An Inline Burn-up Algorithm: Proposal and Preliminary Analysis

Paul Cosgrove (Corresponding author), Eugene Shwageraus, Jaakko Leppänen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


A new burn-up algorithm is proposed for coupling neutronics and isotopic depletion. The algorithm is analogous to those proposed for enforcing xenon equilibrium and converging neutronics and thermal-hydraulics. During the corrector step of standard predictor-corrector methods, the corrector nuclide density is updated as neutronics converges. This is expected to improve stability while reducing computational expense compared to other implicit algorithms. The stability of the algorithm is investigated by Fourier analysis for a simple case.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Physics of Reactors (PHYSOR 2022)
PublisherAmerican Nuclear Society (ANS)
Number of pages10
ISBN (Electronic)978-0-89448-787-3
Publication statusPublished - 20 May 2022
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Physics of Reactors (PHYSOR 2022)
- Pittsburgh, United States
Duration: 15 May 202220 May 2022


ConferenceInternational Conference on Physics of Reactors (PHYSOR 2022)
Abbreviated titlePHYSOR 2022
Country/TerritoryUnited States
Internet address


  • Burn-up
  • Stability


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