fullsquare

u/fullsquare@awful.systems
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There's plenty shore NPPs cooled with seawater so it's at least partially solved problem, not that these are right people to solve it. Guess they'll fail in disruptive and innovative ways. Seawater also only touches one side of heat exchanger, that is until it rusts through. The expensive things should have deionized water running through them

I bet that things will corrode anyway, because of sea spray

⚠️⚠️[IMPORTANT EDIT: it was later clarified that the person who originally posted the proof was already aware that it was buggy, and chose not to be clear about this up front, as a humorous way to file a bug. It's pretty clear from the discussion threads that plenty of qualified people did not immediately realize it was meant to be a bug report.]⚠️⚠️

on Boiling the ocean · c/microblogmemes · 5 pts · 3d

AC also needs to deal with line resistance, and cheap, efficient multi-MW, multi-kV DC/DC converters aren't there so far, but there are prototypes (and drop-in transformer replacements https://en.wikipedia.org/wiki/Solid-state_transformer) Advantage is that these converters can be more efficient than transformers and you don't have to deal with reactive current (if DC). Obvious downside is that frequency control isn't there

on Boiling the ocean · c/microblogmemes · 4 pts · 3d

if power electronics get a bit better than they are now, we could switch to DC power transmission and DC/DC converters instead of transformers. bunch of infrastructure could be replaced one by one, but benefit is slight except for already used undersea cables

but on generation side, it's either photovoltaics or spin a magnet

if you looked at what is going on, you would see that bulk of the missing energy in hungarian grid is supplied from czech and slovak grids, where half or so energy is supplied from nuclear powerplants that don't have such problems https://app.electricitymaps.com/map/zone/CZ/72h/hourly

not to mention the french, who put bunch of their reactors near shore and won't ever have problems with cooling, and so export 10-15GW every day

It's easier to see that this circuit is rather symmetric when you redraw it

Then with both switches closed blue wire (the one in the middle) should only carry small current. If both halves are exactly the same it should be zero

In general when circuit doesn't include nonlinear components (semiconductors most commonly) you can sum two valid solutions and you'll get another valid solution. Note that when one switch is closed, current in blue wire goes one way and when the other is closed, in opposite way

i think that poking a pressurized vessel is a bad idea in general, whether it is attached to a hostile robot or not. it's gonna be LOUD and perhaps throw fragments, or take way longer than practical depending on what it was made from. (what if only one of two is damaged?) there are so many things that can go wrong with the alleged failsafe (what if pressure drops slower than designed?)