Kovarex in a row anyone?

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mrvn
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Re: Kovarex in a row anyone?

Post by mrvn »

Khagan wrote: ↑
Wed Oct 27, 2021 9:04 pm
With the deliberate overfilling approach, avoiding overfilling only matters during the startup phase. Pre-Kovarex a large stockpile of surplus U238 will have accumulated, and that stockpile is unlikely to be used up during the startup. So it's a pretty safe bet that the U238 output will be fully backed up while it needs to be. And afterwards, who cares?
That really depends on where that output belt leads. At the start for example I would make that lead to an array of chests to dump all the excess dark uranium to get enough light uranium produced. Later it might go to a train station and then every time a train arrives it all drains away.

If you feed it directly into an assembler making nuclear fuel then I don't expect there to be a problem. Demand is really low there.

With the opposite priorities the overfill and ramp up of production happens sooner so that's how I would set it.

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Khagan
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Re: Kovarex in a row anyone?

Post by Khagan »

mrvn wrote: ↑
Wed Oct 27, 2021 11:57 pm
Khagan wrote: ↑
Wed Oct 27, 2021 9:04 pm
Pre-Kovarex a large stockpile of surplus U238 will have accumulated, and that stockpile is unlikely to be used up during the startup. So it's a pretty safe bet that the U238 output will be fully backed up while it needs to be.
That really depends on where that output belt leads. At the start for example I would make that lead to an array of chests to dump all the excess dark uranium to get enough light uranium produced. Later it might go to a train station and then every time a train arrives it all drains away.
I agree with this right up until 'it all drains away'. Which 'all'? During the ramp-up it's indeed likely that all or almost all of the stored U235 is loaded onto the uranium delivery train each time it comes home. But you won't be draining all the U238 until you've worked through the contents of that array of chests.

mrvn
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Re: Kovarex in a row anyone?

Post by mrvn »

Khagan wrote: ↑
Thu Oct 28, 2021 12:28 am
mrvn wrote: ↑
Wed Oct 27, 2021 11:57 pm
Khagan wrote: ↑
Wed Oct 27, 2021 9:04 pm
Pre-Kovarex a large stockpile of surplus U238 will have accumulated, and that stockpile is unlikely to be used up during the startup. So it's a pretty safe bet that the U238 output will be fully backed up while it needs to be.
That really depends on where that output belt leads. At the start for example I would make that lead to an array of chests to dump all the excess dark uranium to get enough light uranium produced. Later it might go to a train station and then every time a train arrives it all drains away.
I agree with this right up until 'it all drains away'. Which 'all'? During the ramp-up it's indeed likely that all or almost all of the stored U235 is loaded onto the uranium delivery train each time it comes home. But you won't be draining all the U238 until you've worked through the contents of that array of chests.
With "all" I mean the few dark uranium on the belt loop.

At the start there is no U238 and no U235. Then the first set of centrifuges start and produce some. The second set of centrifuges pick up a bit of U238 and the rest just goes into the chest. It will never back up or you didn't use enough chests. You have to store all that U238 so more U235 can be produced. Prevents the nice no-overfill magic from working some of the time.

Once the covarex process runs you are right. When you switch over to emptying the chests you probably won't get them empty for a long time at least. It's a bunch of train cars full to get the first 40 light uranium. I hear some people put it in a wooden chest and shoot it.

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Re: Kovarex in a row anyone?

Post by quyxkh »

Just for reference, I switched my bp to keep separate in and out counts, to handle a real ore-processing feed with random the 0.7% U-235.

For the S3'd version, four cs6 ore-processing centrifuges and three cs8 kovarex centrifuges
  • 31738, 32994, 38505, 34122 ticks to get their first '235 out after gettng their 40th '235 in, so the worst was 10m41s.
  • Running the build for an hour produced at least 18.9/m, I saw up to 19.4 but that's just Getting Real Lucky with the ore processing. 18.9*60 is 1134/hr and up on average when you keep the minimal buffering.
  • Buffering 40 more '235 after the line started bearing fruit (by cutting and replacing the feedback wires on the buffer-count accumulators) goosed the output to 24.7/m and up, 1482/hr.
With the S1'd version, 4x cs3 ore processing feeding 3x cs3.8 kovarex,
  • 59225, 57596, 44678(!), 50486, so the worst was 16m27
  • The minimal-buffering output stabilized at at least 10.2/m, 612/hr (I saw as high as 630)
  • With full buffering the output stabilized at at least 11.9/m, 714/hr (not much upside)
The S3'd real-ore-processing version I used:

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