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원전 2차계통의 수화학 변화가 배관감육에 미치는 영향 분석Analysis of Pipe Wall-thinning Caused by Water Chemistry Change in Secondary System of Nuclear Power Plant
- Other Titles
- Analysis of Pipe Wall-thinning Caused by Water Chemistry Change in Secondary System of Nuclear Power Plant
- Issue Date
- Dec-2015
- Publisher
- 한국부식방식학회
- Keywords
- flow-accelerated corrosion; wall-thinning; water chemistry
- Citation
- CORROSION SCIENCE AND TECHNOLOGY, v.14, no.6, pp.325 - 330
- Indexed
- KCI
- Journal Title
- CORROSION SCIENCE AND TECHNOLOGY
- Volume
- 14
- Number
- 6
- Start Page
- 325
- End Page
- 330
- ISSN
- 1598-6462
- Abstract
- Pipe wall-thinning by flow-accelerated corrosion (FAC) is a significant and costly damage of secondary system piping in nuclear power plants (NPPs). All NPPs have their management programs to ensure pipe integrity from wall-thinning. This study analyzed the pipe wall-thinning caused by changing the amine, which is used for adjusting the water chemistry in the secondary system of NPPs. The pH change was analyzed according to the addition of amine. Then, the wear rate calculated in two different amines was compared at the steam cycle in NPPs. As a result, increasing the pH at operating temperature (Hot pH) can reduce the rate of FAC damage significantly. Wall-thinning is affected by amine characteristics depending on temperature and quality of water.
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Related Researcher
- Moon, Seung Jae
- COLLEGE OF ENGINEERING (SCHOOL OF MECHANICAL ENGINEERING)