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DOE OSTI · 3028395

SCM overview & the EBR-II shutdown heat removal tests validation.

Kyriakopoulos, Vasileios [Idaho National Laboratory] (ORCID:0000000244315480)·Tano Retamales, Mauricio Eduardo [Idaho National Laboratory] (ORCID:0000000334173869)·Karahan, Aydin [Argonne National Laboratory]
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Abstract

Pronghorn is an engineering-scale, coarse-mesh, thermal-hydraulics tool for supporting reactor-core simulations of advanced nuclear reactors. Most of the current efforts in Pronghorn have been devoted in developing porous finite-volume capabilities and adapting closure correlations for coarse-mesh thermal-hydraulics modeling. However, for liquid-metal reactors (LMRs) with wire-wrapped fuel pin assemblies, a pin-level thermal-hydraulic resolution is required for most safety case studies (pin rupture, channel blockage, etc.). For this purpose, a new Subchannel application is developed in MOOSE, which affords the required flow field resolution, while still preserving an engineering-scale approach. This new solver can be natively coupled to Pronghorn and other MOOSE objects to enable full-core, multi-physics, multi-scale engineering studies. This presentation presents the main features of the SCM code and demonstrates a validation case based on the EBR-II SHRT tests.

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21 - SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS22 - GENERAL STUDIES OF NUCLEAR REACTORS42 - ENGINEERING97 - MATHEMATICS AND COMPUTINGEBR-IILMFRSCMSFRSubchannelThermal-Hydraulics

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Kyriakopoulos, Vasileios [Idaho National Laboratory] (ORCID:0000000244315480), Tano Retamales, Mauricio Eduardo [Idaho National Laboratory] (ORCID:0000000334173869), Karahan, Aydin [Argonne National Laboratory]. 2025-03-13. SCM overview & the EBR-II shutdown heat removal tests validation.. https://www.osti.gov/biblio/3028395

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