Comparative evaluation of response reliability during accidents in light water reactors and fast reactors

To identify functions and facilities that are critical for ensuring safety in advanced reactors, for which only a limited usage history is available, it is necessary to consider the characteristics of each reactor type by utilizing more risk-related information. In this study, we compare the respons...

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Autores principales:	Masaaki SUZUKI, Kazuyuki DEMACHI, Shigeru TAKAYA, Yoshitaka CHIKAZAWA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	risk resilience response reliability safety assessment accident management light water reactor fast reactor Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/440339ede4664ef0a2cb384a38d9c45f
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spelling	oai:doaj.org-article:440339ede4664ef0a2cb384a38d9c45f2021-11-29T05:59:27ZComparative evaluation of response reliability during accidents in light water reactors and fast reactors2187-974510.1299/mej.19-00570https://doaj.org/article/440339ede4664ef0a2cb384a38d9c45f2020-07-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/4/7_19-00570/_pdf/-char/enhttps://doaj.org/toc/2187-9745To identify functions and facilities that are critical for ensuring safety in advanced reactors, for which only a limited usage history is available, it is necessary to consider the characteristics of each reactor type by utilizing more risk-related information. In this study, we compare the response capability during an accident for light water reactors and fast reactors to quantitatively evaluate the impact of the reactor type on resilience. A resilience evaluation procedure is developed for assessing the response margin and response reliability of a nuclear power plant during an accident; this procedure was then applied to a simple pressurized-water reactor and a sodium-cooled fast reactor plant model using an accident scenario involving an earthquake that generated a leakage of coolant from the primary heat-transport system. Our research indicated a relatively large difference between the response reliability with respect to time for the two reactor types.Masaaki SUZUKIKazuyuki DEMACHIShigeru TAKAYAYoshitaka CHIKAZAWAThe Japan Society of Mechanical Engineersarticleriskresilienceresponse reliabilitysafety assessmentaccident managementlight water reactorfast reactorMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 4, Pp 19-00570-19-00570 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	risk resilience response reliability safety assessment accident management light water reactor fast reactor Mechanical engineering and machinery TJ1-1570
spellingShingle	risk resilience response reliability safety assessment accident management light water reactor fast reactor Mechanical engineering and machinery TJ1-1570 Masaaki SUZUKI Kazuyuki DEMACHI Shigeru TAKAYA Yoshitaka CHIKAZAWA Comparative evaluation of response reliability during accidents in light water reactors and fast reactors
description	To identify functions and facilities that are critical for ensuring safety in advanced reactors, for which only a limited usage history is available, it is necessary to consider the characteristics of each reactor type by utilizing more risk-related information. In this study, we compare the response capability during an accident for light water reactors and fast reactors to quantitatively evaluate the impact of the reactor type on resilience. A resilience evaluation procedure is developed for assessing the response margin and response reliability of a nuclear power plant during an accident; this procedure was then applied to a simple pressurized-water reactor and a sodium-cooled fast reactor plant model using an accident scenario involving an earthquake that generated a leakage of coolant from the primary heat-transport system. Our research indicated a relatively large difference between the response reliability with respect to time for the two reactor types.
format	article
author	Masaaki SUZUKI Kazuyuki DEMACHI Shigeru TAKAYA Yoshitaka CHIKAZAWA
author_facet	Masaaki SUZUKI Kazuyuki DEMACHI Shigeru TAKAYA Yoshitaka CHIKAZAWA
author_sort	Masaaki SUZUKI
title	Comparative evaluation of response reliability during accidents in light water reactors and fast reactors
title_short	Comparative evaluation of response reliability during accidents in light water reactors and fast reactors
title_full	Comparative evaluation of response reliability during accidents in light water reactors and fast reactors
title_fullStr	Comparative evaluation of response reliability during accidents in light water reactors and fast reactors
title_full_unstemmed	Comparative evaluation of response reliability during accidents in light water reactors and fast reactors
title_sort	comparative evaluation of response reliability during accidents in light water reactors and fast reactors
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/440339ede4664ef0a2cb384a38d9c45f
work_keys_str_mv	AT masaakisuzuki comparativeevaluationofresponsereliabilityduringaccidentsinlightwaterreactorsandfastreactors AT kazuyukidemachi comparativeevaluationofresponsereliabilityduringaccidentsinlightwaterreactorsandfastreactors AT shigerutakaya comparativeevaluationofresponsereliabilityduringaccidentsinlightwaterreactorsandfastreactors AT yoshitakachikazawa comparativeevaluationofresponsereliabilityduringaccidentsinlightwaterreactorsandfastreactors
_version_	1718407581497556992

Comparative evaluation of response reliability during accidents in light water reactors and fast reactors

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