Published September 1992 | Version v1
Journal article Metadata-only

Optimization of dynamic terms in core overtemperature delta-T trip function

Creators

  • 1. Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

Description

The characteristics of dynamic terms in the core overtemperature delta-T trip function are investigated for various time constants and the effects on the trip setpoint are studied for the uncontrolled RCCA bank withdrawal at power event by using the NLOOP and the PUMA code. Based on this study, a procedure determining the optimal dynamic term is suggested and accordingly the optimum time constants are determined for the KORI 3 and 4 transition core. It reveals that the vessel average temperature lead-lag term is the most sensitive in DNB trip setpoint and the optimized time constants are 21 seconds for for lead and 4 seconds for lag. (Author)

Additional details

Publishing Information

Journal Title
Journal of the Korean Nuclear Society
Journal Volume
24
Journal Issue
3
Journal Page Range
p. 236-242.
ISSN
0372-7327
CODEN
WJHKAW

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
Korea, Republic of
INIS RN
24036005
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS; S99: GENERAL AND MISCELLANEOUS;
Descriptors DEI
COMPUTER CODES; HYDRAULICS; LAPLACE TRANSFORMATION; OPTIMIZATION; PWR TYPE REACTORS; REACTOR CORES; TEMPERATURE CONTROL; TEMPERATURE DEPENDENCE; THERMODYNAMICS
Descriptors DEC
CONTROL; ENRICHED URANIUM REACTORS; INTEGRAL TRANSFORMATIONS; POWER REACTORS; REACTOR COMPONENTS; REACTORS; THERMAL REACTORS; TRANSFORMATIONS; WATER COOLED REACTORS; WATER MODERATED REACTORS