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DOE OSTI · 3020808

STAT7 v2.0 Verification and Validation Report

Wilson, Graham S. [Argonne National Laboratory (ANL), Argonne, IL (United States)]·Yoon, Dhongik S. [Argonne National Laboratory (ANL), Argonne, IL (United States)]·Wang, Guanyi [Argonne National Laboratory (ANL), Argonne, IL (United States)]·Rudolph, Joshua R. [Argonne National Laboratory (ANL), Argonne, IL (United States)]·Thomas, Justin W. [Argonne National Laboratory (ANL), Argonne, IL (United States)]·Wilson, Erik H. [Argonne National Laboratory (ANL), Argonne, IL (United States)]
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Abstract

This report documents the software testing which has been performed for STAT7 Version 2.0 (hereafter STAT7 v2.0), a code for the statistical propagation of uncertainties in steady-state thermal hydraulics (TH) analysis of plate-fueled research and test reactors. The key capabilities addressed in this testing were selected based on the use of the software for analysis work supporting the conversion to low-enriched uranium fuel of U.S. High-Performance Research Reactors (USHPRR) such as the Massachusetts Institute of Technology Research Reactor (MITR-II). This testing scope includes comparison of the code’s statistical processing capabilities using statistical tests, comparison of coolant property evaluations to NIST data tables, and systematic comparison of key TH solver capabilities to the results of hand calculations and to predictions from PLTEMP/ANL Version 4.4. The

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22 GENERAL STUDIES OF NUCLEAR REACTORS97 MATHEMATICS AND COMPUTING

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Wilson, Graham S. [Argonne National Laboratory (ANL), Argonne, IL (United States)], Yoon, Dhongik S. [Argonne National Laboratory (ANL), Argonne, IL (United States)], Wang, Guanyi [Argonne National Laboratory (ANL), Argonne, IL (United States)], Rudolph, Joshua R. [Argonne National Laboratory (ANL), Argonne, IL (United States)], Thomas, Justin W. [Argonne National Laboratory (ANL), Argonne, IL (United States)], Wilson, Erik H. [Argonne National Laboratory (ANL), Argonne, IL (United States)]. 2025-01-01. STAT7 v2.0 Verification and Validation Report. https://doi.org/10.2172/3020808

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