Assessment of the 2D/1D implementation in mpact

Benjamin Collins; Shane Stimpson; Andrew Godfrey; Brendan Kochunas; Thomas Downar

Assessment of the 2D/1D implementation in mpact

Benjamin Collins, Shane Stimpson, Andrew Godfrey, Brendan Kochunas, Thomas Downar

Research and Test Reactor Physics

Research output: Contribution to conference › Paper › peer-review

12 Scopus citations

Abstract

The 2D/1D method is used in the MPACT code to obtain 3D solutions of the Boltzmann transport equation for practical reactor geometries. The OECD C5G7 transport benchmark problem is used first to assess the accuracy of the method with a fixed set of cross-sections. The VERA Core Physics Progression Problems are then used to compare the accuracy of the transport solver using a 56-group library based on ENDFB-VII.0. Single assembly PWR designs are simulated, and the eigenvalue and pin powers are compared to continuous-energy Monte Carlo results. A 3×3 assembly cluster with a control rod inserted into the center assembly is then compared to Monte Carlo to assess the ability of MPACT to predict a control rod worth curve. Finally, MPACT is used to simulate the initial critical states of a full 3D initial core of a PWR at zero power conditions.

Original language	English
State	Published - 2014
Event	2014 International Conference on Physics of Reactors, PHYSOR 2014 - Kyoto, Japan Duration: Sep 28 2014 → Oct 3 2014

Conference

Conference	2014 International Conference on Physics of Reactors, PHYSOR 2014
Country/Territory	Japan
City	Kyoto
Period	09/28/14 → 10/3/14

Funding

This research was supported by the Consortium for Advanced Simulation of Light Water Reactors (www.casl.gov), an Energy Innovation Hub (http://www.energy.gov/hubs) for Modeling and Simulation of Nuclear Reactors under U.S. Department of Energy Contract No. DE-AC05-00OR22725. This research was supported by the Consortium for Advanced Simulation of Light Water Reactors (www.casl.gov), an Energy Innovation Hub (http://www.energy.gov/hubs) for Modeling This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.

Keywords

2D/1D
CASL
MPACT

Cite this

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title = "Assessment of the 2D/1D implementation in mpact",

abstract = "The 2D/1D method is used in the MPACT code to obtain 3D solutions of the Boltzmann transport equation for practical reactor geometries. The OECD C5G7 transport benchmark problem is used first to assess the accuracy of the method with a fixed set of cross-sections. The VERA Core Physics Progression Problems are then used to compare the accuracy of the transport solver using a 56-group library based on ENDFB-VII.0. Single assembly PWR designs are simulated, and the eigenvalue and pin powers are compared to continuous-energy Monte Carlo results. A 3×3 assembly cluster with a control rod inserted into the center assembly is then compared to Monte Carlo to assess the ability of MPACT to predict a control rod worth curve. Finally, MPACT is used to simulate the initial critical states of a full 3D initial core of a PWR at zero power conditions.",

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author = "Benjamin Collins and Shane Stimpson and Andrew Godfrey and Brendan Kochunas and Thomas Downar",

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TY - CONF

T1 - Assessment of the 2D/1D implementation in mpact

AU - Collins, Benjamin

AU - Stimpson, Shane

AU - Godfrey, Andrew

AU - Kochunas, Brendan

AU - Downar, Thomas

PY - 2014

Y1 - 2014

N2 - The 2D/1D method is used in the MPACT code to obtain 3D solutions of the Boltzmann transport equation for practical reactor geometries. The OECD C5G7 transport benchmark problem is used first to assess the accuracy of the method with a fixed set of cross-sections. The VERA Core Physics Progression Problems are then used to compare the accuracy of the transport solver using a 56-group library based on ENDFB-VII.0. Single assembly PWR designs are simulated, and the eigenvalue and pin powers are compared to continuous-energy Monte Carlo results. A 3×3 assembly cluster with a control rod inserted into the center assembly is then compared to Monte Carlo to assess the ability of MPACT to predict a control rod worth curve. Finally, MPACT is used to simulate the initial critical states of a full 3D initial core of a PWR at zero power conditions.

AB - The 2D/1D method is used in the MPACT code to obtain 3D solutions of the Boltzmann transport equation for practical reactor geometries. The OECD C5G7 transport benchmark problem is used first to assess the accuracy of the method with a fixed set of cross-sections. The VERA Core Physics Progression Problems are then used to compare the accuracy of the transport solver using a 56-group library based on ENDFB-VII.0. Single assembly PWR designs are simulated, and the eigenvalue and pin powers are compared to continuous-energy Monte Carlo results. A 3×3 assembly cluster with a control rod inserted into the center assembly is then compared to Monte Carlo to assess the ability of MPACT to predict a control rod worth curve. Finally, MPACT is used to simulate the initial critical states of a full 3D initial core of a PWR at zero power conditions.

KW - 2D/1D

KW - CASL

KW - MPACT

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M3 - Paper

AN - SCOPUS:85059351501

T2 - 2014 International Conference on Physics of Reactors, PHYSOR 2014

Y2 - 28 September 2014 through 3 October 2014

ER -

Assessment of the 2D/1D implementation in mpact

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Keywords

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