지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 4,042 - 4,051 (10page)
- DOI
- https://doi.org/10.1016/j.net.2021.06.019
이용수
초록· 키워드
오류제보하기
In this work, we applied a multilevel modeling technique to estimate the diametral creep in the pressuretubes of Korean Canada Deuterium Uranium (CANDU) units. Data accumulated from in-service inspections were used to develop the model. To confirm the strength of the multilevel models, a 2-levelmultilevel model considering the relationship between channels for a CANDU unit was comparedwith existing linear models. The multilevel model exhibited a very robust prediction accuracy comparedto the linear models with different data pooling methods. A 3-level multilevel model, which consideredindividual bundles, channels, and units, was also implemented. The influence of the channel installationdirection was incorporated into the three-stage multilevel model. For channels that were previouslymeasured, the developed 3-level multilevel model exhibited a very good predictive power, and theprediction interval was very narrow. However, for channels that had never been measured before, theprediction interval widened considerably. This model can be sufficiently improved by the accumulationof more data and can be applied to other CANDU units
목차
등록된 정보가 없습니다.
참고문헌 (14)
참고문헌 신청
N. Christodoulou / 1996 / Modeling in-reactor deformation of Zr-2.5Nb pressure tubes in CANDU power reactors / Zirconium in the Nuclear Industry: Eleventh International Symposium 1295:518~537
R. A. Holt / 2008 / In-reactor deformation of cold-worked Zr-2. 5Nb pressure tubes / J. Nucl. Mater 372:182~214
M. H. A. Piro / 2020 / Fluid flow in a diametrally expanded CANDU fuel channel e part 2 : computational study / Nucl. Eng. Des 357:110372
D. Quach / 2007 / Improvements in pressure tube diametral creep predictions and statistical error modeling / 28th Annual Conference of the Canadian Nuclear Society and 31st CNS/CNA Student Conference 2007: "Embracing the Future: Canada's Nuclear Renewal and Growth" 3:1649~1660
J. Y. Lee / 2011 / Predicting diametral creep of the pressure tubes in CANDU reactors using fuzzy neural networks / J. Nucl. Sci. Technol 48:76~84
R. A. Holt / 2008 / In-reactor deformation of cold-worked Zr-2. 5Nb pressure tubes / J. Nucl. Mater 372:182~214
M. H. A. Piro / 2020 / Fluid flow in a diametrally expanded CANDU fuel channel e part 2 : computational study / Nucl. Eng. Des 357:110372
D. Quach / 2007 / Improvements in pressure tube diametral creep predictions and statistical error modeling / 28th Annual Conference of the Canadian Nuclear Society and 31st CNS/CNA Student Conference 2007: "Embracing the Future: Canada's Nuclear Renewal and Growth" 3:1649~1660
J. Y. Lee / 2011 / Predicting diametral creep of the pressure tubes in CANDU reactors using fuzzy neural networks / J. Nucl. Sci. Technol 48:76~84
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