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http://dx.doi.org/10.14248/JKOSSE.2016.12.1.025

Systems Engineering Method to Develop Multiple BMI Nozzle Inspection System for APR1400  

Abdallah, Khaled Atya Ahmed (KEPCO International Nuclear Graduate School)
Nam, GungIhn (KEPCO International Nuclear Graduate School)
Publication Information
Journal of the Korean Society of Systems Engineering / v.12, no.1, 2016 , pp. 25-40 More about this Journal
Abstract
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.
Keywords
Systems engineering; BMI; BMI weld inspection, RV internals; Inspection; Nondestructive Test;
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