium Thorium Thorium Thorium

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  • Agent641@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    Uranium it is, then!

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• Rakonat@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

  Turn water back on suddenly and realize what happens when water touches an object many times warmer than it’s boiling point.

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• Agent641@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

  Just throw some sand and boron on it, she’ll be right mate.

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