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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.2
- 수록면
- 498 - 508 (11page)
- DOI
- https://doi.org/10.1016/j.net.2020.07.029
이용수
초록· 키워드
오류제보하기
Micro reactors are increasingly being considered for utilization as distributed power sources. Hence, theprobabilistic safety assessment (PSA) of a direct supercriticaleCO2ecooled fast reactor, called micromodular reactor (MMR), was performed in this study; this reactor was developed using innovative designconcepts. It adopted a modular design and passive safety systems to minimize site constraints. As theMMR is in its conceptual design phase, design weaknesses and valuable safety insights could be identifiedduring PSA. Level 1 internal event PSA was carried out involving literature survey, system characterization,identification of initiating events, transient analyses, development of event trees and faulttrees, and quantification. The initiating events and scenarios significantly contributing to core damagefrequency (CDF) were determined to identify design weaknesses in MMR. The most significant initiatingevent category contributing to CDF was the transients with the power conversion system initiallyavailable category, owing to its relatively high occurrence frequency. Further, an importance analysisrevealed that the safety of MMR can be significantly improved by improving the reliability of reactor tripand passive decay heat removal system operation. The findings presented in this paper are expected tocontribute toward future applications of PSA for assessing unconventional nuclear reactors in theirconceptual design phases.
목차
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참고문헌 (28)
참고문헌 신청
M.A. Gibson / 2017 / NASA’s Kilopower reactor development and the path to higher power missions / Proceedings of the 2017 IEEE Aerospace Conference :1~14
P. McClure / 2015 / Design of Megawatt Power Level Heat Pipe Reactors
A. Levinsky / 2018 / Westinghouse eVinciTM Reactor for Off-Grid Markets / American Nuclear Society Winter Meeting :11~15
C.K. Jo / 2018 / Core Nuclear Design of a Micro Modular High Temperature Gas-Cooled Reactor / Transactions of the 2018 Korean Nuclear Society Autumn Meeting
J. S. Jun / 2018 / Design Considerations of the Air-Cooled RCCS on the Very Small-Size HTGR / Transactions of the 2018 Korean Nuclear Society Autumn Meeting
P. McClure / 2015 / Design of Megawatt Power Level Heat Pipe Reactors
A. Levinsky / 2018 / Westinghouse eVinciTM Reactor for Off-Grid Markets / American Nuclear Society Winter Meeting :11~15
C.K. Jo / 2018 / Core Nuclear Design of a Micro Modular High Temperature Gas-Cooled Reactor / Transactions of the 2018 Korean Nuclear Society Autumn Meeting
J. S. Jun / 2018 / Design Considerations of the Air-Cooled RCCS on the Very Small-Size HTGR / Transactions of the 2018 Korean Nuclear Society Autumn Meeting
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