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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.9
- 수록면
- 2,119 - 2,129 (11page)
- DOI
- https://doi.org/10.1016/j.net.2020.03.001
이용수
초록· 키워드
오류제보하기
Flow-accelerated corrosion (FAC), liquid droplet impingement erosion (LDIE), cavitation and ?ashing can cause continuous wall-thinning in nuclear secondary pipes. In order to prevent pipe rupture events resulting from the wall-thinning, most NPPs (nuclear power plants) implement their management programs, which include periodic thickness inspection using UT (ultrasonic test). Meanwhile, it is well known in ?eld experiences that the thickness measurement errors (or deviations) are often comparable with the amount of thickness reduction. Because of these errors, it is dif?cult to estimate wall-thinning exactly whether the signi?cant thinning has occurred in the inspected components or not. In the pre- vious study, the authors presented an approximate estimation procedure as the ?rst step for thickness measurement deviations at each inspected component and the statistical & quantitative characteristics of the measurement deviations using plant experience data. In this study, statistical signi?cance was quanti?ed for the current methods used for wall-thinning determination. Also, the authors proposed new estimation procedures for determining local wall-thinning to overcome the weakness of the current methods, in which the proposed procedure is based on analysis of variance (ANOVA) method using sub- grouping of measured thinning values at all measurement grids. The new procedures were also quan- ti?ed for their statistical signi?cance. As the results, it is con?rmed that the new methods have better estimation con?dence than the methods having used until now
목차
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참고문헌 (17)
참고문헌 신청
Electric Power Research Institute / 2010 / Mentoring Guide for Flow-Accelerated Corrosion Engineers
Electric Power Research Institute / 2013 / Recommendations for an Effective Flow-Accelerated Corrosion Program
Electric Power Research Institute / 2002 / Electricite de France (Edf), and Siemens Ag Power Generation
윤훈 / 2016 / Development of Wall-Thinning Evaluation Procedure for Nuclear Power Plant Piping — Part 1: Quantifi cation of Thickness Measurement Deviation / Nuclear Engineering and Technology 48(3):820~830
Electric Power Research Institute / 2006 / Determining Piping Wear Caused by Flow-Accelerated Corrosion from Single-Outage Inspection Data
Electric Power Research Institute / 2013 / Recommendations for an Effective Flow-Accelerated Corrosion Program
Electric Power Research Institute / 2002 / Electricite de France (Edf), and Siemens Ag Power Generation
윤훈 / 2016 / Development of Wall-Thinning Evaluation Procedure for Nuclear Power Plant Piping — Part 1: Quantifi cation of Thickness Measurement Deviation / Nuclear Engineering and Technology 48(3):820~830
Electric Power Research Institute / 2006 / Determining Piping Wear Caused by Flow-Accelerated Corrosion from Single-Outage Inspection Data
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