Published 2003 | Version v1
Miscellaneous Metadata-only

Some specifics of the risk analyses for Pebble Bed Modular Reactor

Creators

  • 1. PRA Group, Pebble Bed Modular Reactor, PBMR (Pty.) Ltd., P.O. Box 9396, 0046 Centurion (South Africa)

Description

The paper presents the main results of the comparison between the Probabilistic Risk analyses (PRA), as performed for Light Water Reactors (LWR) and the PRA undergoing for gas reactors of Pebble Bed Module Reactor (PBMR) type. The main features of PRA as the most used risk analysis tool were investigated in order to define the specifics of their use for PBMR and a more detailed list of the impact these specific and generic features have on the PRA process are presented. The paper underlines the fact that the usual approach of 3 levels for LWR PRA is not applicable to the PBMR PRA due to the design specifics of the PBMR. The emphasis on passive features and systems to designated to assure the necessary safety margins and the defined risk levels are impacting on the PRA philosophy for PBMR. The concepts of consequences are used in PBMR PRA instead the Core Damage frequency (CDF) or Large Early Release Frequency (LERF). Paper presents also the specifics of each PRA phase and task for PBMR, as they were used during various PRA phases for PBMR

Availability note (English)

Available from author(s) or Romanian Nuclear Energy Association, AREN, Str. Atomistilor 111, PO Box 53, RO-76900 Bucharest - Magurele (RO) or University Politehnica of Bucharest, Splaiul Independentei 313, Sector 6, RO-77206 Bucharest (RO)
Part of:
Programme of the International Symposium on Nuclear Energy SIEN 2003, Nuclear Power - A New Challenge

Additional details

Identifiers

URL
https://www.nuclearelectrica.ro/;

Publishing Information

Publisher
Romanian Nuclear Energy Association, AREN
Imprint Place
Bucharest (Romania)
Imprint Title
Programme of the International Symposium on Nuclear Energy SIEN 2003, Nuclear Power - A New Challenge
Imprint Pagination
606 p.
Journal Page Range
p. 385-394

Conference

Title
SIEN 2003, International Symposium on Nuclear Energy, Nuclear Power - A New Challenge
Dates
22-25 Oct 2003
Place
Bucuresti (Romania)

INIS

Country of Publication
Romania
Country of Input or Organization
Romania
INIS RN
35052653
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
BRAYTON CYCLE; FISSION PRODUCT RELEASE; NUCLEAR FUELS; PEBBLE BED REACTORS; PROBABILISTIC ESTIMATION; REACTOR CORE DISRUPTION; REACTOR LICENSING; RISK ASSESSMENT; SAFETY ANALYSIS; TEMPERATURE DEPENDENCE; WATER COOLED REACTORS
Descriptors DEC
ACCIDENTS; CALCULATION METHODS; ENERGY SOURCES; FUELS; GAS COOLED REACTORS; HOMOGENEOUS REACTORS; LICENSING; MATERIALS; REACTOR ACCIDENTS; REACTOR MATERIALS; REACTORS; SOLID HOMOGENEOUS REACTORS; THERMODYNAMIC CYCLES

Optional Information

Notes
3 refs., 5 figs., 1 tab.