• dogslayeggs@lemmy.world
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    13 days ago

    Getting rid of the heat is going to be an issue for that… along with the massive pollution from the many launches required to get this in orbit.

    • db2@lemmy.world
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      13 days ago

      The heat will just dissipate in the air, and they can launch it at night when it’s colder. Science!

      /s in case, there are a few mouth breathers out today

      • FackCurs@lemmy.world
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        12 days ago

        They could build them so that they stay in perpetual dawn or dusk. One edge with the solar panels in the su, the other edge with the cooling fins in the night’s cool breeze.

        • Urist@lemmy.ml
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          12 days ago

          Geostationary orbit is far higher than low earth orbit and I would assume following earths twilight zone would not be much better. I do not see why you would either, with reaction wheels you could orient the satellites towards the sun regardless of the relative position of the earth, with the caveat that earth may block the sun which is hard to avoid entirely anyways.

          Also, there is not that much cool breeze in space, famously known for not having vast amounts of air (still have IR-radiation to help though).

          Edit: Probably ate the onion, didn’t I?

  • billwashere@lemmy.world
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    12 days ago

    Isn’t it incredibly difficult to shed heat in space since the only real way to move heat is radiation?

    • ssillyssadass@lemmy.world
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      12 days ago

      There are some various ways. Radiators can be large and thin, and as long as the heat-sensitive part of the thing is kept cool it doesn’t really matter how hot the rest of it gets.

  • HaraldvonBlauzahn@feddit.org
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    12 days ago

    What should that babble even mean?

    In a data center, you have 4 main problems:

    1. Get an massive amount of computers there, and maintain them to keep working, including repairs and upgrades
    2. Get an massive amount of data there and the results back
    3. Get a constant and massive flow of electrical power there
    4. Get an equally massive amount of heat away from it.

    Being in orbit helps with exactly none of that. For example, the heat: In orbit, there is no air or water which would work as a cooling medium, but just a vacuum which cools almost nothing. It is like a vacuum flask. Get your smart phone when running hot in such a vacuum flask and tell me how it worked…

    So what is the purpose of all that bullshit??

    • krooklochurm@lemmy.ca
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      12 days ago

      I’m talking out of my ass. So I’m not arguing with you but I’d think

      1. Fuck all to say to this. This would make 1 SO much more difficult.

      2. Seems feasible enough with satellites. Though the latency could be problematic I could see this being useful for certain applications.

      3. If it was in orbit you could build a nuclear reactor of some kind without worrying about the fallout from an explosion as much as you would on earth. Alternately, I’d imagine solar panels are more effective in space? You don’t need to worry about clouds or night time as much . I’d imagine they’re more effective in space but fucked if I know if that’s accurate

      4. This would be the real advantage here wouldn’t it? Isn’t space really, really cold? I’d imagine you could vent the heat from the data center or just fully expose it to the vacuum to keep the heat down, couldn’t you?

      • mangaskahn@lemmy.world
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        12 days ago

        Space isn’t cold, it’s nothing. It’s a vacuum and vacuum is terrible at heat transfer by convection. It’s why thermos bottles have a vacuum layer to prevent heat transfer. You can try to lose some heat by radiant cooling, but that’s slow and if you’re using solar for power then any radiators become heat sinks picking up more heat from the sun. Then there’s conduction, and again, there’s really nowhere to conduct any heat to, what with the large distance between objects and the vacuum and all. Thermal management in space is kind of a hard problem.

        • ssillyssadass@lemmy.world
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          12 days ago

          If it was impossible to remove heat from things in space we wouldn’t have spacecraft or satellites. We wouldn’t have a permanently manned research outpost in orbit. Hell, the Earth would probably be a big molten ball of lava. But we can effectively remove heat from an in-vacuum system that produces its own heat, all you need are radiators. If it’s radiating too slowly, you get a bigger radiator.

          • mangaskahn@lemmy.world
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            12 days ago

            I didn’t say it was impossible, I said it was hard. Bigger radiators absorb more heat when exposed to the sun. One of the problems becomes keeping the solar panels exposed to sunlight while keeping the radiators out of it. Putting them behind the solar panels might work, but they have to be smaller than the solar panels and any energy the solar panels don’t convert to electricity will be re-radiated as heat and picked up by the radiators, requiring a larger size. You could put them on the 'back" side of the spacecraft, but that limits the size. As mentioned in another comment, you could position the spacecraft in geostationary orbit on the terminator, but then reaction mass requirements for station keeping and data signal latency go way up. It’s a problem that has been worked around by people much smarter than me, but a lot of work went into figuring it out.

  • Dogiedog64@lemmy.world
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    12 days ago

    Come on now, people can’t actually be humoring this fever dream, can they? It’s just so fucking stupid…

  • Mike@lemmy.ca
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    12 days ago

    Even if this was an economically sound proposal, the next X45 magnitude solar flare might be a nasty surprise for reliability metrics…

    Edit: at some point, this would also likely contribute to Kessler Syndrome, but at least we’d have chat bots.