Published June 2013 | Version v1
Journal article Metadata-only

Research on reflood model of narrow channel based on RELAP5

Creators

  • 1. Science and Technology on Reactor System Design Technology, Nuclear Power Institute of China, Chengdu (China)

Description

This paper evaluates the applicability of RELAP5 reflood models for the narrow channel based on the Saxena experiment. The calculated results show that RELAP5 overestimates the quench front velocity and underestimates the wall temperature. Combined the post-DNB thermal-hydraulic characteristics in the narrow channel, the interphase drag, single vapor, film boiling and critical heat flux model were modified. The calculated results based on the new reflood model agree better with the Saxena experiment. (authors)

Additional details

Publishing Information

Journal Title
Nuclear Power Engineering
Journal Volume
34
Journal Issue
3
Journal Page Range
p. 50-57
ISSN
0258-0926

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
47112277
Subject category
S42: ENGINEERING; S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
COMPUTER CALCULATIONS; CORE FLOODING SYSTEMS; CRITICAL HEAT FLUX; DEPARTURE NUCLEATE BOILING; DRAG; FILM BOILING; MATHEMATICAL MODELS; QUENCHING; R CODES; SAFETY INJECTION; THERMAL HYDRAULICS; VELOCITY; WALLS
Descriptors DEC
BOILING; COMPUTER CODES; ECCS; ENGINEERED SAFETY SYSTEMS; FLUID MECHANICS; HEAT FLUX; HYDRAULICS; MECHANICS; NUCLEATE BOILING; PHASE TRANSFORMATIONS; REACTOR PROTECTION SYSTEMS

Optional Information

Notes
5 figs., 2 tabs., 19 refs.