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DOE OSTI · 1716517

FY20 SAM Code Developments and Validations for Transient Safety Analysis of Advanced non-LWRs

Hu, R.·Hu, G.·Zou, L.·Klingberg, A.·Fei, T.·Nunez, D.
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Abstract

The System Analysis Module (SAM) is under development at Argonne National Laboratory as a modern system-level modeling and simulation tool for advanced non-light water reactor safety analyses. It utilizes the object-oriented application framework MOOSE to leverage the modern software environment and advanced numerical methods. The capabilities of SAM are being extended to enable the transient modeling, analysis, and design of various advanced nuclear reactor systems. This report summarizes major progress in SAM code development, capability enhancements, demonstration, and validation to support transient safety analysis of advanced non-LWRs. Rapid developments continued in fiscal year 2020 (FY20) to support various needs of the advanced reactor community, especially the NRC and industry on the licensing safety analysis of advanced reactor designs. Significant code changes were made to provide various capability enhancements, bug fixes, and user friendliness improvements. Major code updates are summarized in Section 1, while four important enhancements are detailed in Sections 2-5, including a multi-dimension flow model; reactivity feedback and decay heat models; control and trip system modeling, and additional fluid and solid thermophysical property models. Code validation activities in FY20 include using test data from the Fast Flux Test Facility (FFTF), the High Temperature Test Facility (HTTF), and several separate effects test facilities for pebble-bed modeling.

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Hu, R., Hu, G., Zou, L., Klingberg, A., Fei, T., Nunez, D.. 2020-09-01. FY20 SAM Code Developments and Validations for Transient Safety Analysis of Advanced non-LWRs. https://doi.org/10.2172/1716517

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