Reactor core model update system

摘要: The present invention is a system that updates pressurized water reactor core model, or data file describing the core, periodically using measured values determinable from instrumentation. starts with calibrated model flux map and boron concentration measurement both determined monthly. Reactor measurements are performed updated standard depletion calculation. Some of also used to determine actual axial offset pinch. Standard neutronics equations calculate analytical pinch calculated compared. If deviation beyond certain magnitude detected, buckling coefficients in adjusted compensate for drift. stored time-out period entered until it time another drift compensation cycle start. adjustment overcompensates difference between slightly less than but an opposite sign. can be accurate initial predictor display operator.