Published August 1999 | Version v1
Report Metadata-only

Safety analysis of main coolant pump failure after I and C system upgrading. Rev. 1

Creators

Description

The situation in the event of failure of 3 from the 6 main coolant pumps which are active during Dukovany reactor unit operation at the full power level is analyzed with a view to identifying the effect of instrumentation and control (I and C) system upgrading by comparison with the same analysis performed in 1998. The conservatism of the analysis is aimed at the departure from nucleate boiling ratio. The I and C system upgrading was found to be beneficial because the DNBR criterion is met now even if the power limiter does not work and the hot channel factor is 1.83

Availability note (English)

Available from Nuclear Research Institute Rez, 250 68 Rez, Czech Republic; e-mail contact: ret@nri.cz

Additional details

Additional titles

Original title (Czech)
Bezpecnostni analyza vypadku HCC po obnove SKR. Revize 1
Augmented title (English)
Dukovany NPP

Publishing Information

Imprint Pagination
[32 p.]
Report number
UJV--11256-T

INIS

Country of Publication
Czech Republic
Country of Input or Organization
Czech Republic
INIS RN
31065762
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
COMPUTER CALCULATIONS; COOLANTS; D CODES; DEPARTURE NUCLEATE BOILING; DESIGN BASIS ACCIDENTS; DUKOVANY-1 REACTOR; FAILURES; PRIMARY COOLANT CIRCUITS; PUMPS; REACTOR CONTROL SYSTEMS; SAFETY ANALYSIS
Descriptors DEC
ACCIDENTS; BOILING; COMPUTER CODES; CONTROL SYSTEMS; COOLING SYSTEMS; ENERGY SYSTEMS; ENRICHED URANIUM REACTORS; EQUIPMENT; NUCLEATE BOILING; PHASE TRANSFORMATIONS; POWER REACTORS; PWR TYPE REACTORS; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; WWER TYPE REACTORS

Optional Information

Notes
3 tabs., 21 figs., 19 refs.