Award Data

CURRENT ACTIVITY WITHIN THE NRC AND THE NUCLEAR INDUSTRY SEEKS TO EXPLOIT THE BENEFITS OF PRA IN RISK-BASED APPROACHES TO RELIEVE REGULATORY BURDEN ON THE ECONOMICALLY THREATENED NUCLEAR POWER PLANTS. THE ACCIDENT PREVENTION GROUP HAS BEEN DEVELOPING THE CONCEPT OF AN INTEGRATED RISK MANAGEMENT PROGRAM (IRMP) TOWARD SUCH GOALS. A KEY ELEMENT OF AN IRMP IS AN "OPERATIONAL RISK MODEL" OF THE NPP THA ...

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THIS PROPOSAL IS TO ADDRESS THE FEASIBILITY OF WATER-REACTIVE GROUTS AS A "SMART" MATERIAL CAPABLE OF BEING PLACED DURING CONSTRUCTION BUT NOT ACTIVATED UNTIL A THREAT EVENT OCCURS WHICH DEGRADES THE ORIGINAL WATERTIGHT INTEGRITY. WHEN SUCH DEGRADATION OCCURS, IT WILL EXPOSE THE WATER-REACTIVE GROUT TO GROUNDWATER. THIS WILL TRIGGER THE HARDENING PROCESS WHICH WILL AUTOMATICALLY AFFECT A EAL AT TH ...

THIS WORK IS TO DEVELOP A METHOD TO IMPROVE THE ABILITY OF THE USNRC TO EVALUATE THE OPERATIONAL SAFETY SIGNIFICANCE OF OCCURANCES AT NUCLEAR POWER PLANTS. PERHAPS THE AREA OF GREATEST SAFETY SIGNIFICANCE IS HUMAN PERFORMANCE, BUT THE TECHNIQUES USED BY NRC DO NOT EVALUATE HUMAN PERFORMANCE IN ANY SYSTEMIC WAY. THE WORK IS PROPOSED TO BE PERFORMED IN THREE STAGES, AND BUILDS ON METHODS THAT HAVE B ...

A SIMPLIFIED RECONNAISSANCE-TYPE TEST IS PROPOSED THAT UTILIZES THE TECHNIQUES OF TRACER GAS VENTILATION TESTING TO QUANTIFY THE UNFILTERED AIR INLEAKAGE INTO AN OPERATING NUCLEAR POWER PLANT CONTROL ROOM. THE TEST WILL BE DEVELOPED TO ENCOMPASS THE FIVE BASIC TYPES OF CONTROL ROOM EMERGENCY VENTILATION SYSTEMS. A THOROUGH ERROR ANALYSIS WILL ALSO BE UNDERTAKEN. A DETAILED TESTING PROTOCOL SUITABL ...

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