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Title: FY 2016 Status Report on the Modeling of the M8 Calibration Series using MAMMOTH

Abstract

This report provides a summary of the progress made towards validating the multi-physics reactor analysis application MAMMOTH using data from measurements performed at the Transient Reactor Test facility, TREAT. The work completed consists of a series of comparisons of TREAT element types (standard and control rod assemblies) in small geometries as well as slotted mini-cores to reference Monte Carlo simulations to ascertain the accuracy of cross section preparation techniques. After the successful completion of these smaller problems, a full core model of the half slotted core used in the M8 Calibration series was assembled. Full core MAMMOTH simulations were compared to Serpent reference calculations to assess the cross section preparation process for this larger configuration. As part of the validation process the M8 Calibration series included a steady state wire irradiation experiment and coupling factors for the experiment region. The shape of the power distribution obtained from the MAMMOTH simulation shows excellent agreement with the experiment. Larger differences were encountered in the calculation of the coupling factors, but there is also great uncertainty on how the experimental values were obtained. Future work will focus on resolving some of these differences.

Authors:
 [1];  [1];  [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1364502
Report Number(s):
INL/EXT-16-40023
TRN: US1703360
DOE Contract Number:  
AC07-05ID14517
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; COMPUTERIZED SIMULATION; MONTE CARLO METHOD; COMPARATIVE EVALUATIONS; TREAT REACTOR; STEADY-STATE CONDITIONS; M8CAL; MAMMOTH; Modeling; TREAT; Validation

Citation Formats

Baker, Benjamin Allen, Ortensi, Javier, and DeHart, Mark David. FY 2016 Status Report on the Modeling of the M8 Calibration Series using MAMMOTH. United States: N. p., 2016. Web. doi:10.2172/1364502.
Baker, Benjamin Allen, Ortensi, Javier, & DeHart, Mark David. FY 2016 Status Report on the Modeling of the M8 Calibration Series using MAMMOTH. United States. doi:10.2172/1364502.
Baker, Benjamin Allen, Ortensi, Javier, and DeHart, Mark David. Thu . "FY 2016 Status Report on the Modeling of the M8 Calibration Series using MAMMOTH". United States. doi:10.2172/1364502. https://www.osti.gov/servlets/purl/1364502.
@article{osti_1364502,
title = {FY 2016 Status Report on the Modeling of the M8 Calibration Series using MAMMOTH},
author = {Baker, Benjamin Allen and Ortensi, Javier and DeHart, Mark David},
abstractNote = {This report provides a summary of the progress made towards validating the multi-physics reactor analysis application MAMMOTH using data from measurements performed at the Transient Reactor Test facility, TREAT. The work completed consists of a series of comparisons of TREAT element types (standard and control rod assemblies) in small geometries as well as slotted mini-cores to reference Monte Carlo simulations to ascertain the accuracy of cross section preparation techniques. After the successful completion of these smaller problems, a full core model of the half slotted core used in the M8 Calibration series was assembled. Full core MAMMOTH simulations were compared to Serpent reference calculations to assess the cross section preparation process for this larger configuration. As part of the validation process the M8 Calibration series included a steady state wire irradiation experiment and coupling factors for the experiment region. The shape of the power distribution obtained from the MAMMOTH simulation shows excellent agreement with the experiment. Larger differences were encountered in the calculation of the coupling factors, but there is also great uncertainty on how the experimental values were obtained. Future work will focus on resolving some of these differences.},
doi = {10.2172/1364502},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2016},
month = {Thu Sep 01 00:00:00 EDT 2016}
}

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