A comparison of bounding approach with isotopic correction factors and Monte Carlo sampling in burnup credit method

One of the methodologies used in criticality safety analysis is burnup credit method, which allows considering fuel burnup in models with spent fuel. This removes excessive conservatism from the analysis, but it also brings new uncertainties originating from computational prediction of spent fuel co...

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Autores principales:	Haroková Pavlína, Lovecký Martin
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	bounding approach monte carlo sampling burnup credit scale Physics QC1-999
Acceso en línea:	https://doaj.org/article/de1e76b63d8c459b92a15dac8dd56399
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id	oai:doaj.org-article:de1e76b63d8c459b92a15dac8dd56399
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spelling	oai:doaj.org-article:de1e76b63d8c459b92a15dac8dd563992021-12-02T17:12:46ZA comparison of bounding approach with isotopic correction factors and Monte Carlo sampling in burnup credit method2100-014X10.1051/epjconf/202125307011https://doaj.org/article/de1e76b63d8c459b92a15dac8dd563992021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/07/epjconf_animma2021_07011.pdfhttps://doaj.org/toc/2100-014XOne of the methodologies used in criticality safety analysis is burnup credit method, which allows considering fuel burnup in models with spent fuel. This removes excessive conservatism from the analysis, but it also brings new uncertainties originating from computational prediction of spent fuel composition. The burnup credit method offer several possibilities of how to deal with this problem, e.g. using bounding approach with correction factors on nuclide concentrations, which is simple, but still very conservative approach. Another option is Monte Carlo sampling, which aims at receiving the most realistic result as possible, but is very computationally demanding. In this work, we have analyzed correction factors for selected nuclides and compared the results of both methods on model of spent fuel storage pool. The results show how much conservative the bounding approach is – in this case, the multiplication factor was higher by almost 0.03 than in Monte Carlo sampling, exceeding the standard deviation by more than 5.4 times.Haroková PavlínaLovecký MartinEDP Sciencesarticlebounding approachmonte carlo samplingburnup creditscalePhysicsQC1-999ENEPJ Web of Conferences, Vol 253, p 07011 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bounding approach monte carlo sampling burnup credit scale Physics QC1-999
spellingShingle	bounding approach monte carlo sampling burnup credit scale Physics QC1-999 Haroková Pavlína Lovecký Martin A comparison of bounding approach with isotopic correction factors and Monte Carlo sampling in burnup credit method
description	One of the methodologies used in criticality safety analysis is burnup credit method, which allows considering fuel burnup in models with spent fuel. This removes excessive conservatism from the analysis, but it also brings new uncertainties originating from computational prediction of spent fuel composition. The burnup credit method offer several possibilities of how to deal with this problem, e.g. using bounding approach with correction factors on nuclide concentrations, which is simple, but still very conservative approach. Another option is Monte Carlo sampling, which aims at receiving the most realistic result as possible, but is very computationally demanding. In this work, we have analyzed correction factors for selected nuclides and compared the results of both methods on model of spent fuel storage pool. The results show how much conservative the bounding approach is – in this case, the multiplication factor was higher by almost 0.03 than in Monte Carlo sampling, exceeding the standard deviation by more than 5.4 times.
format	article
author	Haroková Pavlína Lovecký Martin
author_facet	Haroková Pavlína Lovecký Martin
author_sort	Haroková Pavlína
title	A comparison of bounding approach with isotopic correction factors and Monte Carlo sampling in burnup credit method
title_short	A comparison of bounding approach with isotopic correction factors and Monte Carlo sampling in burnup credit method
title_full	A comparison of bounding approach with isotopic correction factors and Monte Carlo sampling in burnup credit method
title_fullStr	A comparison of bounding approach with isotopic correction factors and Monte Carlo sampling in burnup credit method
title_full_unstemmed	A comparison of bounding approach with isotopic correction factors and Monte Carlo sampling in burnup credit method
title_sort	comparison of bounding approach with isotopic correction factors and monte carlo sampling in burnup credit method
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/de1e76b63d8c459b92a15dac8dd56399
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A comparison of bounding approach with isotopic correction factors and Monte Carlo sampling in burnup credit method

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