- #1
Syifa S
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- TL;DR Summary
- I need help with MCNPX error: "LCS error: bert.3 bert.2 .... " when running a BURN card. Tried to expand the KSRC, but failed.
Hello,
I'm working on BURN UP analysis on a NuScale PWR with variations on U235 enrichment and the number of Gd2O3 burnable poisons rods used. I use KCODE and KSRC card as attached below. I'm having trouble with the error message on the output file. At first, I fixed that by increasing the number of KSRC I used, starting from the middle part of the core until expanding towards the outside of the core (but only on the middle assembly). But I ran into an error again. So I continued to expand the fuel pin used in the middle assembly, but there were still some variations that were not successful, only one or two variations succeeded. I also tried to use another fuel pin from another assembly, and I got the same result (I put the screenshot of the output file below). Does anyone know how to fix this?
^ above is the error message in the output file
^above is the reference I used to model the core
I'm working on BURN UP analysis on a NuScale PWR with variations on U235 enrichment and the number of Gd2O3 burnable poisons rods used. I use KCODE and KSRC card as attached below. I'm having trouble with the error message on the output file. At first, I fixed that by increasing the number of KSRC I used, starting from the middle part of the core until expanding towards the outside of the core (but only on the middle assembly). But I ran into an error again. So I continued to expand the fuel pin used in the middle assembly, but there were still some variations that were not successful, only one or two variations succeeded. I also tried to use another fuel pin from another assembly, and I got the same result (I put the screenshot of the output file below). Does anyone know how to fix this?
^ above is the error message in the output file
^above is the reference I used to model the core