Sensitivity and uncertainty analyses for advanced nuclear systems (ALFRED, ASTRID, ESFR and MYRRHA)

Sonia Panizo, C. Alfonso, A. Jiménez-Carrascosa, N. García-Herranz, V. Bécares, P. Romojaro, F. Álvarez-Velarde, O. Cabellos, A. Cuesta-Matesanz, L. Fiorito, A. Stankovskiy, G. Van den Eynde

    Research outputpeer-review

    Abstract

    Within the frame of the EU H2020 program SANDA project, sensitivity and uncertainty analyses have been performed for the ESFR, ASTRID and ALFRED reactor concepts and the multi-purpose flexible irradiation facility MYRRHA. Relevant reactor parameters, namely the effective multiplication factor, the effective delayed neutron fraction, the Doppler reactivity coefficient, the void worth and the worth of control rods have been investigated. SCALE, Serpent 2 and MCNP6.2+SUMMON codes together with the covariance data of the JEFF-3.3 nuclear data library have been used for this study. A ranking of the most important isotopes and reactions impacting the mentioned parameters has been derived for all these systems. Uncertainties have been quantified and have been found to be higher than the target accuracies proposed. Therefore, recommendations for improvement of nuclear data are given.

    Original languageEnglish
    Article number105207
    Number of pages16
    JournalProgress in Nuclear Energy
    Volume172
    DOIs
    StatePublished - Jul 2024

    Funding

    The research leading to these outcomes has received funding from the Euratom research and innovation programme under Grant Agreement Number 754501 (ESFR-SMART) and Grant Agreement Number 847552 (SANDA), and the ESNII\uFF0B project of the 7th Framework Programme (FP7-Fission-2013\u2013605172). Also, this work has been supported by the ENRESA-CIEMAT agreements \u201CTrasmutaci\u00F3n de Radionucleidos de Vida Larga como Soporte a la Gesti\u00F3n de Residuos Radiactivos de Alta Actividad\u201D and \u201CTecnolog\u00EDas Disponibles para la Transmutaci\u00F3n de Radionucleidos de Vida Larga\u201D. Serpent and SCALE were obtained through NEA Computer Program Services and MCNP 6.2 has been obtained through RSICC. The research leading to these outcomes has received funding from the Euratom research and training programme 2014\u20132018 under Grant Agreement Number 754501 (ESFR-SMART) and the Grant Agreement Number 847552 (SANDA), and the ESNII\uFF0Bproject of the 7th Framework Programme (FP7-Fission-2013\u2013605172). Also, this work has been supported by the ENRESA-CIEMAT agreements \u201CTrasmutaci\u00F3n de Radionucleidos de Vida Larga como Soporte a la Gesti\u00F3n de Residuos Radiactivos de Alta Actividad\u201D and \u201CTecnolog\u00EDas Disponibles para la Transmutaci\u00F3n de Radionucleidos de Vida Larga\u201D. Serpent and SCALE were obtained through NEA and MCNP 6.2 has been obtained through RSICC.

    FundersFunder number
    Oak Ridge National Laboratory (ORNL) Radiation Safety Information Computational Center (RSICC)
    Horizon Europe754501
    Euratom 7th Framework ProgrammeFP7-Fission-2013–605172

      ASJC Scopus subject areas

      • Nuclear Energy and Engineering
      • Safety, Risk, Reliability and Quality
      • Energy Engineering and Power Technology
      • Waste Management and Disposal

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