A burnup credit methodology for PWR spent fuel storage pools: Application to a standard PWR nuclear power plant
[EN] This paper proposes a methodology for burnup credit of spent nuclear fuel (SNF) pool storage based on the axial burnup of the fuel assemblies. Following the NRC guidance and normative for NPP safety, axial burnup profiles from a database were analysed, and a conservative theoretical profile tha...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/207471 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/207471 |
| Access Level: | acceso abierto |
| Palabra clave: | Burnup credit Spent fuel PWR Storage pools Scale code system Axial burnup INGENIERIA NUCLEAR 06.- Garantizar la disponibilidad y la gestión sostenible del agua y el saneamiento para todos 09.- Desarrollar infraestructuras resilientes, promover la industrialización inclusiva y sostenible, y fomentar la innovación 13.- Tomar medidas urgentes para combatir el cambio climático y sus efectos |
| Sumario: | [EN] This paper proposes a methodology for burnup credit of spent nuclear fuel (SNF) pool storage based on the axial burnup of the fuel assemblies. Following the NRC guidance and normative for NPP safety, axial burnup profiles from a database were analysed, and a conservative theoretical profile that fits the safety conditions was obtained. This profile sets a limit on the upper criticality of the assemblies, and it is used to obtain the pool loading curve, which dictates if a fuel assembly fits to be loaded in the studied SNF pool based on its initial enrichment level and burnup. Although it takes burnup credit, this methodology follows strict safety normative and is deemed suitable for further analysis in SNF pools. This methodology can be used to conservatively reduce the requisites for the storage of spent fuel by establishing a burnup profile that bounds all other profiles. This approach allows for more flexibility in the spent fuel pool loading. |
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