A few options for obtaining TBR values
Use existing database and interpolation - option 1
Generate a new database of TBR values - option 2
- Using Nova to calculate the neutron wall loading
- Simulate many 1D neutronics models (spherical) with different materials and blanket thicknesses and obtain TBR.
- Predict TBR by knowing the neutron wall loading on each module and 1D neutronics results for a representation of the module (material and thickness)
Generate a new database of TBR values - option 3
- Use Nova generated geometry (STL) and Serpent to perform 3D simulation and calculate TBR.
- Repeat for many models and build build the database
Generate a new database of TBR values - option 3
- Example Serpent input file with Nova STL files and TBR tally
Generate a new database of TBR values - option 3
- Example simulation times on 1 core
number of particles simulated | TBR | Error (1 sigma) | CPU time for neutron transport simulation (s) |
---|---|---|---|
100 | 1.2 | 0.17349 | 1.05 |
1,000 | 1.15 | 0.03343 | 4.74 |
2,500 | 1.09 | 0.02032 | 11.1 |
5,000 | 1.05 | 0.014 | 21.1 |
10,000 | 1.11 | 0.0081 | 42.7 |
20,000 | 1.08 | 0.00636 | 84.6 |
100,000 | 1.09 | 0.00263 | 417.6 |
7mins
Generate a new database of TBR values - option 4
- Use Nova generated geometry (STEP) and MCNP to perform 3D simulation and calculate TBR.
- Convert STEP file to constructive solid geometry (CSG) using McCad or MCam
- Repeat for many models and build build the database
Generate a new database of TBR values - option 5
- Use Nova generated geometry (STEP) and MCNP to perform 3D simulation and calculate TBR.
- Convert STEP file to unstructured mesh geometry using Trelis or SnappyHexMesh
- Repeat for many models and build build the database
Generate TBR values on the fly
Use Nova generated geometry (STL) and Serpent to perform 3D simulation and calculate TBR.
TBR simulations
By Jonathan Shimwell
TBR simulations
fusion X presentation
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