Expert systems for the analysis of transients on nuclear reactors: SEXTANT, a general-purpose physical analyzer

Journal Article · Thu Dec 01 00:00:00 EST 1988 · Nucl. Sci. Eng.; (United States)

OSTI ID:6306572

Barbet, N; Dumas, M; Mihelich, G; Souchet, Y; Thomas, J B

Two expert systems for on-line analysis of nuclear reactor transients are reported. During a hypothetical crisis in a nuclear facility, a team of the Institute for Protection and Nuclear Safety must assess the risk to the local population. Expert systems are intended to assist in this analysis. The first deals with the availability of the safety systems of the plant (e.g., emergency core cooling system), depending on the functional state of the support systems. A second expert system will be built to study the physical transient of the reactor (mass and energy balance, pressure, flows). To do this, as in the development of the other expert systems, a physical analyzer is required. This is the aim of SEXTANT, which combines several knowledge bases concerning measurements, models, and qualitative behavior of the plant with a conjecture-refutation mechanism and a set of simplified models of the current physical state. A prototype is being assessed with integral test facility transients.

• Research Organization: Centre d'Etudes Nucleaires de Saclay, Service d'Etudes des Reacteurs et de Mathematiques Appliquees, Dept. des Etudes Mecaniques et Thermiques, 91191 Gif-sur-Yvette Cedex (FR)
• OSTI ID: 6306572
• Journal Information: Nucl. Sci. Eng.; (United States), Vol. 100:4
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
EXPERT SYSTEMS
AVAILABILITY
NUCLEAR FACILITIES
POWER REACTORS
RISK ASSESSMENT
REACTOR SAFETY
TEST FACILITIES
ENERGY BALANCE
KNOWLEDGE BASE
ON-LINE MEASUREMENT SYSTEMS
RADIATION PROTECTION
REACTOR MONITORING SYSTEMS
TRANSIENTS
ON-LINE SYSTEMS
REACTORS
SAFETY
220400* - Nuclear Reactor Technology- Control Systems
220900 - Nuclear Reactor Technology- Reactor Safety