Application of OECD THAI HM Test Results to Simulation of Hydrogen Stratification in VVER-1000 Containment with MELCOR Code
Result description
Validation of the MELCOR code concerning this topic was done against the OECD THAI HM-2 test. Successful simulation of the test followed with an application to a plant simulation. Very detailed input model for the VVER-1000/320 type of containment was prepared based on experience from application to the THAI HM-2 test. Analysis of the containment response with realistic sources from the small break LOCA did not predicted hydrogen stratification in reactor dome for that source from small break LOCA. Forthe confirmation of correctness of the input model for the VVER containment the second analysis was performed, but sources from the LOCA break were replaced with hydrogen sources from the THAI HM-2 experiment multiplied by scale up factor. Such analysispredicted stratification of atmosphere with a formation of hydrogen cloud in the top of containment.
Keywords
containment thermal hydraulicshydrogen stratificationsevere accidentscomputer codes
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Application of OECD THAI HM Test Results to Simulation of Hydrogen Stratification in VVER-1000 Containment with MELCOR Code
Original language description
Validation of the MELCOR code concerning this topic was done against the OECD THAI HM-2 test. Successful simulation of the test followed with an application to a plant simulation. Very detailed input model for the VVER-1000/320 type of containment was prepared based on experience from application to the THAI HM-2 test. Analysis of the containment response with realistic sources from the small break LOCA did not predicted hydrogen stratification in reactor dome for that source from small break LOCA. Forthe confirmation of correctness of the input model for the VVER containment the second analysis was performed, but sources from the LOCA break were replaced with hydrogen sources from the THAI HM-2 experiment multiplied by scale up factor. Such analysispredicted stratification of atmosphere with a formation of hydrogen cloud in the top of containment.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
JF - Nuclear energy
OECD FORD branch
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Result continuities
Project
LA326: Arrangement of the participation in the OECD-NEA THAI project
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Basic information
Result type
O - Miscellaneous
CEP
JF - Nuclear energy
Year of implementation
2010