19 transients selected for this SFR safety demonstration (SA: Severe Accident).
|Family||Description||Situation category||Scientific calculation tool|
|Loss of function supporting||General slowdown of the primary pumps||OS2||CATHARE2|
|General acceleration of the primary pumps||OS2||CATHARE2|
|Seizure or shaft failure of one primary pump||OS3||MATHYS|
|Connection failure between a primary pump and diagrid||OS4||MATHYS|
|Unprotected general slowdown of the primary pumps||PS||MATHYS|
|Defect of sub-assembly cooling||Partial blockage of a fissile sub-assembly||OS3||MATHYS|
|Partial blockage of an absorbent sub-assembly||OS3||MATHYS|
|Progressive melting of a sub-assembly owing to a blockage||PS||SIMMER (SA)|
|Defect of primary circuit cooling||One or several secondary pump trips||OS2||CATHARE2|
|Unintentional draining of secondary loops||OS3||CATHARE2|
|Unintentional closure of isolation valve on secondary loops||OS4||CATHARE2|
|Defect of secondary and tertiary circuits cooling||Station BlackOut shorter than 2 h||OS2||CATHARE2|
|Station BlackOut longer than 2 h||OS3||CATHARE2|
|Generalized under-voltage shorter than 3 days||OS4||MATHYS|
|Unprotected Station BlackOut shorter than 2 h||OS4||MATHYS|
|Reactivity variation||Unintentional rising of a control rod||OS2||Multiphysic Tool|
|Unintentional drop of a control rod||OS2||Multiphysic Tool|
|Unintentional automatic reactor shut-down||OS2||MATHYS|
|Unintentional fast reactor shut-down||OS2||MATHYS|
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