Anticipated transients without scram

Journal Article · Tue Jul 01 00:00:00 EDT 1980 · Nucl. Saf.; (United States)

OSTI ID:7013957

Lellouche, G S

This article discusses in various degrees of depth the publications WASH-1270, WASH-1400, and NUREG-0460, and has as its purpose a description of the technical work done by Electric Power Research Institute (EPRI) personnel and its contractors on the subject of anticipated transients without scram (ATWS). It demonstrates the close relation between the probability of scram failure derived from historical scram data and that derived from the use of component data in a model of a system (the so-called synthesis method), such as was done in WASH-1400. The inherent conservatism of these models is demonstrated by showing that they predict significantly more events than have in fact occurred and that such models still predict scram failure probabilities low enough to make ATWS an insignificant contributor to accident risk.

• OSTI ID: 7013957
• Journal Information: Nucl. Saf.; (United States), Journal Name: Nucl. Saf.; (United States) Vol. 21:4; ISSN NUSAA
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
ATWS
BWR TYPE REACTORS
EPRI
FAILURES
PWR TYPE REACTORS
REACTOR ACCIDENTS
REACTOR SHUTDOWN
REACTORS
SCRAM
SHUTDOWNS
WATER COOLED REACTORS
WATER MODERATED REACTORS