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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 1,307 - 1,313 (7page)
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초록· 키워드
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Recent analysis results with realistic assumptions provide the variability of operator allowable time forthe initiation of aggressive cooldown under small break loss of coolant accident or steam generator tuberupture with total failure of high pressure safety injection. We investigated how plant risk may varydepending on the variability of operators’ failure probability of timely initiation of aggressive cooldown. Using a probabilistic safety assessment model of a nuclear power plant, we showed that plant risks had alinear relation with the failure probability of aggressive cooldown and could be reduced by up to 10% asaggressive cooldown is more reliably performed. For individual accident management, we found thatcore damage potential could be gradually reduced by up to 40.49% and 63.84% after a small break loss ofcoolant accident or a steam generator tube rupture, respectively. Based on the importance of timelyinitiation of aggressive cooldown by main control room operators within the success criteria, implicationsfor improvement of emergency operating procedures are discussed. We recommend conductingfurther detailed analyses of aggressive cooldown, commensurate with its importance in reducing risks innuclear power plants
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참고문헌 (29)
참고문헌 신청
J. M, W.H. Tong / 1990 / Analysis of Core Damage Frequency: Surry Power Station, Unit 1, Internal Events
R.C. Bertucio / 1990 / Analysis of Core Damage Frequency: Sequoyah, Unit 1, Internal Events
M.B. Sattison / 1990 / Analysis of Core Damage Frequency: Zion, Unit 1, Internal Events
P. Clement / 1992 / OECD/NEA/CSNI International Standard Problem No.27 - BETHSY Experiment 9.1B 2" Cold Leg Break without HPSI and with Delayed Ultimate Procedure Comparison Report
H. Asaka / 1998 / Secondary-side depressurization during PWR cold-leg small break LOCAs based on ROSA-V/LSTF experiments and analyses / J. Nucl. Sci. Technol 35:905~915
R.C. Bertucio / 1990 / Analysis of Core Damage Frequency: Sequoyah, Unit 1, Internal Events
M.B. Sattison / 1990 / Analysis of Core Damage Frequency: Zion, Unit 1, Internal Events
P. Clement / 1992 / OECD/NEA/CSNI International Standard Problem No.27 - BETHSY Experiment 9.1B 2" Cold Leg Break without HPSI and with Delayed Ultimate Procedure Comparison Report
H. Asaka / 1998 / Secondary-side depressurization during PWR cold-leg small break LOCAs based on ROSA-V/LSTF experiments and analyses / J. Nucl. Sci. Technol 35:905~915
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