Sorry, I have two questions regarding the shuffle option and modelling of control rods. I'm working on the modelling of a lead-cooled reactor using Serpent 2.1.24. I need to take into account extraction of control rod banks during burnup. I was thinking to create several lattices representing control rod banks at different state of extraction (for example, completely inserted, 30% in the core etc.). After a certain number of burnup steps, I wanted to replace one lattice by another one (for example, completely inserted would be replaced by 30% inserted) using the "shuffle" option, then this procedure is repeated until the complete exaction of control rods.
1) Is there other technique that can be used for such type of problem?
2) When I am trying to use the "shuffle" option in Serpent 2.1.24, I am getting the following error: Invalid numerical entry "shuffle"
Code: Select all
set power 8.00E6 dep daystep 1 500 set power 8.00E6 dep daystep 1 500 shuffle 12 13
Thank you very much in advance for your time!