Nuclear Engineering and Technology

  • 제48권6호
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  • Pages.1404-1411
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  • 2016
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Thin-Plate-Type Embedded Ultrasonic Transducer Based on Magnetostriction for the Thickness Monitoring of the Secondary Piping System of a Nuclear Power Plant

  • Heo, Taehoon (Center for Safety Measurement, Korea Research Institute of Standards and Science) ;
  • Cho, Seung Hyun (Center for Safety Measurement, Korea Research Institute of Standards and Science)
  • 투고 : 2016.04.12
  • 심사 : 2016.05.18
  • 발행 : 2016.12.25
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초록

Pipe wall thinning in the secondary piping system of a nuclear power plant is currently a major problem that typically affects the safety and reliability of the nuclear power plant directly. Regular in-service inspections are carried out to manage the piping system only during the overhaul. Online thickness monitoring is necessary to avoid abrupt breakage due to wall thinning. To this end, a transducer that can withstand a high-temperature environment and should be installed under the insulation layer. We propose a thin plate type of embedded ultrasonic transducer based on magnetostriction. The transducer was designed and fabricated to measure the thickness of a pipe under a high-temperature condition. A number of experimental results confirmed the validity of the present transducer.

키워드

참고문헌

  1. K.M. Hwang, C.K. Lee, Pipe Wall Thinning Management Life Cycle in Korea, KEPCO-E&C Report, 2014.
  2. S.H. Lee, T.R. Kim, S.C. Jeon, K.M. Hwang, Thinned Pipe Management Program of Korean NPPs, Transactions of the 17th International Conference on Structural Mechanics in Reactor Technology (SMiRT 17), 2003. Paper # O04-2.
  3. Z. Zhimin, L. Jinsong, Z. Hui, Nuclear Power Plants Secondary Circuit Piping Wall-thinning Management in China, Third International Conference on Nuclear Power Plant Life Management (PLiM), 2012. IAEA-CN-194-033P.
  4. P.C. Wu, Erosion/corrosion-induced Pipe Wall Thinning in U.S. Nuclear Power Plants, U.S. Nuclear Regulatory Commission Report, 1989. NUREG-1344.
  5. R. Kazys, A. Voleisis, B. Voleisiene, High temperature ultrasonic transducers: review, Ultragarsas (Ultrasound) 63 (2008) 7-17.
  6. M. Budimir, A. Mohimi, C. Selcuk, T. Gan, High Temperature NDE Ultrasound Transducers for Condition Monitoring of Superheated Steam Pipes in Nuclear Power plants, 20th International Conference of Nuclear Energy for New Europe, 2011, pp. 502.1-502.8.
  7. X. Jiang, K. Kim, S. Zhang, J. Johnson, G. Salazar, Review: high-temperature piezoelectric sensing, Sensors 14 (2014) 144-169.
  8. R.T. Nisbet, Ultrasonic thickness measurements at high temperatures, NDT Tech. 3 (2004) 1-3.
  9. F.B. Cegla, P. Cawley, J. Allin, J. Davies, High-temperature (>500$^{\circ}C$) wall thickness monitoring using dry-coupled ultrasonic waveguide transducers, IEEE Trans. Ultrasonics Ferroelectrics Freq. Cont. 58-1 (2011) 156-167.
  10. F.B. Cegla, A.J.C. Jarvis, J.O. Davies, High temperature ultrasonic crack monitoring using SH waves, NDT&E Int. 44 (2011) 669-679. https://doi.org/10.1016/j.ndteint.2011.07.003
  11. F.B. Cegla, High Temperature Ultrasonic Monitoring with Permanently Installed Sensors, Proceedings of the National Seminar & Exhibition on Non-destructive Evaluation, 2011, pp. 360-363.
  12. F. Hernandez-Valle, S. Dixon, Initial tests for designing a high temperature EMAT with pulsed electromagnet, NDT&E Int. 43 (2010) 171-175. https://doi.org/10.1016/j.ndteint.2009.10.009
  13. F. Hernandez-Valle, S. Dixon, Preliminary Tests to Design an EMAT with Pulsed Electromagnet for High Temperature, AIP Conference Proceedings 1096, 2009, pp. 936-941.
  14. A.J. Ashish, P. Rajagopal, K. Balasubramaniam, A. Kumar, B.P. Rao, T. Jayakumar, Development of Magnetostriction Based Ultrasonic Transducer for in-situ High Temperature Inspection, NDE-2015, 2015.
  15. R.S. Sundar, S.C. Deevi, Soft magnetic FeCo alloys: alloy development, processing, and properties, Int. Mater. Rev. 50-3 (2005) 157-192. https://doi.org/10.1179/174328005X14339
  16. T. Heo, J. Park, B. Ahn, S.H. Cho, The feasibility study on a high-temperature application of the Magnetostrictive transducer employing a thin Fe-Co alloy patch, J. Korean Soc. Nondestructive Testing 31 (2011) 278-286.
  17. Y.Y. Kim, Y.E. Kwon, Review of magnetostrictive patch transducers and applications in ultrasonic nondestructive testing of waveguides, Ultrasonics 62 (2015) 3-19. https://doi.org/10.1016/j.ultras.2015.05.015
  18. G. Hubschen, UT with SH-waves and electromagnetic ultrasonic (EMUS) -transducers, Rev. Prog. Quant. Nondestruct. Eval. 9 (1990) 815-822.
  19. M. Spies, Computationally efficient SH-wave modeling in transversely isotropic media, J. Nondestruct. Eval. 19 (2000) 43-54.
  20. S.H. Cho, J.S. Lee, Y.Y. Kim, Guided wave transduction experiment using a circular magnetostrictive patch and a figure-of-eight coil in nonferromagnetic plates, Appl. Phys. Lett. 88 (2006) 224101. https://doi.org/10.1063/1.2205724
  21. J.S. Lee, Y.Y. Kim, S.H. Cho, Beam-focused shear-horizontal wave generation in a plate by a circular magnetostrictive patch transducer employing a planar solenoid array, Smart Mater. Struct. 18 (2009) 015009. https://doi.org/10.1088/0964-1726/18/1/015009

피인용 문헌

  1. Research and Implementation of a 1800°C Sapphire Ultrasonic Thermometer vol.2017, pp.None, 2016, https://doi.org/10.1155/2017/9710763
  2. Noninvasive, In Situ Acoustic Diagnosis and Monitoring of Corrosion in Molten-Salt Systems vol.75, pp.10, 2016, https://doi.org/10.5006/3253
  3. An integrated approach forinteroperability of standards, condition monitoring methods, and research models used in the power generation sector vol.1166, pp.1, 2016, https://doi.org/10.1088/1757-899x/1166/1/012010