Passive Autocatalytic Recombiner Perfomance Assessment Using COCOSYS

Autores

  • hugo pontes Instituto de Pesquisas Energéticas (IPEN) , Instituto de Pesquisas Energéticas (IPEN)
    • gil teixeira ,
      • julian shorto ,
        • Alfredo abe ,
          • Cláudia Giovedi ,

            DOI:

            https://doi.org/10.15392/2319-0612.2022.1906

            Palavras-chave:

            Hydrogen, Passive Autocatalytic Recombiners, THAI test facility, Severe Accidents.

            Resumo

            The progression of a severe accident in nuclear reactors is composed by a diversity of phenomena that are
            Beyond Design Basis, such as Direct Containment Heating (DCH), Molten Corium Concrete Interaction
            (MCCI), hydrogen detonation, and others. Currently, there are several devices and systems that allow
            mitigating the progression of this events, avoiding the failure of the physical barriers between the nuclear
            power plant and the environmental. In this context, the present work aims to reproduce the HR-14
            experiment carried out at the Thermal-hydraulic, Hydrogen, Aerosols and Iodine (THAI) test facility through
            the Passive Autocatalytic Recombiners (PAR) performance assessment with the COCOSYS code. The analysis
            of the convergence of the results was performed using the Fast Fourier Transform Based Method (FFTBM)
            and showed that the results had sufficient accuracy with the experimental data.

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            Publicado

            29-10-2022

            Edição

            Seção

            INAC 2021_XXII ENFIR_VII_ENIN