Air Leakage Analysis of Research Reactor HANARO Building in Typhoon Condition for the Nuclear Emergency Preparedness

Lee, Goanyup; Lee, Haecho; Kim, Bongseok; Kim, Jongsoo; Choi, Pyungkyu

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자료유형: 학술저널

저자정보: Lee, Goanyup (Department of Emergency Preparedness, Korea Atomic Energy Research Institute) Lee, Haecho (Department of Emergency Preparedness, Korea Atomic Energy Research Institute) Kim, Bongseok (Department of Emergency Preparedness, Korea Atomic Energy Research Institute) Kim, Jongsoo (Department of Emergency Preparedness, Korea Atomic Energy Research Institute) Choi, Pyungkyu (Department of Emergency Preparedness, Korea Atomic Energy Research Institute)

저널정보: 대한방사선방어학회 방사선방어학회지 방사선방어학회지 제41권 제4호

발행연도: 2016.1

수록면: 354 - 358 (5page)

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연구배경

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연구방법

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연구결과

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Background: To find out the leak characteristic of research reactor 'HANARO' building in a typhoon condition Materials and Methods: MELCOR code which normally is used to simulate severe accident behavior in a nuclear power plant was used to simulate the leak rate of air and fission products from reactor hall after the shutdown of the ventilation system of HANARO reactor building. For the simulation, HANARO building was designed by MELCOR code and typhoon condition passed through Daejeon in 2012 was applied. Results and Discussion: It was found that the leak rate is $0.1%{\cdot}day^{-1}$ of air, $0.004%{\cdot}day^{-1}$ of noble gas and $3.7{\times}10^{-5}%{\cdot}day^{-1}$ of aerosol during typhoon passing. The air leak rate of $0.1%{\cdot}day^{-1}$ can be converted into $1.36m^3{\cdot}hr^{-1}$, but the design leak rate in HANARO safety analysis report was considered as $600m^3{\cdot}hr^{-1}$ under the condition of $20m{\cdot}sec^{-1}$ wind speed outside of the building by typhoon. Conclusion: Most of fission products during the maximum hypothesis accident at HANARO reactor will be contained in the reactor hall, so the direct radiation by remained fission products in the reactor hall will be the most important factor in designing emergency preparedness for HANARO reactor.

#Nuclear emergency #Leak rate #Source-term #Nuclear facility #Nuclear research reactor #Confinement building

참고문헌 (3)

참고문헌 신청

American National Standards Institute / 1981 / Containment system leakage testing requirements / ANSI/ANS-56.8 :14

Korea Atomic Energy Research Institute / 1995 / Leak rate criteria and test result for KMRR confinement / KM-210-RT-K076 :12~15

United Sates Department of Energy / 2004 / MELCOR computer code application guidance for leak path factor in documented safety analysis / Final report :26~31

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