fullsquare

joined 10 months ago
[–] fullsquare@awful.systems 3 points 1 month ago

There is a thermal energy storage included as s major part. This works because compressing CO2 to 55atm adiabatically heats it up to some 450-ish C, so that heat is pretty high grade, and only the final stage cools it down with heat exchanger open to air. In discharging direction, some heat is taken from outside air to evaporate part of CO2 and heat stored is used up

[–] fullsquare@awful.systems 14 points 1 month ago* (last edited 1 month ago)

compressors, turbines (like steam turbines), piping, some of which heat-resistant (500C), container for liquid carbon dioxide, lots of plastic for the bubble, something for thermal storage, dry and clean carbon dioxide, these aren't unusual or restricted resources, don't depend on critical raw materials or anything like that

[–] fullsquare@awful.systems 14 points 1 month ago* (last edited 1 month ago)

Compressed air without heat recovery is more like 30%, so this is huge

Carbon dioxide can be liquefied relatively easily which is what i guess makes this efficient

[–] fullsquare@awful.systems 10 points 1 month ago* (last edited 1 month ago) (1 children)

wood, magnesium, aluminum, plastics, they say titanium is bad, but i'd expect iron, nickel, manganese, tungsten, silver, maybe zinc to be worse

[–] fullsquare@awful.systems 6 points 1 month ago (1 children)

I get the same thing but within EU only for 30 PLN per month, on prepaid (7,3€/mo)

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

apparently ww1 era british soldiers figured out that cordite works like amyl but shittier (more specifically, nitroglycerin part) https://pdfs.semanticscholar.org/abaf/009c8713aadd8accbb03b2b40a93b5c3c77a.pdf

[–] fullsquare@awful.systems 1 points 1 month ago* (last edited 1 month ago)

it's hacky and wrong. or you could use different hardware, maybe from competition, because result isn't worth electricity it used

[–] fullsquare@awful.systems 4 points 1 month ago (2 children)

gpus as used for genai aren't really suitable for normal loads like aerodynamic simulations, genai uses low precision data like fp8, fp4, blackwells and such are optimized for it so hard that you can't really do anything else on this thing

[–] fullsquare@awful.systems 14 points 1 month ago (1 children)

"article" is entirely too charitable, this is a substack post

[–] fullsquare@awful.systems 6 points 1 month ago

🌏👨‍🚀🔫👨‍🚀 (currently since 2023)

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