Reactor Theory (Reactor Operations)DOE-HDBK-1019/2-93OBJECTIVESTERMINAL OBJECTIVE3.0Without references, EXPLAIN the concepts concerning reactor startup, operation, andshutdown.ENABLING OBJECTIVES3.1EXPLAINwhy a startup neutron source may be required for a reactor.3.2LISTfour variables typically involved in a reactivity balance.3.3EXPLAINhow a reactivity balance may be used to predict the conditions under whichthe reactor will become critical.3.4LISTthree methods used to shape or flatten the core power distribution.3.5DESCRIBEthe concept of power tilt.3.6DEFINEthe term shutdown margin.3.7EXPLAINthe rationale behind the one stuck rod criterion.3.8IDENTIFYfive changes that will occur during and after a reactor shutdown that willaffect the reactivity of the core.3.9EXPLAINwhy decay heat is present following reactor operation.3.10LISTthree variables that will affect the amount of decay heat present following reactorshutdown.3.11ESTIMATEthe approximate amount of decay heat that will exist one hour after ashutdown from steady state conditions.Rev. 0NP-04Page vii
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