Sensitivity/Uncertainty Analysis for BWR Configurations of Exercise I-2 of UAM Benchmark

García Herranz, Nuria and Garrido, J. and Cabellos de Francisco, Oscar Luis (2014). Sensitivity/Uncertainty Analysis for BWR Configurations of Exercise I-2 of UAM Benchmark. In: "PHYSOR 2014", September 28 - October 3, 2014, Kyoto, Japan. pp. 1-8. https://doi.org/10.11484/jaea-conf-2014-003.

Description

Title: Sensitivity/Uncertainty Analysis for BWR Configurations of Exercise I-2 of UAM Benchmark
Author/s:
  • García Herranz, Nuria
  • Garrido, J.
  • Cabellos de Francisco, Oscar Luis
Item Type: Presentation at Congress or Conference (Article)
Event Title: PHYSOR 2014
Event Dates: September 28 - October 3, 2014
Event Location: Kyoto, Japan
Title of Book: Proceedings of the International Conference on Physics of Reactors (PHYSOR2014)
Date: 2014
Subjects:
Freetext Keywords: lattice physics uncertainty propagation, sentitivity/uncertainty analysis, few-group homogenized cross section uncertainties
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Energética
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In order to evaluate the uncertainties in prediction of lattice-averaged parameters, input data of core neutronics codes, Exercise I-2 of the OECD benchmark for uncertainty anal-ysis in modeling (UAM) was proposed. This work aims to perform a sensitivity/uncertainty analysis of the BWR configurations defined in the benchmark for the purpose of Exercise I-2. Criticality calculations are done for a 7x7 BWR fresh fuel assembly at HFP in four configurations: single unrodded fuel assembly, rodded fuel assembly, assembly/reflector and assembly in a color-set. The SCALE6.1 code package is used to propagate cross section covariance data through lattice physics calculations to both k-effective and two-group assembly-homogenized cross sec-tions uncertainties. Computed sensitivities and uncertainties for all configurations are analyzed and compared. It was found that uncertainties are very similar for the four test-problems, showing that the influence of the assembly environment on uncertainty prediction is very small.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainP110530207UnspecifiedUnspecifiedPropagation of Uncertainties for Neutronic Calculations (P110530207) - Spanish Nuclear Safety Council (CSN)

More information

Item ID: 44365
DC Identifier: http://oa.upm.es/44365/
OAI Identifier: oai:oa.upm.es:44365
DOI: 10.11484/jaea-conf-2014-003
Official URL: http://rpg.jaea.go.jp/physor2014/
Deposited by: Memoria Investigacion
Deposited on: 11 Jan 2017 15:57
Last Modified: 30 Jan 2017 10:54
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