Corrosion Science and Technology

  • 제15권6호
  • /
  • Pages.320-325
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  • 2016
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  • 1598-6462(pISSN)
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  • 2288-6524(eISSN)
한국부식방식학회 (The Corrosion Science Society of Korea)
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배관감육 관리를 위한 고정식 및 탈착식 보온재 설치 경제성 분석

Economic Analysis of Installing Fixed and Removable Insulation for Pipe Wall Thinning Management

  • 투고 : 2016.12.13
  • 심사 : 2016.12.26
  • 발행 : 2016.12.31
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초록

To perform ultrasonic testing (UT) thickness measurement of the secondary side piping installed in nuclear power plants, the insulation for preventing heat loss should be removed. The type of insulation can be divided into fixed and removable insulation. Fixed and removable insulation have their own strengths and weaknesses. Removable insulation has been installed in the components susceptible to wall thinning caused by FAC and erosion from Shin-Kori unit 1, which commenced its commercial operation in 2011. In this paper, the number of repeated inspections of components and the number of replacements of fixed insulation were estimated and a more economical way was identified based on the manufacturing and installation costs for fixed and removable insulation.

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참고문헌

  1. K. M. Hwang and D. Y. Lee, Corros. Sci. Tech., 11, 218 (2012). https://doi.org/10.14773/cst.2012.11.6.218
  2. EPRI, TR-1011231J, Horowitz, Recommendations for Controlling Cavitation, Flashing, Liquid Droplet Impingement Erosion, and Solid Particle Erosion in Nuclear Power Plant Piping Systems, Final Report (2004).
  3. K. M. Hwang, Technical Review Report on the Installation of Removable Insulation for the pipes needed to be Managed Wall Thinning, TPS TR 2013-007, KEPCO-E&C (2013).
  4. K. M. Hwang, Proceedings of the 2014 The CSSK Spring Meeting on the Comparison of Economic Feasibility Between Removable and Fixed-Insulation for Pipe Wall Thinning Management, p. 18, CSSK, Gwangju (2013).