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Systems Engineering Method to Develop Multiple BMI Nozzle Inspection System for APR1400
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 Title & Authors
Systems Engineering Method to Develop Multiple BMI Nozzle Inspection System for APR1400
Abdallah, Khaled Atya Ahmed; Nam, GungIhn;
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The Systems Engineering (SE) approach is characterized by the application of a structured engineering methodology for the design of a complex system or component. In this study, the SE methodology is used to design a nondestructive inspection system for Bottom Mounted Instrumentation (BMI) nozzles. We developed a system that enables nondestructive inspection of BMI nozzles during regular refueling outage without removing the reactor internals. A special ultrasonic (UT) probe is introduced to scan and detect cracks within the weld region of the nozzle. A 3D model of the inspection structure system was developed along with the reactor pressure vessel (RPV) and internals which permits a virtual 3D simulation of the operation to check the design concept and effectiveness of the system and to provide a good visualization of the system. This approach allows for a virtual walk through to verify the proposed BMI nozzle inspection system.
Systems engineering;BMI;BMI weld inspection, RV internals;Inspection;Nondestructive Test;
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