Uncertainties impact on the major FOMs for severe accidents in CANDU 6 nuclear power plant

In the nuclear safety studies, a new trend refers to the evaluation of uncertainties as a mandatory component of best-estimate safety analysis which is a modern and technically consistent approach being known as BEPU (Best Estimate Plus Uncertainty).The major objectives of this study consist in perf...

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Main Authors: R.M. Nistor-Vlad, D. Dupleac, G.L. Pavel
Format: Article
Language:English
Published: Elsevier 2023-07-01
Series:Nuclear Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573323001699
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author R.M. Nistor-Vlad
D. Dupleac
G.L. Pavel
author_facet R.M. Nistor-Vlad
D. Dupleac
G.L. Pavel
author_sort R.M. Nistor-Vlad
collection DOAJ
description In the nuclear safety studies, a new trend refers to the evaluation of uncertainties as a mandatory component of best-estimate safety analysis which is a modern and technically consistent approach being known as BEPU (Best Estimate Plus Uncertainty).The major objectives of this study consist in performing a study of uncertainties/sensitivities of the major analysis results for a generic CANDU 6 Nuclear Power Plant during Station Blackout (SBO) progression to understand and characterize the sources of uncertainties and their effects on the key figure-of-merits (FOMs) predictions in severe accidents (SA).The FOMs of interest are hydrogen mass generation and event timings such as the first fuel channel failure time, beginning of the core disassembly time, core collapse time and calandria vessel failure time. The outcomes of the study, will allow an improvement of capabilities and expertise to perform uncertainty and sensitivity analysis with severe accident codes for CANDU 6 Nuclear Power Plant.
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spelling doaj.art-43937c7bc49c4e988a7ea7348f633a112023-06-23T04:42:48ZengElsevierNuclear Engineering and Technology1738-57332023-07-0155726702677Uncertainties impact on the major FOMs for severe accidents in CANDU 6 nuclear power plantR.M. Nistor-Vlad0D. Dupleac1G.L. Pavel2Corresponding author.; Power Production and Usage Department, Faculty of Power Engineering, University Politehnica of Bucharest, Splaiul Independenței 313, Bucharest, 060042, RomaniaPower Production and Usage Department, Faculty of Power Engineering, University Politehnica of Bucharest, Splaiul Independenței 313, Bucharest, 060042, RomaniaPower Production and Usage Department, Faculty of Power Engineering, University Politehnica of Bucharest, Splaiul Independenței 313, Bucharest, 060042, RomaniaIn the nuclear safety studies, a new trend refers to the evaluation of uncertainties as a mandatory component of best-estimate safety analysis which is a modern and technically consistent approach being known as BEPU (Best Estimate Plus Uncertainty).The major objectives of this study consist in performing a study of uncertainties/sensitivities of the major analysis results for a generic CANDU 6 Nuclear Power Plant during Station Blackout (SBO) progression to understand and characterize the sources of uncertainties and their effects on the key figure-of-merits (FOMs) predictions in severe accidents (SA).The FOMs of interest are hydrogen mass generation and event timings such as the first fuel channel failure time, beginning of the core disassembly time, core collapse time and calandria vessel failure time. The outcomes of the study, will allow an improvement of capabilities and expertise to perform uncertainty and sensitivity analysis with severe accident codes for CANDU 6 Nuclear Power Plant.http://www.sciencedirect.com/science/article/pii/S1738573323001699CANDU ReactorsSevere accidentRELAP/SCDAPSIMBest-estimate plus uncertainty
spellingShingle R.M. Nistor-Vlad
D. Dupleac
G.L. Pavel
Uncertainties impact on the major FOMs for severe accidents in CANDU 6 nuclear power plant
Nuclear Engineering and Technology
CANDU Reactors
Severe accident
RELAP/SCDAPSIM
Best-estimate plus uncertainty
title Uncertainties impact on the major FOMs for severe accidents in CANDU 6 nuclear power plant
title_full Uncertainties impact on the major FOMs for severe accidents in CANDU 6 nuclear power plant
title_fullStr Uncertainties impact on the major FOMs for severe accidents in CANDU 6 nuclear power plant
title_full_unstemmed Uncertainties impact on the major FOMs for severe accidents in CANDU 6 nuclear power plant
title_short Uncertainties impact on the major FOMs for severe accidents in CANDU 6 nuclear power plant
title_sort uncertainties impact on the major foms for severe accidents in candu 6 nuclear power plant
topic CANDU Reactors
Severe accident
RELAP/SCDAPSIM
Best-estimate plus uncertainty
url http://www.sciencedirect.com/science/article/pii/S1738573323001699
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