On the intra-granular behaviour of a cocktail of inert gases in oxide nuclear fuel: Methodological recommendation for accelerated experimental investigation

Besides recent progresses in the physics-based modelling of fission gas and helium behaviour, the scarcity of experimental data concerning their combined behaviour (i.e., cocktail) hinders further model developments. For this reason, in this work, we propose a modelling methodology aimed at providin...

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Main Authors: M. Romano, D. Pizzocri, L. Luzzi
Format: Article
Language:English
Published: Elsevier 2022-05-01
Series:Nuclear Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573321006501
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author M. Romano
D. Pizzocri
L. Luzzi
author_facet M. Romano
D. Pizzocri
L. Luzzi
author_sort M. Romano
collection DOAJ
description Besides recent progresses in the physics-based modelling of fission gas and helium behaviour, the scarcity of experimental data concerning their combined behaviour (i.e., cocktail) hinders further model developments. For this reason, in this work, we propose a modelling methodology aimed at providing recommendations for accelerated experimental investigations. By exploring a wide range of annealing temperatures and cocktail compositions with a physics-based modelling approach we identify the most interesting conditions to be targeted by future experiments. To corroborate the recommendations arising from the proposed methodology, we include a sensitivity analysis quantifying the impact of the model parameters on fission gas and helium release, in conditions representative of high and low burnup.
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spelling doaj.art-aab0c7abe0e34410afbd24841f35c1282022-12-21T18:59:57ZengElsevierNuclear Engineering and Technology1738-57332022-05-0154519291934On the intra-granular behaviour of a cocktail of inert gases in oxide nuclear fuel: Methodological recommendation for accelerated experimental investigationM. Romano0D. Pizzocri1L. Luzzi2Politecnico di Milano, Department of Energy, Nuclear Engineering Division, Via La Masa 34, 20156, Milano, ItalyPolitecnico di Milano, Department of Energy, Nuclear Engineering Division, Via La Masa 34, 20156, Milano, ItalyCorresponding author.; Politecnico di Milano, Department of Energy, Nuclear Engineering Division, Via La Masa 34, 20156, Milano, ItalyBesides recent progresses in the physics-based modelling of fission gas and helium behaviour, the scarcity of experimental data concerning their combined behaviour (i.e., cocktail) hinders further model developments. For this reason, in this work, we propose a modelling methodology aimed at providing recommendations for accelerated experimental investigations. By exploring a wide range of annealing temperatures and cocktail compositions with a physics-based modelling approach we identify the most interesting conditions to be targeted by future experiments. To corroborate the recommendations arising from the proposed methodology, we include a sensitivity analysis quantifying the impact of the model parameters on fission gas and helium release, in conditions representative of high and low burnup.http://www.sciencedirect.com/science/article/pii/S1738573321006501Helium behaviourFission gas behaviourSCIANTIXDesign of experimentInert gas cocktail
spellingShingle M. Romano
D. Pizzocri
L. Luzzi
On the intra-granular behaviour of a cocktail of inert gases in oxide nuclear fuel: Methodological recommendation for accelerated experimental investigation
Nuclear Engineering and Technology
Helium behaviour
Fission gas behaviour
SCIANTIX
Design of experiment
Inert gas cocktail
title On the intra-granular behaviour of a cocktail of inert gases in oxide nuclear fuel: Methodological recommendation for accelerated experimental investigation
title_full On the intra-granular behaviour of a cocktail of inert gases in oxide nuclear fuel: Methodological recommendation for accelerated experimental investigation
title_fullStr On the intra-granular behaviour of a cocktail of inert gases in oxide nuclear fuel: Methodological recommendation for accelerated experimental investigation
title_full_unstemmed On the intra-granular behaviour of a cocktail of inert gases in oxide nuclear fuel: Methodological recommendation for accelerated experimental investigation
title_short On the intra-granular behaviour of a cocktail of inert gases in oxide nuclear fuel: Methodological recommendation for accelerated experimental investigation
title_sort on the intra granular behaviour of a cocktail of inert gases in oxide nuclear fuel methodological recommendation for accelerated experimental investigation
topic Helium behaviour
Fission gas behaviour
SCIANTIX
Design of experiment
Inert gas cocktail
url http://www.sciencedirect.com/science/article/pii/S1738573321006501
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