Codes and methods improvements for safety assessment and LTO: varied approaches

Nuclear safety has always been at the heart of the concerns of nuclear power plant operators and developers, as well as of various nuclear research organizations and regulatory authorities. Over the last decades, all these nuclear actors have developed and integrated a large number of calculation co...

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Main Authors: Cagnac Albannie, Verrier Denis, Pištora Vladislav
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:EPJ Nuclear Sciences & Technologies
Online Access:https://www.epj-n.org/articles/epjn/full_html/2023/01/epjn220011/epjn220011.html
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author Cagnac Albannie
Verrier Denis
Pištora Vladislav
author_facet Cagnac Albannie
Verrier Denis
Pištora Vladislav
author_sort Cagnac Albannie
collection DOAJ
description Nuclear safety has always been at the heart of the concerns of nuclear power plant operators and developers, as well as of various nuclear research organizations and regulatory authorities. Over the last decades, all these nuclear actors have developed and integrated a large number of calculation codes and other tools into their safety work. From the system approach to the local understanding of a phenomenon on a given component, from neutronics to operation optimization for long-term operation, these methods and codes have been constantly evolving since their appearance, in order to be able to integrate new plant designs and components, to improve the results of modeling physical phenomena or quantify and thus reduce the uncertainties on these results. Currently, several H2020 Euratom projects are working on the improvement of these codes and methods. This article will focus on three of these projects: CAMIVVER (Codes And Methods Improvements for VVER comprehensive safety assessment), APAL (Advanced PTS Analysis for LTO), and sCO2-4-NPP (innovative SCO2-based heat removal technology for an increased level of safety of Nuclear Power Plants) in order to illustrate our thinking on the improvement of calculation frameworks. First, we will present the work and the approach adopted with regard to the different calculation codes and methods used in each of these three projects. We will then conclude with an overall analysis of these three approaches, highlighting the difficulties and successes of these three projects, and identifying areas of work for the general improvement of the calculation codes.
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spelling doaj.art-4ec1ab88dd704fd1aff336bde32a6a2e2023-06-09T09:20:33ZengEDP SciencesEPJ Nuclear Sciences & Technologies2491-92922023-01-0192010.1051/epjn/2023001epjn220011Codes and methods improvements for safety assessment and LTO: varied approachesCagnac Albannie0Verrier Denis1Pištora Vladislav2EDF – R&DFRAMATOMEÚJV Řež, a. s.Nuclear safety has always been at the heart of the concerns of nuclear power plant operators and developers, as well as of various nuclear research organizations and regulatory authorities. Over the last decades, all these nuclear actors have developed and integrated a large number of calculation codes and other tools into their safety work. From the system approach to the local understanding of a phenomenon on a given component, from neutronics to operation optimization for long-term operation, these methods and codes have been constantly evolving since their appearance, in order to be able to integrate new plant designs and components, to improve the results of modeling physical phenomena or quantify and thus reduce the uncertainties on these results. Currently, several H2020 Euratom projects are working on the improvement of these codes and methods. This article will focus on three of these projects: CAMIVVER (Codes And Methods Improvements for VVER comprehensive safety assessment), APAL (Advanced PTS Analysis for LTO), and sCO2-4-NPP (innovative SCO2-based heat removal technology for an increased level of safety of Nuclear Power Plants) in order to illustrate our thinking on the improvement of calculation frameworks. First, we will present the work and the approach adopted with regard to the different calculation codes and methods used in each of these three projects. We will then conclude with an overall analysis of these three approaches, highlighting the difficulties and successes of these three projects, and identifying areas of work for the general improvement of the calculation codes.https://www.epj-n.org/articles/epjn/full_html/2023/01/epjn220011/epjn220011.html
spellingShingle Cagnac Albannie
Verrier Denis
Pištora Vladislav
Codes and methods improvements for safety assessment and LTO: varied approaches
EPJ Nuclear Sciences & Technologies
title Codes and methods improvements for safety assessment and LTO: varied approaches
title_full Codes and methods improvements for safety assessment and LTO: varied approaches
title_fullStr Codes and methods improvements for safety assessment and LTO: varied approaches
title_full_unstemmed Codes and methods improvements for safety assessment and LTO: varied approaches
title_short Codes and methods improvements for safety assessment and LTO: varied approaches
title_sort codes and methods improvements for safety assessment and lto varied approaches
url https://www.epj-n.org/articles/epjn/full_html/2023/01/epjn220011/epjn220011.html
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