ACCIDENT MANAGEMENT ADVISOR SYSTEM DEVELOPMENT TO HANDLE UNCERTAIN SENSOR INPUTS UNDER NUCLEAR PLANT ACCIDENT CONDITIONS

THIS PHASE I RESEARCH PROJECT IS TO DEVELOP A NUCLEAR POWERPLANT ACCIDENT MANAGEMENT ADVISOR SYSTEM (AMAS). AMAS IS DESIGNED TO ASSIST THE OPERATORS OF A PLANT EXPERIENCING ACCIDENT CONDITIONS. IT WILL HELP THEM IN (1) DIAGNOSING THE PLANT STATE, (2) MANAGING THE EVENT SEQUENCES (3) CONTROLLING THE PHENOMENA THAT MAY ARISE AS A RESULT OF THE ACCIDENT AND AFFECT PLANT SYSTEMS. ALTHOUGH THE KNOWLEDGE BASE NECESSARY FOR THE APPLICATION OF AMAS TO NUCLEAR POWERPLANTS MUST BE DEVELOPED BASED ON THE PHENOMENOLOGY OF NUCLEAR PLANT ACCIDENT SCENARIOS, THE GENERAL CONCEPTUAL FRAMEWORK AND REASONING ALGORITHMS OF AMAS MAY ALSO BE OF INTEREST FOR OTHER TYPES OF PROCESS PLANT APPLICATIONS. GIVEN THE COMPLEX NATURE OF THE ACCIDENT PHENOMENOLOGY AND THE UNCERTAINTY ASSOCIATED WITH INSTRUMENTATION READINGS AVAILABLE UNDER ACCIDENT CONDITIONS, THE AMAS APPROACH FOCUSES SPECIFICALLY ON THE PROBLEMS OF IDENTIFYING PLANT STATES AND THE EFFECTS OF OPERATOR ACTIONS, WHILE UTILIZING THE UNCERTAIN INPUTS FROM PLANT SENSORS AND THE UNCERTAIN KNOWLEDGE OF PLANT SYSTEM RESPONSES TO THE ACCIDENT.