한국압력기기공학회 논문집 (Transactions of the Korean Society of Pressure Vessels and Piping)

한국압력기기공학회 (Korean Society of Pressure Vessels and Piping)
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PGSFR 가동중검사기술 개발

Development of In-Service Inspection Techniques for PGSFR

  • 투고 : 2016.05.31
  • 심사 : 2016.06.24
  • 발행 : 2016.06.30
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초록

Since the sodium-cooled fast reactor is operated in a hostile environment due to the use of liquid sodium as its coolant, advanced techniques for in-service inspection are required to periodically verify the integrity of the reactor. This paper presents the development of in-service inspection techniques for Proto-type Generation IV Sodium-cooled Fast Reactor. First, the 10 m long plate-type ultrasonic waveguide sensor has been developed for in-service inspection of reactor internals, and its feasibility was verified through several under-water and under-sodium experiments. Second, the combined inspection system for in-service inspection of ferromagnetic steam generator tubes has been developed. The remote field eddy current testing and magnetic flux leakage testing can be conducted simultaneously by using the developed inspection system, and the detectability was demonstrated through several damage detection experiments. Finally, the electro-magnetic acoustic transducer which can withstand high temperature and be installable in the remote operated vehicle has been developed for in-service inspection of the reactor vessel, and its detectability was investigated through damage detection experiments.

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참고문헌

  1. ASME, 1992, ASME Boiler and Pressure Vessel Code, Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components, The American Society of Mechanical Engineers, New York.
  2. Karasawa, H., Izumi, M., Suzuki, T., Nagai, S., Tamura, M. and Fujimori, S., 2000, "Development of under-sodium Three-dimensional Visual Inspection Technique Using Matrix-arrayed Ultrasonic Transducer," Journal of Nuclear Science and Technology, Vol. 37, No. 9, pp. 769-779. https://doi.org/10.1080/18811248.2000.9714955
  3. Swaminathan, K., Asokane, C., Sylvia, J. I., Kalyanasundaram, P. and Swaminathan, P., 2012, "An Ultrasonic Scanning Technique for In-Site 'Bowing' Measurement of Protorype Fast Breeder Reactor Fuel Sub-Assembly," IEEE Trans. on Nuclear Science, Vol. 59, No. 1, pp. 174-181. https://doi.org/10.1109/TNS.2011.2177476
  4. Joo, Y. S., Park, C. G., Lee, J. H., Kim, J. B. and Lim, S. H., 2011, "Development of ultrasonic waveguide sensor for under-sodium inspection in a sodium-cooled fast reactor," NDT&E International, Vol. 44, pp. 239-246. https://doi.org/10.1016/j.ndteint.2010.10.008
  5. Kim, H. W., Joo, Y. S., Park, C. G., Kim, J. B. and Bae, J. H., 2014, "Ultrasonic Imaging in Hot Liquid Sodium Using a Plate-type Ultrasonic Waveguide Sensor," Journal of Nondestructive Evaluation, Vol. 33, pp. 676-683. https://doi.org/10.1007/s10921-014-0262-8
  6. Schmidt, T. R., 1984, "The remote field eddy current inspection technique," Materials Evaluation, Vol. 42, No. 2, pp. 225-230.
  7. Poguet, J., Fleury, G. Burat, O. and Moreau, G., 1998, "Circular phased array probes for inspection of Superphoenix steam generator tubes," Proc. of EPRI Phased Array Inspection Seminar.
  8. Xu, Y., Tagawa, A., Fujiki, K., Ueda, M. and Yamashita, T., 2009, "Development of a SH Wave Single Unit Electromagnetic Acoustic Transducer (EMAT) for MONJU Reactor Vessel In-Service Inspection," In 17th International Conference on Nuclear Engineering, American Society of Mechanical Engineers, Brussels, pp. 269-278.