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Title: Enhancements to BISON U-Zr Metallic Fuel X447 Example Problem

Abstract

As development of a metallic fuel modeling capability in BISON has progressed, the need for an example problem used as a comparison basis was observed. Collaborative work between researchers at Los Alamos National Laboratory (LANL) and Idaho National Laboratory (INL) then proceeded to determine a viable rod to use as the basis and create a BISON input deck utilizing as many metallic fuel models as feasible. The basis chosen was what would be considered a generic rod from subassembly X447, an assembly irradiated in EBR-II towards the end of its operating life, heavily based on reported data for fuel pin DP11. Thus, the approach was adopted to use flow characteristics from subassembly X447 as a basis for the convective heat transfer solution, power history and axial power profiles that are representative of rod DP11 from subassembly X447. The rod simulated is a U-10Zr wt% (U-22.5Zr at%) composition. A 2D-RZ mesh would be used to capture axial thermal hydraulic effects, axial swelling and stress-strain calculations over the full length of the rod. After initial work was invested, a refinement of the various models and input parameters was conducted to ensure consistency between operator-declared conditions, model input requirements and those represented inmore » the example problem. This report serves as a synopsis of the enhancements and refinements to the example problem conducted throughout the 2016 fiscal year.« less

Authors:
 [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1329651
Report Number(s):
LA-UR-16-27552
TRN: US1700395
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 97 MATHEMATICS AND COMPUTING; EBR-2 REACTOR; FUEL RODS; THERMAL HYDRAULICS; FUEL PINS; B CODES; URANIUM BASE ALLOYS; ZIRCONIUM ALLOYS; BINARY ALLOY SYSTEMS; CONVECTION; COMPUTERIZED SIMULATION; SWELLING; STRAINS; STRESSES

Citation Formats

Galloway, Jack D., Matthews, Christopher, and Unal, Cetin. Enhancements to BISON U-Zr Metallic Fuel X447 Example Problem. United States: N. p., 2016. Web. doi:10.2172/1329651.
Galloway, Jack D., Matthews, Christopher, & Unal, Cetin. Enhancements to BISON U-Zr Metallic Fuel X447 Example Problem. United States. doi:10.2172/1329651.
Galloway, Jack D., Matthews, Christopher, and Unal, Cetin. Fri . "Enhancements to BISON U-Zr Metallic Fuel X447 Example Problem". United States. doi:10.2172/1329651. https://www.osti.gov/servlets/purl/1329651.
@article{osti_1329651,
title = {Enhancements to BISON U-Zr Metallic Fuel X447 Example Problem},
author = {Galloway, Jack D. and Matthews, Christopher and Unal, Cetin},
abstractNote = {As development of a metallic fuel modeling capability in BISON has progressed, the need for an example problem used as a comparison basis was observed. Collaborative work between researchers at Los Alamos National Laboratory (LANL) and Idaho National Laboratory (INL) then proceeded to determine a viable rod to use as the basis and create a BISON input deck utilizing as many metallic fuel models as feasible. The basis chosen was what would be considered a generic rod from subassembly X447, an assembly irradiated in EBR-II towards the end of its operating life, heavily based on reported data for fuel pin DP11. Thus, the approach was adopted to use flow characteristics from subassembly X447 as a basis for the convective heat transfer solution, power history and axial power profiles that are representative of rod DP11 from subassembly X447. The rod simulated is a U-10Zr wt% (U-22.5Zr at%) composition. A 2D-RZ mesh would be used to capture axial thermal hydraulic effects, axial swelling and stress-strain calculations over the full length of the rod. After initial work was invested, a refinement of the various models and input parameters was conducted to ensure consistency between operator-declared conditions, model input requirements and those represented in the example problem. This report serves as a synopsis of the enhancements and refinements to the example problem conducted throughout the 2016 fiscal year.},
doi = {10.2172/1329651},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 30 00:00:00 EDT 2016},
month = {Fri Sep 30 00:00:00 EDT 2016}
}

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