Molten fuel motion during a fast-reactor overpower transient

Conference · Thu Jan 01 04:00:00 EST 1976

OSTI ID:7325306

Kolesar, D. C.; Padilla, A. Jr.; Lewis, C. H.; Waltar, A. E.

Mechanistic models for postfailure fuel behavior during hypothetical transient overpower accidents are currently being developed for incorporation into the MELT accident analysis code. A new model for the fuel-coolant interaction and for the motion of fuel in the coolant channel has been developed and incorporated into the MELT-III code. A major limitation of the mechanistic fuel motion model is its dependence on the uniform interaction region of MELT-III. Consequently, a parallel effort is currently in progress to incorporate a non-uniform interaction region into the MELT code. Combination of the fuel motion and the nonuniform interaction region models will provide the framework for development of a mechanistic fuel plateout/blockage model for transient overpower accidents.

• Research Organization: Hanford Engineering Development Lab., Richland, Wash. (USA)
• DOE Contract Number: E(45-1)-2170
• OSTI ID: 7325306
• Report Number(s): HEDL-SA-841; CONF-761001-35
• Country of Publication: United States
• Language: English

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FUEL PINS
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REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SODIUM COOLED REACTORS
TEST REACTORS