SITRON: Site risk assessment approach developed for Nordic countries

Ola Bäckström; Erik Cederhorn; Xuhong He; Jan-Erik Holmberg; Tero Tyrväinen

SITRON: Site risk assessment approach developed for Nordic countries

Ola Bäckström, Erik Cederhorn, Xuhong He, Jan-Erik Holmberg, Tero Tyrväinen

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Professional

Abstract

Currently, multi-unit risks have not typically been adequately accounted for in risk assessments, since the licensing is based on unit-specific PSA with focus on a reactor accident. Within Sweden and Finland a research project called SITRON on multi-unit risk has been ongoing since 2017. This paper outlines the approach, discussed within SITRON, on multi-unit risk taking into account various dependencies between the units, combination of plant operating states and relevant risk metrics to study. The approach has been developed with aid of two pilot studies made for two Swedish sites. The dependencies between units can be caused by external hazards, which can affect multiple units at the same time, shared operational and safety systems at the site and common staff who should manage the situations. The paper also presents high level results from the two pilot studies.

Original language	English
Title of host publication	PSAM 14 - Probabilistic Safety Assessment and Management
Subtitle of host publication	Papers
Number of pages	10
Publication status	Published - Sept 2018
MoE publication type	D3 Professional conference proceedings
Event	14th Probabilistic Safety Assessment and Management Conference, PSAM 14 - UCLA Luskin Conference Center, Los Angeles, United States Duration: 16 Sept 2018 → 21 Sept 2018 Conference number: 14

Conference

Conference	14th Probabilistic Safety Assessment and Management Conference, PSAM 14
Abbreviated title	PSAM 2018
Country/Territory	United States
City	Los Angeles
Period	16/09/18 → 21/09/18

Keywords

multi-unit
nuclear power plant safety

Access to Document

http://psam14.org/proceedings/paper/paper_179_1.pdf

Cite this

@inproceedings{6350f2390c334f3db951832c1d9b7904,

title = "SITRON: Site risk assessment approach developed for Nordic countries",

abstract = "Currently, multi-unit risks have not typically been adequately accounted for in risk assessments, since the licensing is based on unit-specific PSA with focus on a reactor accident. Within Sweden and Finland a research project called SITRON on multi-unit risk has been ongoing since 2017. This paper outlines the approach, discussed within SITRON, on multi-unit risk taking into account various dependencies between the units, combination of plant operating states and relevant risk metrics to study. The approach has been developed with aid of two pilot studies made for two Swedish sites. The dependencies between units can be caused by external hazards, which can affect multiple units at the same time, shared operational and safety systems at the site and common staff who should manage the situations. The paper also presents high level results from the two pilot studies.",

keywords = "multi-unit, nuclear power plant safety",

author = "Ola B{\"a}ckstr{\"o}m and Erik Cederhorn and Xuhong He and Jan-Erik Holmberg and Tero Tyrv{\"a}inen",

note = "abstract reviewed; 14th Probabilistic Safety Assessment and Management Conference, PSAM 14, PSAM 2018 ; Conference date: 16-09-2018 Through 21-09-2018",

year = "2018",

month = sep,

language = "English",

booktitle = "PSAM 14 - Probabilistic Safety Assessment and Management",

}

Bäckström, O, Cederhorn, E, He, X, Holmberg, J-E & Tyrväinen, T 2018, SITRON: Site risk assessment approach developed for Nordic countries. in PSAM 14 - Probabilistic Safety Assessment and Management: Papers., 179, 14th Probabilistic Safety Assessment and Management Conference, PSAM 14, Los Angeles, California, United States, 16/09/18. <http://psam14.org/proceedings/paper/paper_179_1.pdf>

TY - GEN

T1 - SITRON

T2 - 14th Probabilistic Safety Assessment and Management Conference, PSAM 14

AU - Bäckström, Ola

AU - Cederhorn, Erik

AU - He, Xuhong

AU - Holmberg, Jan-Erik

AU - Tyrväinen, Tero

N1 - Conference code: 14

PY - 2018/9

Y1 - 2018/9

N2 - Currently, multi-unit risks have not typically been adequately accounted for in risk assessments, since the licensing is based on unit-specific PSA with focus on a reactor accident. Within Sweden and Finland a research project called SITRON on multi-unit risk has been ongoing since 2017. This paper outlines the approach, discussed within SITRON, on multi-unit risk taking into account various dependencies between the units, combination of plant operating states and relevant risk metrics to study. The approach has been developed with aid of two pilot studies made for two Swedish sites. The dependencies between units can be caused by external hazards, which can affect multiple units at the same time, shared operational and safety systems at the site and common staff who should manage the situations. The paper also presents high level results from the two pilot studies.

AB - Currently, multi-unit risks have not typically been adequately accounted for in risk assessments, since the licensing is based on unit-specific PSA with focus on a reactor accident. Within Sweden and Finland a research project called SITRON on multi-unit risk has been ongoing since 2017. This paper outlines the approach, discussed within SITRON, on multi-unit risk taking into account various dependencies between the units, combination of plant operating states and relevant risk metrics to study. The approach has been developed with aid of two pilot studies made for two Swedish sites. The dependencies between units can be caused by external hazards, which can affect multiple units at the same time, shared operational and safety systems at the site and common staff who should manage the situations. The paper also presents high level results from the two pilot studies.

KW - multi-unit

KW - nuclear power plant safety

M3 - Conference article in proceedings

BT - PSAM 14 - Probabilistic Safety Assessment and Management

Y2 - 16 September 2018 through 21 September 2018

ER -

SITRON: Site risk assessment approach developed for Nordic countries

Abstract

Conference

Keywords

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