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

한국압력기기공학회 (Korean Society of Pressure Vessels and Piping)
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원자력발전소 비안전등급 배관의 내진해석 방법론 연구

Seismic Analysis Methodology for Non-Nuclear Safety Piping in Nuclear Power Plants

  • 서건창 (부산대학교 대학원 원자력공학전공, 한국수력원자력) ;
  • 반치범 (부산대학교 기계공학부)
  • 투고 : 2021.11.12
  • 심사 : 2022.06.08
  • 발행 : 2022.06.30
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초록

Currently, there is no technical standard and regulation for seismic analysis of non-nuclear safety piping. Accordingly, ASME Sec.III ND, a standards applied to safety class 3 piping, is applied. However, the technical standard applied for other than seismic analysis is ASME B31, which leads to controversy. In this study, the feasibility of applying ASME B31E was confirmed by reviewing rulescomparing technical standards, and evaluating piping allowable stress margins. The evaluation revealed that applying ASME B31.1 as a technical standard is too conservative compared to ASME Sec.III ND. On the other hand, ASME B31E (issued at the request of the industry) clearly presents the technical standards for seismic analysis of ASME B31 piping, and shows a similar level of conservatism compared to ASME Sec.III ND. It is expected to reduce the controversy over technical standards for seismic analysis of non-nuclear safety piping by applying ASME B31E.

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참고문헌

  1. KEPIC MN, 1995, "Nuclear Mechanical," Korea Electric Association, Seoul.
  2. ASME BPVC Sec.III, 1993, "Rules for Construction of Nuclear Facility Components," American Society of Mechanical Engineers, NY.
  3. KEPIC MGE, 2009, "Piping," Korea Electric Association, Seoul.
  4. ASME B31.1, 2008, "Power Piping," American Society of Mechanical Engineers, NY.
  5. ASME B31E, 2008, "Standard for the Seismic Design and Retrofit of Above- Ground Piping Systems," American Society of Mechanical Engineers, NY.
  6. Lee, S. H., Lee, Y. S., Kim, H. D., Lee, K. S., and Hwang, K. M., 2015, "Review on the Integrity Evaluation and Maintenance of Wall-Thinned Pipe," Trans. of the KPVP, Vol. 11, No. 2, pp.51-60.
  7. Rodabaugh, E. C. and Moore, S. E., 1975, "Stress Indices for ANSI Standard B16.11 Socket-Welding Fittings," Oak Ridge National Lab., Tennessee, ORNL-TM--4929
  8. PIPESTRESS Ver.3.9.0, 2016, © DST Computer Services S.A., CHE.
  9. Reg. Guide 1.61 Rev.0, 1973, "Damping Values for Seismic Design of Nuclear Power Plants," U.S. Atomic Energy Commission.
  10. Reg. Guide 1.143 Rev.2, 2001, "Design Guidance for Radioactive Waste Management Systems, Structures and Components Installed in Light-Water-Cooled Nuclear Power Plant," U.S. Atomic Energy Commission.
  11. Seo, K.C., 2022, Seismic Analysis Methodology for Non-Nuclear Safety Piping in Nuclear Power Plants, Pusan National University, M.S Thesis.