#Nuclear Turbine Testing

1 messages · Page 1 of 1 (latest)

subtle comet
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Hey all, I recently started working on my own nuclear blueprint to fit into my city block design, I haven't been able to get my turbines to consistently operate, I am in World Edit trying to use the EEI for power testing but anytime it runs half of the turbines shut off. Even filling it with steam from an infinity pipe didn't seem to fix it. I've tried pumps to pressurize the output but cannot figure it out. Would anyone be willing to take a look? It's a rather large blueprint and I don't have great internet access so sharing it could prove difficult. But I'll do what I can with some pictures.

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flint shell
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It's hard to tell from the screenshot, but it looks like you're trying to shove the steam from like 150 heat exchangers through 2 maybe 4 pipes?

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You can only send so much of a fluid through a pipe

subtle comet
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Essentially yes lol, ok, makes sense, about how many exchanges should I have per pipe?

flint shell
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+faq pipe throughput

noble treeBOT
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Pipe Throughput

The fluid amount on a pipe is how much is currently in THAT 1x1 pipe segment (same as a tank), not the rate of flow. (Pumps show actual flow rate if you want to see it.)

  1. https://factoriocheatsheet.com/#fluid-wagon-transfer
  2. https://wiki.factorio.com/Fluid_system#Pipelines
  3. https://forums.factorio.com/19851
    In short: Use underground pipes as much as possible, separate your flows into multiple pipelines (avoid cross-linking pipes), and space pumps evenly through the entire line to maintain pressure gradients.
    Remember: As long as there is even a small amount of fluid reaching the consumers, that amount is available to them every tick, meaning they can get 60x that value per second. A gradient is required for flow, but the output of a pipe can be nearly empty and still satisfy everything along it.
flint shell
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understanding how the fluid throughput works is important in designing a nuclear plant. The transfer rate of fluid is dependent not on distance between point A and B, but number of individual pipe pieces between them and between pumps

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It's a little weird how it works

subtle comet
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Which is why it recommends undergrounds, I thought that just had to do with flow though not total throughout, ok I'll do what I can to split up my pipe networks. Thank You!!

winged schooner
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I would also suggest installing Raiguard's Editor Extensions and using the Infinity Accumulator. You can't control in what priority the EEI draws power, so if you crank that up to 1000 GW and you have a 1 GW reactor, it's going to do damage. The Infinity Accumulator can effectively have passive draw where it will let all the machines draw their power and then let the accumulator draw the rest, letting your machines run full power while letting the reactor also feed full power.

celest shard
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hm.. that's an unconventional way of laying down heat pipes..
generally you wanna minimize the distance of heat pipes
if it's too long, further heat exchangers won't work cuz the heat doesn't spread fast enough (e.g: heat pipe reaches 1k deg near the reactor, but 300 degree in the middle of the way)

The following image is my 2x8 nuclear setup which outputs 2.4GW

SPOILER_image.png
winged schooner
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I don't think the heat flow would be a problem there. There is (supposed to be) a lot of heat being removed from the system early on, giving space for the rest to flow away

celest shard
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about draining the power, default editor accumulator would work with this setting

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celest shard
winged schooner
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It is impacted by flow rate somewhat similarly to regular pipes. If you start removing some of the "flow" early on it allows for a longer distance of travel before it caps out

celest shard
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And yes it is confirmed

winged schooner
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Is not even similar to what I'm arguing

celest shard
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Read my third line example above

winged schooner
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Is not even similar to what I'm arguing

celest shard
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there you go, denial person. you don't even bother explaining

winged schooner
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That's because I'm fucking making his entire fucking build in my test world

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Here, I've recreated it as a test, this is presuming you are both flawlessly providing water and flawlessly drawing steam out of the system. This provides a perfect test where the other inputs and the output doesn't interfere with how the heat flows. We've isolated the heat flow for this

image.png
old portal
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It looks cursed. Well done. 🙂

winged schooner
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The idea is thus: The Yellow boxed heat exchangers will have a good distance from the reactors. This essentially means that there is now flow issue from the reactor to these. This effectively makes it so you go from, say, 100 heat/s flow rate needed to, say, 66 h/s in the chokepoint at the top-left of the yellow boxed section. The orange boxed heat exchangers further reduce the necessary heat flow so that the next choke point merely need to deal with, say, 33 h/s.
This is what "branched flow" is, and it's exceptionally useful for needing to worry less about flow rates

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old portal
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Is there a way to easily color code separate fluid systems?

winged schooner
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The item on the left is similar to what OP has posted while you gave me examples of flow rate for the one on the right

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Oops, I misread the build and forgot about 40 heat exchangers

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The system sure does take a while to warm up fully. The reactors are at 940 and increasing by .03c per second, and the last of the heat exchangers are coming online and slowly going up themselves

celest shard
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fair enough

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maybe the double heat pipes helps to spread the heat better? i'm unsure

winged schooner
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So the reactor is at 960c while the final heat exchangers 8 are currently at 75/103, so while I think there may not be lossiness (it'll be close), it certainly proves the effectiveness of branched flow designs.
The double heat piping certainly does! Your graphic you shared early represents this :) though it's not a 2x flow rate boost

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Honestly I think the heat could flow even further if the single-pipe chokepoints introduced very early on in the branched pattern were adjusted/fixed, namely here

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celest shard
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confirmed, double heat pipes indeed boost its the abillity to spread..
so that's why my single heat pipe wouldn't work on previous build

thanks for the elaboration

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winged schooner
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Cores are around 965c while the final heat exchangers were around 95 steam/s. Being perfectly to-ratio essentially just means that if you're perfectly drawing all of the steam, you're technically not going to reach exactly 103 steam/s, you'll just forever slowly get closer and closer, and it's going to forever slowly go slower

mortal ridge