Radiative heat transfer in molten UO/sub 2/ based on the Rosseland diffusion method. [LMFBR]
Journal Article
·
· Nucl. Technol.; (United States)
OSTI ID:7246743
Radiant heat transfer in a horizontal molten UO/sub 2/ pool that is about to boil has been analyzed using the Rosseland diffusion approximation and radiative slip boundary conditions. When superimposed on the free convection heat transfer, internal thermal radiation increases the heat loss through both the upper and lower pool surfaces. This increase is significant at the lower Rayleigh numbers where the radiant transfer dominates the free convection. At the higher Rayleigh numbers, radiant heat loss is small compared to the convective heat loss. Internal thermal radiation also tends to equalize the heat removed through the upper and lower boundaries, and to increase the pool depth required for fuel boiling. Since the internal radiative transfer has been shown to alter the heat loss from the pool, and therefore melt-through and cooldown rates as well as boiling, it should be incorporated into postaccident heat removal analysis.
- Research Organization:
- Argonne National Lab., IL
- OSTI ID:
- 7246743
- Journal Information:
- Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 30:1; ISSN NUTYB
- Country of Publication:
- United States
- Language:
- English
Similar Records
Combined natural convection and radiation in a volumetrically heated fluid layer
Combined natural convection and radiation in a volumetrically heated fluid layer
Heat transfer from internally-heated molten UO/sub 2/ pools. [PWR; BWR]
Journal Article
·
Thu Jan 31 23:00:00 EST 1980
· J. Heat Transfer; (United States)
·
OSTI ID:5232396
Combined natural convection and radiation in a volumetrically heated fluid layer
Journal Article
·
Thu Jan 31 23:00:00 EST 1980
· J. Heat Transfer; (United States)
·
OSTI ID:5160589
Heat transfer from internally-heated molten UO/sub 2/ pools. [PWR; BWR]
Conference
·
Tue Oct 10 00:00:00 EDT 1978
·
OSTI ID:6517679
Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500 -- Power Reactors
Breeding
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
ACCIDENTS
ACTINIDE COMPOUNDS
BOILING
BREEDER REACTORS
CHALCOGENIDES
ENERGY TRANSFER
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
HEAT TRANSFER
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MELTDOWN
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
POOL BOILING
RADIANT HEAT TRANSFER
REACTOR ACCIDENTS
REACTORS
ROSSELAND APPROXIMATION
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES
210500 -- Power Reactors
Breeding
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
ACCIDENTS
ACTINIDE COMPOUNDS
BOILING
BREEDER REACTORS
CHALCOGENIDES
ENERGY TRANSFER
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
HEAT TRANSFER
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MELTDOWN
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
POOL BOILING
RADIANT HEAT TRANSFER
REACTOR ACCIDENTS
REACTORS
ROSSELAND APPROXIMATION
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES