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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2019.11
- 수록면
- 1,935 - 1,940 (6page)
이용수
초록· 키워드
오류제보하기
Missing pellet surface(MPS) are one of the causes of Pellet-Clad Mechanical Interaction(PCMI) failure of cladding in nuclear power plants(NPPs) and it results in reducing the product quality and integrity of nuclear fuels. Thus, in order to increase the MPS resistance of UO₂ pellets, it is very important to improve the thoughtness and to change the shapes of UO₂ pellet end-face. Especially, changing the shape of UO₂ pellet end-face is able to effectively improve MPS resistance of UO₂ pellets. Therefore, this study was selected candidate MPS resistant UO₂ pellet end-face shape by FEM and then performed nuclear fuel rod design for 5-types MPS resistance UO₂ pellet by commercial ROPER code. Based on the results of nuclear fuel rod design simulation, the effect of integrity of nuclear fuel rod with UO₂ pellet’s end-face shape change was evaluated.
목차
Abstract
1. 서론
2. MPS 저감 UO₂ 소결체 설계
3. 상용 연료봉 성능 평가
4. 정리 및 향후 계획
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자유 낙하 충격 시험을 통한 UO₂ 소결체 표면결함에 미치는 End-face 형상 영향 평가
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