REFLUX; LWR reflood heat transfer prediction. [IBM360; FORTRAN IV]

Technical Report ·

OSTI ID:6490246

Kirchner, W L

REFLUX calculates the temperature-time history of a representative fuel rod during the reflood stage of a hypothetical loss-of-coolant accident (LOCA). The logic used for selection of the appropriate flow regime for analysis of the cladding temperature transient is based on the axial position with regard to the continuous liquid level (based on a mass balance), a liquid carry-over criterion (derived from a force balance on a drop suspended in a vapor stream), and the local cladding surface temperature. A generalized boiling curve is constructed, and the local flow and clad conditions determine the applicable heat transfer coefficient.IBM360; FORTRAN IV; OS/360; Tape unit, line printer, and 100K bytes of memory.

• Research Organization: Los Alamos National Lab., NM (USA)
• OSTI ID: 6490246
• Report Number(s): ANL/NESC-763; ON: DE83048763
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
ACCIDENTS
BWR TYPE REACTORS
CLADDING
COMPUTER CODES
COMPUTERS
COOLANTS
CORE FLOODING SYSTEMS
DEPOSITION
ECCS
ENERGY TRANSFER
ENGINEERED SAFETY SYSTEMS
FORTRAN
FUEL ELEMENTS
FUEL RODS
HEAT TRANSFER
IBM COMPUTERS
LOSS OF COOLANT
PROGRAMMING LANGUAGES
PWR TYPE REACTORS
R CODES
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR PROTECTION SYSTEMS
REACTORS
SURFACE COATING
WATER COOLED REACTORS
WATER MODERATED REACTORS