Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Investigation on the thermal butt fusion performance of the buried high density polyethylene piping in nuclear power plant

  • Kim, Jong-Sung (Department of Nuclear Engineering, Sejong University) ;
  • Oh, Young-Jin (Power Engineering Research Institute, KEPCO E&C) ;
  • Choi, Sun-Woong (Department of Chemical Engineering and Nano-Bio Technology, Hannam University) ;
  • Jang, Changheui (Department of Nuclear & Quantum Engineering, KASIT)
  • Received : 2018.08.01
  • Accepted : 2019.02.01
  • Published : 2019.05.25
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Abstract

This paper presents the effect of fusion procedure on the fusion performance of the thermal butt fusion in the safety class III buried HDPE piping per various tests performed, including high speed tensile impact, free bend, blunt notched tensile, notched creep, and PENT tests. The suitability of fusion joints and qualification procedures was evaluated by comparing test results from the base material and buttfusion joints. From the notched tensile test result, it was found that the fused joints have much lower toughness than the base material. It was also identified that the notched tensile test is more desirable than the high speed tensile impact and free bend tests presented in the ASME Code Case N-755-3 as a fusion qualification test method. In addition, with regard to the single low-pressure fusion joint performances, the procedure given by the ISO 21307 was determined to be better that the one specified in the Code Case N-755-3.

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References

  1. http://www.plasticpipe.org/pdf/hdpe-pipe-used-in-nuclear-power-industy.pdf.
  2. http://www.nrc.gov/public-involve/conference-symposia/ric/past/2011/docs/posters/04-hdpe-piping-final.pdf.
  3. ASME Boiler and Pressure Vessel Committee, ASME B&PV Code Case N-755: Use of Polyethylene (PE) Class 3 Plastic Pipe, Section III, Division I and Section XI, 2007 edition, ASME, New York, USA, 2007.
  4. ASME Boiler and Pressure Vessel Committee, ASME B&PV Code Case N-755-3: Use of Polyethylene (PE) Class 3 Plastic Pipe, Section III, Division I and Section XI, 2015 edition, ASME, New York, USA, 2015.
  5. E. Focht, NRC concerns regarding the use of HDPE piping in safety-related nuclear applications, in: Proc. of Use of HDPE for Power Plant Piping Systems Workshop, Charlotte, North Carolina, USA, 2011.
  6. D.J. Shim, P. Krishnaswamy, E. Focht, Comparison of parent and butt fusion material properties of high density polyethylene, in: Proc. of the ASME Pressure Vessels and Piping Division Conference 2009, PVP2009-78066, Prague, Czech, 2009.
  7. International Organization for Standardization, ISO 21307, Corrected Version, Plastic Pipes and Fittings - Butt Fusion Jointing Procedures for Polyethylene(PE) Pipes and Fittings Used in the Construction of Gas and Water Distribution Systems, second ed., 2011.
  8. S.H. Beech, M. Ritz, Harmonisation of polyethylene pipe butt fusion procedures and test methods, in: Proc. of Plastic Pipes XIV Conference Budapest, Hungary, 2008.
  9. S.H. Beech, J. Grieser, D. Lowe, P. Vanspeybroeck, Harmonisation of polyethylene pipe butt fusion procedures and test methods, in: Proc. of Plastic Pipes XV Conference, Vancouver, Canada, 2010.
  10. S.H. Beech, C. Salles, U. Schulte, Harmonisation of polyethylene pipe butt fusion procedures and test methods - final conclusions, in: Proc. of Plastic Pipes XVI Conference, Barcelona, Spain, 2012.
  11. M. Troughton, A comparison of mechanical test methods for butt fusion joints in polyethylene pipes, in: Proc. of NACE Northern Area Western Conference, Calgary, Alberta, Canada, 2010.
  12. U.K. Water, WIS 4-32-08, Issue 3, Specification for the Fusion Joining of Polyethylene Pressure Pipeline Systems Using PE80 and PE100 Materials, 2002.
  13. Plastic Pipe Institute, Generic Butt Fusion Joining Procedure for Field Joining of Polyethylene Pipe, TR-33, 2012.
  14. Korea Petrochemical Industry Company, Ltd, Product Analysis Report for PE100 P600, 2011.
  15. H. Altenbach, K. Naumenko, Modeling of Creep for Structural Analysis, Springer, 2007.
  16. Dassault Systems, Simulia User's Manual, Ver.2016, 2016.

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