A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Loading optimization algorithm for solving assembly assignment problem in the final disposal of spent nuclear fuel in Finland
Tekijät: Eronen Ville-Pekka, Ranta Timo, Huttunen Jani AS, Mäkelä Marko M
Kustantaja: ELSEVIER SCIENCE SA
Julkaisuvuosi: 2023
Journal: Nuclear Engineering and Design
Tietokannassa oleva lehden nimi: NUCLEAR ENGINEERING AND DESIGN
Lehden akronyymi: NUCL ENG DES
Artikkelin numero: 112105
Vuosikerta: 402
Sivujen määrä: 13
ISSN: 0029-5493
DOI: https://doi.org/10.1016/j.nucengdes.2022.112105
Verkko-osoite: https://doi.org/10.1016/j.nucengdes.2022.112105
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/178740848
In Finland, the final disposal of spent nuclear fuel assemblies includes inserting them into disposal canisters being disposed of in bedrock. This final disposal will be a century long process. The choice of which fuel assemblies are assigned to which canisters determines the decay heat powers of canisters. A loading optimization algorithm to make these choices is developed. The assembly assignment problem is formulated as a multiobjective mixed-integer nonlinear programming problem, but the loading optimization algorithm will solve the problem heuristically. The developed algorithm can be seen as a new version of the algorithm to solve the minimax canister formation problem, where canisters disposed of in the near future are considered more carefully than the rest of the canisters being more exposed to uncertainties related to schedule and predicted decay heat powers of future fuel assemblies. Furthermore, new constraints and objectives have been taken into account. The developed loading optimization algorithm facilitates the safe and cost-efficient assignments of fuel assemblies to canisters in Finland.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
