RELAP5 assessment of noncondensable test data for passive cooling applications

Conference · Thu Oct 01 04:00:00 EDT 1992

OSTI ID:10190134

Kullberg, C

Condensation heat transfer in the presence of noncondensable (NC) gases is of concern in the design of passive heat removal systems for a number of recently proposed advanced reactor designs. In general, the presence of NCs will degrade the efficiency of such passive heat removal systems and, in some cases, induce unstable flow patterns. As part of a research effort to better understand passive heat removal dynamics, a series of numerical steady-state simulations in the presence of NCs were performed to evalutate RELAP5/MOD3 against test data. This assessment was made using data from the University of California, Berkeley (UCB) natural circulation loop test facility. For fine enough nodalization in the condenser region, the RELAP5/MOD3 simulations generally captured the same phenomena as observed in the tests.

• Research Organization: EG and G Idaho, Inc., Idaho Falls, ID (United States)
• Sponsoring Organization: Nuclear Regulatory Commission, Washington, DC (United States)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 10190134
• Report Number(s): EGG-M--92391; CONF-921102--23; ON: DE93001967
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900
99 GENERAL AND MISCELLANEOUS
990200
BWR TYPE REACTORS
COMPUTERIZED SIMULATION
CONDENSATES
HEAT TRANSFER
HYDRAULICS
LOSS OF COOLANT
MATHEMATICS AND COMPUTERS
POWER REACTORS
NONBREEDING
LIGHT-WATER MODERATED
BOILING WATER COOLED
R CODES
REACTOR COOLING SYSTEMS
REACTOR SAFETY