원전 배관의 두께 측정 데이터에 대한 신뢰도 분석 방법 및 적용

Title
원전 배관의 두께 측정 데이터에 대한 신뢰도 분석 방법 및 적용
Authors
문승재
Keywords
wall thinning; ultrasonic thickness measurement; reliability analysis
Issue Date
2015-02
Publisher
한국부식방식학회
Citation
CORROSION SCIENCE AND TECHNOLOGY, v. 14, NO 1, Page. 33-39
Abstract
Pipe wall-thinning by flow-accelerated corrosion and various types of erosion is significant damage in secondarysystem piping of nuclear power plants(NPPs). All NPPs in Korea have management programs to ensurepipe integrity from degradation mechanisms. Ultrasonic test(UT) is widely used for pipe wall thicknessmeasurement. Numerous UT measurements have been performed during scheduled outages. Wall-thinningrates are determined conservatively according to several evaluation methods developed by Electric PowerResearch Institute(EPRI). The issue of reliability caused by measurement error should be considered inthe process of evaluation. The reliability analysis method was developed for single and multiple measurementdata in the previous researches. This paper describes the application results of reliability analysis methodto real measurement data during scheduled outage and proved its benefits.
URI
http://kiss.kstudy.com/journal/thesis_name.asp?tname=kiss2002&key=3303138#http://hdl.handle.net/20.500.11754/22124
ISSN
1598-6462; 2288-6524
DOI
http://dx.doi.org/10.14773/cst.2015.14.1.33
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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