I take it your pebble bed is a just-for-fun project at this point? Once you've achieved proper fission your pebble bed is now a bit deprecated.
ReactorCraft - clever reactor setups?
- Thread starter Pyure
- Start date
The fission design was created in SSP to see what would work. It uses plutonium as I mentioned, so I'm working on a breeder reactor design, but I'm slightly more experienced with those, so it shouldn't be an issue. The pebble bed is meant to be my power kick start, after that I get into fission and breeder reactors.
And I actually forgot about ammonia for LP turbines, I need to test that, it may be what I need. I've certainly got enough ammonium chloride to make some ammonia.
@Reika is there any where I can read the mechanics of the blocks? (Apart from trying to pull apart bits from your source code). I'm basically flying blind here, and I know you dislike people just being blind followers and copying. I'd love to come up with a design myself, but I'm in the dark at the moment.
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OK, trying to learn this and all the reactor stuff as i go along, without turning my base into a toxic wasteland. my question here is, for this setup, do i need to leave the white squares as air? or should i fill it with something like steel? and how about the bedrock alloy blocks for absorption around the edge. is that needed? do i need to cover everything or just the X/Z from the fuel cores?
in reguards to shielding material, what works? i heard steel, iron, concrete, bedrock alloy block... anything else? and how effective are they?
ok, after several hours and a couple test worlds getting the "will this break everything?" treatment I have come to the following conclusions -
1) use bedrock alloy around the the X/Z axis of the fuel cores. they only do straight line effects, so should be enough.
2) leave the squares as air. either they have no effect or placing items there has more of a cooling effect (more testing needed... perhaps iron or glass and see how that goes?)
3) concrete steel and bedrock alloy work. still not sure what else works. that may be all. that being said, per v9B (dont tell me to update, i cant, on a pub server and its up to the mod pack distro to do so) still not sure what the rate of absorbtion is. i think the 2 steel+1 BA/ rod+reflector+BA is overkill.
1) use bedrock alloy around the the X/Z axis of the fuel cores. they only do straight line effects, so should be enough.
2) leave the squares as air. either they have no effect or placing items there has more of a cooling effect (more testing needed... perhaps iron or glass and see how that goes?)
3) concrete steel and bedrock alloy work. still not sure what else works. that may be all. that being said, per v9B (dont tell me to update, i cant, on a pub server and its up to the mod pack distro to do so) still not sure what the rate of absorbtion is. i think the 2 steel+1 BA/ rod+reflector+BA is overkill.
There is a bug on V9B where neutrons are not properly absorbed, and still cause environmental radiation. Please be aware of this if you're going to use a fission reactor or breeder reactor on a multiplayer server
Filling air spaces next to boilers with anything (literally anything, in the same way that lava can be blocked with signs or ladders, etc.) acts as an insulator for that face and will slow radiant heat loss into the atmosphere from the boilers and, correspondingly, from the core. The guy who made that design might have left those spaces open to the air intentionally as a form of passive cooling. If you do plug those spaces with anything, keep an eye on your temperatures, especially if you've built that reactor in a desert as he did.
Just to elaborate on EyeDeck's link in case it's not clear what's happening, different materials have different rates of neutron absorption, where concrete has one of the lowest rates and bedrock alloy (BRA) has the highest (97.5% per block). Note that there is no block that provides fully 100% absorption. This is the reason that people stack shield blocks, even when using expensive BRA blocks; they are nudging the percent rate of absorption so that it approaches 100% (ie: a single BRA block captures all but an average of 2.5 out of 100 neutrons that escape into the environment and, of the 2.5% of neutrons that do escape, a second block would capture a further 97.5% of those, and so on).
Unless you don't care much about your surrounding environment, and believe me, given the right conditions, some really scary shit can happen if you don't; you'll really want to stack your radiation shield layers with the best materials that you can afford. Many people feel comfortable with a shield layer three blocks deep with BRA. Other materials may require more bulk depending on how you feel about irradiating your surroundings.
Just to elaborate on EyeDeck's link in case it's not clear what's happening, different materials have different rates of neutron absorption, where concrete has one of the lowest rates and bedrock alloy (BRA) has the highest (97.5% per block). Note that there is no block that provides fully 100% absorption. This is the reason that people stack shield blocks, even when using expensive BRA blocks; they are nudging the percent rate of absorption so that it approaches 100% (ie: a single BRA block captures all but an average of 2.5 out of 100 neutrons that escape into the environment and, of the 2.5% of neutrons that do escape, a second block would capture a further 97.5% of those, and so on).
Unless you don't care much about your surrounding environment, and believe me, given the right conditions, some really scary shit can happen if you don't; you'll really want to stack your radiation shield layers with the best materials that you can afford. Many people feel comfortable with a shield layer three blocks deep with BRA. Other materials may require more bulk depending on how you feel about irradiating your surroundings.
Thanks all for the info. its been helpful for sure. And yea i got the shielding thing and how it works (staring at pg 1000 io have been reading through the main thread... on pg 1110 or so XD) was just looking at percentages though
On that topic, i have yet to get a PBR to work at all. is there a thread for them? or any ideas? in creative i have tried a ton of things and thus far it totally has not worked at all.
On that topic, i have yet to get a PBR to work at all. is there a thread for them? or any ideas? in creative i have tried a ton of things and thus far it totally has not worked at all.
What did you try? They are a tad different from the others (afaik), as in they are meant to be stacked. Also the cores should surround the co2 heat exchanger, not the other way around.Thanks all for the info. its been helpful for sure. And yea i got the shielding thing and how it works (staring at pg 1000 io have been reading through the main thread... on pg 1110 or so XD) was just looking at percentages though
On that topic, i have yet to get a PBR to work at all. is there a thread for them? or any ideas? in creative i have tried a ton of things and thus far it totally has not worked at all.
A simple (very simple, and probably terrible inefficient, but usually working for me) design would be 4 layers of co2 heat exchanger, with 4 layers of cores on each side, resulting in 16 cores and 4 heat exchanger.
No idea how much turbines I had running with that, though. Shouldn't be all that much.
What did you try? They are a tad different from the others (afaik), as in they are meant to be stacked. Also the cores should surround the co2 heat exchanger, not the other way around.
A simple (very simple, and probably terrible inefficient, but usually working for me) design would be 4 layers of co2 heat exchanger, with 4 layers of cores on each side, resulting in 16 cores and 4 heat exchanger.
No idea how much turbines I had running with that, though. Shouldn't be all that much.
Mind you, I'm a bit behind in v9B - but thusfar i have done the following patterns
#1
Pc
#2
PP
PPC
#3
PPP
PCP
PPP
#4
PPP
PPP
PPPC
of course, they have been isolated on all sides. I did each style in 1y, 2y, 4y, and 6y deep configurations. Thus far #2 at a 6y has yielded the best results (1 heat exchange to about 5 steam boilers just barely drains hot co2)
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Eugene5348
Guest
Yep, but you only really need like 4 chambers to self-sustain, possibly fewer.
E
Eugene5348
Guest
Wait, what are we talking about?
I meant using a single co2 heat exchanger surrounded by 4 pebble bed reactor cores on each side, 4 layers high. From there, using a single heat exchanger with a single steam boiler.
Maybe it's also due to your water supply? I had it multiple times, that my steam boiler just didn't get enough water, to make steam out of it, hence didn't use up the hot co2.
Edit: While a single heat exchanger+steam boiler is enough to run at least 1 turbine, it's probably not the most efficient.
Wait, what are we talking about?
I meant using a single co2 heat exchanger surrounded by 4 pebble bed reactor cores on each side, 4 layers high. From there, using a single heat exchanger with a single steam boiler.
Maybe it's also due to your water supply? I had it multiple times, that my steam boiler just didn't get enough water, to make steam out of it, hence didn't use up the hot co2.
Edit: While a single heat exchanger+steam boiler is enough to run at least 1 turbine, it's probably not the most efficient.
pebble bed + co2. that's the different patters i have tried, at varying layers (1 layer, 2 layer, 4 layers and 6 layers) ..... what i was looking for was only a setup that was efficient enough to heat the co2 up constatntly (i need a high enough output to feed a turbine without a reactor :/ ). in the end it was the 4 pebble beds with 6 layers that worked the best. this was done without any steam boilers at all.
Uhm, what do you mean? That IS a reactor, or do you mean, produce enough to save up steam, so when your reactor doesnt run you can still startup the turbine?
Maybe some screens would help, I'll try to make a basic example later on, if I remember to do so..
no reactors that can irradiate the area. The issue is more trying to build a large enough seup that i can run the HP-turbine off off a HTGR setup. What i have seen thusfar is i will need to make 4-5 PBR setups and feed 4-5 heat exchanges. each exchange can do 4-5 boilers. so provided i can keep up with the water (shouldn't be an issue) then i should be able to get it running and keep it running.
Is there on/off valves for the steam line by any chance? i would assume there is but i have not found them thus far in my searches through the book or NEI
Can't be done, Reactorcraft steam is flagged with the reactor type that produced it (fission, htgr, fusion etc), and the HPT is deliberately coded not to work with HTGR steam.