Analysis of damage to RBMK core components as a result of an unanticipated accident

The results of a computational analysis of the damage to RBMK core components occurring during unanticipated accidents are presented. The deformation and scale of damage to fuel elements, non-bearing fuel-assembly rods, and channel pipes are examined for three accidents. The calculations show that a...

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Bibliographic Details
Published in:Atomic energy (New York, N.Y.) N.Y.), 2008-04, Vol.104 (4), p.278-284
Main Authors: Tkachev, V. V., Mikhailov, D. A., Zheltukhin, K. K.
Format: Article
Language:English
Subjects:
Collectors
Cooling
Hadrons
Heat
Heavy Ions
High temperature
Nuclear accidents & safety
Nuclear Chemistry
Nuclear Energy
Nuclear engineering
Nuclear Physics
Physics
Physics and Astronomy
Studies
Temperature
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Summary:The results of a computational analysis of the damage to RBMK core components occurring during unanticipated accidents are presented. The deformation and scale of damage to fuel elements, non-bearing fuel-assembly rods, and channel pipes are examined for three accidents. The calculations show that all fuel elements become unsealed in the accidents examined. Substantial deformation of cladding, resulting in blocking of the flow section of a RBMK fuel channel, does not occur. The central carrying rod (tube) is likely to break with standard and central clamping of fuel element bundles in an assembly. Rupture of fuel channels is unavoidable in all unanticipated accidents studied.
ISSN:1063-4258
1573-8205
DOI:10.1007/s10512-008-9029-6