Sensitivity Analysis of FEAST-Metal Fuel Performance Code: Initial Results

Edelmann, Paul Guy¹  Williams, Brian J.¹  Unal, Cetin¹  Yacout, Abdellatif² 

[1]Los Alamos National Laboratory

[2]Argonne National Laboratories

关键词: ANL;    CALIBRATION;    CREEP;    FISSION;    KINETICS;    LANL;    PERFORMANCE;    PRECIPITATION;    SENSITIVITY;    SENSITIVITY ANALYSIS;    SIMULATION;    VALIDATION;   

DOI  :  10.2172/1044860
RP-ID  :  LA-UR-12-22514
PID  :  OSTI ID: 1044860
Others  :  TRN: US1203573

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

This memo documents the completion of the LANL milestone, M3FT-12LA0202041, describing methodologies and initial results using FEAST-Metal. The FEAST-Metal code calculations for this work are being conducted at LANL in support of on-going activities related to sensitivity analysis of fuel performance codes. The objective is to identify important macroscopic parameters of interest to modeling and simulation of metallic fuel performance. This report summarizes our preliminary results for the sensitivity analysis using 6 calibration datasets for metallic fuel developed at ANL for EBR-II experiments. Sensitivity ranking methodology was deployed to narrow down the selected parameters for the current study. There are approximately 84 calibration parameters in the FEAST-Metal code, of which 32 were ultimately used in Phase II of this study. Preliminary results of this sensitivity analysis led to the following ranking of FEAST models for future calibration and improvements: fuel conductivity, fission gas transport/release, fuel creep, and precipitation kinetics. More validation data is needed to validate calibrated parameter distributions for future uncertainty quantification studies with FEAST-Metal. Results of this study also served to point out some code deficiencies and possible errors, and these are being investigated in order to determine root causes and to improve upon the existing code models.