Published 2015 | Version v1
Journal article Metadata-only

Study of bounding cases for primary to secondary leakage for VVER-1000/V320

Creators

  • 1. Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences, Sofia (Bulgaria)

Description

This paper presents the results of bounding cases for "Steam Generator Tube Rupture" (SGTR) for VVER‑1000/V320 units at Kozloduy Nuclear Power Plant (KNPP), done during the development of Symptom Based Emergency Operating Procedures (SB EOPs) for this plant. The purpose of the analyses is to demonstrate successful cooldown of reactor coolant system (RCS) by natural circulation with only one steam generator (SG) using the letdown system and cooldown by natural circulation utilizing a damaged SG. The calculation demonstrates an effective strategy for preventing any secondary radiological release to the environment. The results of the thermal-hydraulic analyses have been used to assist KNPP specialists in analytical validation of EOPs. Key words: nuclear power plant safety, thermal hydraulics, VVER type reactor, horizontal steam generator, steam generator tube rupture

Additional details

Publishing Information

Journal Title
Comptes Rendus de l'Academie Bulgare des Sciences
Journal Volume
68
Journal Issue
11
Journal Page Range
p. 1365-1372
ISSN
1310-1331

INIS

Country of Publication
Bulgaria
Country of Input or Organization
Bulgaria
INIS RN
47073142
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
ACCIDENT MANAGEMENT; DAMAGE; HYPOTHETICAL ACCIDENTS; LEAKS; NATURAL CONVECTION; NUCLEAR POWER PLANTS; REACTOR COOLING SYSTEMS; REACTOR SAFETY; RUPTURES; STEAM GENERATORS; THERMAL HYDRAULICS; TUBES; VALIDATION; WWER TYPE REACTORS
Descriptors DEC
ACCIDENTS; BOILERS; CONVECTION; COOLING SYSTEMS; ENERGY SYSTEMS; ENERGY TRANSFER; ENRICHED URANIUM REACTORS; FAILURES; FLUID MECHANICS; HEAT TRANSFER; HYDRAULICS; MANAGEMENT; MASS TRANSFER; MECHANICS; NUCLEAR FACILITIES; POWER PLANTS; POWER REACTORS; PWR TYPE REACTORS; REACTOR COMPONENTS; REACTORS; SAFETY; TESTING; THERMAL POWER PLANTS; THERMAL REACTORS; VAPOR GENERATORS; WATER COOLED REACTORS; WATER MODERATED REACTORS