Are there any experience converting HWR initially fueled with NU to LEU, besides the National Reserch Reactor in Canada which went from NU to HEU to LEU?
As far as I've read, the burnup was reduced after the Chernobyl accident, but after the addition of 0.4 % of erbium to the fuel the burnup was bumped up again.
Yeah, I was interested in the technical issues with increased burnup. If an increased burnup would not be possible without...
Hi
I'm wondering what puts the limits to the burn-up of RBMK fuel. Is it the build up of fission products or the fuel simply running out of sufficient u-235 to sustain a chain reaction?
The average burn-up of RBMK is between 20 - 30 GWd/tU...
As far as I understand plutonium production is mainly a function of the spesific burn-up. A low burn-up of under 1000 MWd/tU is preferred to produce weapongs-grade plutonium. The higher the burn-up the more pu-240 and other plutonium isotopes that makes production of weapons a bit more difficult...
Don't you need the whole core to get the correct flux?
Is there a way to get the outputfile to read neutrons/cm^2 s or will it only give up the relative flux?
When calculating the flux in KENO do you mean by the help of KMART?
I tried to use NEWT, but it was not happy when I tried to run the model with 150 fuel assemblies, and it crashed.. Seems I can only make NEWT work with one-few fuel bundles, and that does not exactly help me place targets..
I have visited the notebook forum, but the Triton section has not had a new post in over two years, so I'm not sure if is still active.
I want to determine the activity of mo-99 in uranium targets surrounding a reactor core. But I'm unsure what input parameters to choose for the burn-up...
Hi
I'm wondering if anyone has experience working with the triton depletion code for SCALE? I'm having some issues when I'm trying to calculate the activity in radioisotope targets surrounding my reactor core.
I have to admit that I've never used this Geewiz and SCALE before, so I'm starting out low here.
I'm wondring if anyone has the geewiz help manual available? I get a error when I click help inside the program, and geewiz can't find the file geewizhelp.chm. If there is a short introduction /...
What programs model nuclear reactors and can determine if the reactor goes critical or not? It would be a big advantage if the given programs are open source as well, since the ones that cost money evidently cost a lot.
I might be able to get hold of SCALE 6.1, but that program/code would be...
Then you assume they use RBMK fuel rods? I just can't figure out why they want to use modified RBMK fuel rods. Is not fuel rods the least difficult thing to manufacture for a advanced nuclear state?
To be sure, when literature says "the core" they mean the active region of the fuel rods...
With the data from the three reactors I have I end up with this result:
NRU (fueled with LEU): energy density: 11,9 MWth / m3
Candu (fueled with SEU): energy density: 7,64 MWth / m3
Dhurva (fuel with natural uranium): energy density: 7,41 MWth / m3
Taking Iran on its word that IR-40 is...
Yeah, I read about that. But that makes no sense to me. Why are they making RBMK looking fuel intended for IR-40, but have operated a heavy water production plant (HWPP) next door for the last four five years.
Can RBMK fuel even work in a HWR reactor? Are not the fuel rods spaced to tight...
I found a crude estimate by comparing IR-40 with Dhurva in India and NRU in Canada. Dhruva and NRU's cores are cylindrical with the diameter the same as the height. By assuming that condition for IR-40 and taking the energy density of Dhruva I found the dimensions of IR-40. But that was only two...