On the dynamics of fuel vapor pressure buildup in voided liquid-metal fast breeder reactor cores during transient heating

Journal Article · Sat Nov 01 00:00:00 EST 1986 · Nucl. Technol.; (United States)

OSTI ID:5036171

Rao, P B; Singh, O P

An extension of previous work, the study examines the implications of the approximation that the fuel vapor and liquid temperatures remain equal during the transient. Modified mathematical formulations for calculating the transient fuel vapor temperatures separately are provided as well as the results of calculations of the dynamics of fuel vapor pressure buildup during transient heating in voided liquid-metal fast breeder reactor cooling channels by dispensing with the above approximation. The results with and without the approximation are compared with each other. The study indicates that, although the fuel vapor temperatures lag the liquid-fuel temperatures, the fuel vapor pressure buildup is relatively less sensitive to this lag. The use of the above approximation results in an overprediction of the transient vapor pressure by <10%.

• Research Organization: Indira Gandhi Centre for Atomic Research, Reactor Physics Div., Safety and Noise Analysis Section, Kalpakkam 603 102, Tamil Nadu
• OSTI ID: 5036171
• Journal Information: Nucl. Technol.; (United States), Vol. 75:2
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
LMFBR TYPE REACTORS
REACTOR CORES
TRANSIENTS
HEATING
PRESSURIZING
CALCULATION METHODS
MATHEMATICAL MODELS
NUCLEAR FUELS
REACTOR COOLING SYSTEMS
TEMPERATURE EFFECTS
VAPORS
BREEDER REACTORS
COOLING SYSTEMS
ENERGY SOURCES
ENERGY SYSTEMS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
FLUIDS
FUELS
GASES
LIQUID METAL COOLED REACTORS
MATERIALS
REACTOR COMPONENTS
REACTOR MATERIALS
REACTORS
220900* - Nuclear Reactor Technology- Reactor Safety
210500 - Power Reactors
Breeding