Verification of a two-step code system MCS/RAST-F to fast reactor core analysis

RAST-F is a new full-core analysis code based on the two-step approach that couples a multi-group cross-section generation Monte-Carlo code MCS and a multi-group nodal diffusion solver. To demonstrate the feasibility of using MCS/RAST-F for fast reactor analysis, this paper presents the coupled noda...

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Main Authors: Tuan Quoc Tran, Alexey Cherezov, Xianan Du, Deokjung Lee
Format: Article
Language:English
Published: Elsevier 2022-05-01
Series:Nuclear Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573321006227
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author Tuan Quoc Tran
Alexey Cherezov
Xianan Du
Deokjung Lee
author_facet Tuan Quoc Tran
Alexey Cherezov
Xianan Du
Deokjung Lee
author_sort Tuan Quoc Tran
collection DOAJ
description RAST-F is a new full-core analysis code based on the two-step approach that couples a multi-group cross-section generation Monte-Carlo code MCS and a multi-group nodal diffusion solver. To demonstrate the feasibility of using MCS/RAST-F for fast reactor analysis, this paper presents the coupled nodal code verification results for the MET-1000 and CAR-3600 benchmark cores. Three different multi-group cross-section calculation schemes are employed to improve the agreement between the nodal and reference solutions. The reference solution is obtained by the MCS code using continuous-energy nuclear data. Additionally, the MCS/RAST-F nodal solution is verified with results based on cross-section generated by collision probability code TULIP. A good agreement between MCS/RAST-F and reference solution is observed with less than 120 pcm discrepancy in keff and less than 1.2% root-mean-square error in power distribution. This study confirms the two-step approach MCS/RAST-F as a reliable tool for the three-dimensional simulation of reactor cores with fast spectrum.
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spelling doaj.art-0dc3c3f570bd4de1bb79f900101e6dcf2022-12-21T23:14:07ZengElsevierNuclear Engineering and Technology1738-57332022-05-0154517891803Verification of a two-step code system MCS/RAST-F to fast reactor core analysisTuan Quoc Tran0Alexey Cherezov1Xianan Du2Deokjung Lee3Department of Nuclear Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Ulsan, 44919, Republic of KoreaDepartment of Nuclear Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Ulsan, 44919, Republic of KoreaSchool of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, ChinaDepartment of Nuclear Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Ulsan, 44919, Republic of Korea; Corresponding author.RAST-F is a new full-core analysis code based on the two-step approach that couples a multi-group cross-section generation Monte-Carlo code MCS and a multi-group nodal diffusion solver. To demonstrate the feasibility of using MCS/RAST-F for fast reactor analysis, this paper presents the coupled nodal code verification results for the MET-1000 and CAR-3600 benchmark cores. Three different multi-group cross-section calculation schemes are employed to improve the agreement between the nodal and reference solutions. The reference solution is obtained by the MCS code using continuous-energy nuclear data. Additionally, the MCS/RAST-F nodal solution is verified with results based on cross-section generated by collision probability code TULIP. A good agreement between MCS/RAST-F and reference solution is observed with less than 120 pcm discrepancy in keff and less than 1.2% root-mean-square error in power distribution. This study confirms the two-step approach MCS/RAST-F as a reliable tool for the three-dimensional simulation of reactor cores with fast spectrum.http://www.sciencedirect.com/science/article/pii/S1738573321006227Fast reactorNodal diffusion codeRAST-FTPEN
spellingShingle Tuan Quoc Tran
Alexey Cherezov
Xianan Du
Deokjung Lee
Verification of a two-step code system MCS/RAST-F to fast reactor core analysis
Nuclear Engineering and Technology
Fast reactor
Nodal diffusion code
RAST-F
TPEN
title Verification of a two-step code system MCS/RAST-F to fast reactor core analysis
title_full Verification of a two-step code system MCS/RAST-F to fast reactor core analysis
title_fullStr Verification of a two-step code system MCS/RAST-F to fast reactor core analysis
title_full_unstemmed Verification of a two-step code system MCS/RAST-F to fast reactor core analysis
title_short Verification of a two-step code system MCS/RAST-F to fast reactor core analysis
title_sort verification of a two step code system mcs rast f to fast reactor core analysis
topic Fast reactor
Nodal diffusion code
RAST-F
TPEN
url http://www.sciencedirect.com/science/article/pii/S1738573321006227
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AT alexeycherezov verificationofatwostepcodesystemmcsrastftofastreactorcoreanalysis
AT xianandu verificationofatwostepcodesystemmcsrastftofastreactorcoreanalysis
AT deokjunglee verificationofatwostepcodesystemmcsrastftofastreactorcoreanalysis