MULTI-PHYSICS TRANSIENT SIMULATIONS WITH TRIPOLI-4®

In this work, we present the first dynamic calculations performed with the Monte Carlo neutron transport code TRIPOLI-4R with thermal-hydraulics feedback. For this purpose, the Monte Carlo code was extended for multi-physics capabilities and coupled to the thermal-hydraulics subchannel code SUBCHANF...

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Main Authors: Faucher Margaux, Mancusi Davide, Zoia Andrea
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:EPJ Web of Conferences
Subjects:
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_07019.pdf
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spelling doaj-87095fb72e74464bb466eebe1c5520082021-08-02T16:00:50ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012470701910.1051/epjconf/202124707019epjconf_physor2020_07019MULTI-PHYSICS TRANSIENT SIMULATIONS WITH TRIPOLI-4®Faucher Margaux0Mancusi Davide1Zoia Andrea2Den-Service d’Etudes des Réacteurs et de Mathématiques Appliquées (SERMA), CEA, Université Paris-SaclayDen-Service d’Etudes des Réacteurs et de Mathématiques Appliquées (SERMA), CEA, Université Paris-SaclayDen-Service d’Etudes des Réacteurs et de Mathématiques Appliquées (SERMA), CEA, Université Paris-SaclayIn this work, we present the first dynamic calculations performed with the Monte Carlo neutron transport code TRIPOLI-4R with thermal-hydraulics feedback. For this purpose, the Monte Carlo code was extended for multi-physics capabilities and coupled to the thermal-hydraulics subchannel code SUBCHANFLOW. As a test case for the verification of transient simulation capabilities, a 3x3-assembly mini-core benchmark based on the TMI-1 reactor is considered with a pin-by-pin description. Two reactivity excursion scenarios initiated by control-rod movement are simulated starting from a critical state and compared to analogous simulations performed using the Serpent 2 Monte-Carlo code. The time evolution of the neutron power, fuel temperature, coolant temperature and coolant density are analysed to assess the multi-physics capabilities of TRIPOLI-4. The stabilizing e_ects of thermal-hydraulics on the neutron power appear to be well taken into account. The computational requirements for massively parallel calculations are also discussed.https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_07019.pdfmonte carlo simulationneutron transportmulti-physicstransientsdynamic
collection DOAJ
language English
format Article
sources DOAJ
author Faucher Margaux
Mancusi Davide
Zoia Andrea
spellingShingle Faucher Margaux
Mancusi Davide
Zoia Andrea
MULTI-PHYSICS TRANSIENT SIMULATIONS WITH TRIPOLI-4®
EPJ Web of Conferences
monte carlo simulation
neutron transport
multi-physics
transients
dynamic
author_facet Faucher Margaux
Mancusi Davide
Zoia Andrea
author_sort Faucher Margaux
title MULTI-PHYSICS TRANSIENT SIMULATIONS WITH TRIPOLI-4®
title_short MULTI-PHYSICS TRANSIENT SIMULATIONS WITH TRIPOLI-4®
title_full MULTI-PHYSICS TRANSIENT SIMULATIONS WITH TRIPOLI-4®
title_fullStr MULTI-PHYSICS TRANSIENT SIMULATIONS WITH TRIPOLI-4®
title_full_unstemmed MULTI-PHYSICS TRANSIENT SIMULATIONS WITH TRIPOLI-4®
title_sort multi-physics transient simulations with tripoli-4®
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2021-01-01
description In this work, we present the first dynamic calculations performed with the Monte Carlo neutron transport code TRIPOLI-4R with thermal-hydraulics feedback. For this purpose, the Monte Carlo code was extended for multi-physics capabilities and coupled to the thermal-hydraulics subchannel code SUBCHANFLOW. As a test case for the verification of transient simulation capabilities, a 3x3-assembly mini-core benchmark based on the TMI-1 reactor is considered with a pin-by-pin description. Two reactivity excursion scenarios initiated by control-rod movement are simulated starting from a critical state and compared to analogous simulations performed using the Serpent 2 Monte-Carlo code. The time evolution of the neutron power, fuel temperature, coolant temperature and coolant density are analysed to assess the multi-physics capabilities of TRIPOLI-4. The stabilizing e_ects of thermal-hydraulics on the neutron power appear to be well taken into account. The computational requirements for massively parallel calculations are also discussed.
topic monte carlo simulation
neutron transport
multi-physics
transients
dynamic
url https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_07019.pdf
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AT mancusidavide multiphysicstransientsimulationswithtripoli4
AT zoiaandrea multiphysicstransientsimulationswithtripoli4
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