Power Peaking Factor usnig MCNP5

  • Thread starter Thread starter zaidtaher
  • Start date Start date
  • Tags Tags
    Mcnp5 Power
AI Thread Summary
To calculate the Power Peaking Factor (PPF) for each assembly using MCNP 5, one must determine the local power density in the fuel and the average power density across the entire fuel volume. The PPF is defined as the ratio of these two densities. While calculating the average power density is straightforward, users may lack experience with the specific methods in MCNP 5 to achieve this. Guidance on the necessary steps or techniques within MCNP 5 for accurate PPF calculation is sought. Understanding these calculations is crucial for effective core modeling.
zaidtaher
Messages
14
Reaction score
0
I model the core using MCNP 5, and I want to calculate the PPF for each assembly, and I want a way to do that.
 
Engineering news on Phys.org
zaidtaher said:
I model the core using MCNP 5, and I want to calculate the PPF for each assembly, and I want a way to do that.
The power peaking factor is simply the ratio of the local power density (in the fuel) to the average power density of all the fuel. It should be pretty obvious how to determine the average power density over the fuel volume. I've not had that experience in MCNP5 however.
 
Hello everyone, I am currently working on a burnup calculation for a fuel assembly with repeated geometric structures using MCNP6. I have defined two materials (Material 1 and Material 2) which are actually the same material but located in different positions. However, after running the calculation with the BURN card, I am encountering an issue where all burnup information(power fraction(Initial input is 1,but output file is 0), burnup, mass, etc.) for Material 2 is zero, while Material 1...
Hi everyone, I'm a complete beginner with MCNP and trying to learn how to perform burnup calculations. Right now, I'm feeling a bit lost and not sure where to start. I found the OECD-NEA Burnup Credit Calculational Criticality Benchmark (Phase I-B) and was wondering if anyone has worked through this specific benchmark using MCNP6? If so, would you be willing to share your MCNP input file for it? Seeing an actual working example would be incredibly helpful for my learning. I'd be really...
Back
Top