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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 26 - 32 (7page)
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초록· 키워드
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During the course of a severe accident in a light water nuclear reactor, large amounts ofhydrogen can be generated and released into the containment during reactor core degradation.
Additional burnable gases [hydrogen (H2) and carbon monoxide (CO)] may bereleased into the containment in the corium/concrete interaction. This could subsequentlyraise a combustion hazard. As the Fukushima accidents revealed, hydrogen combustioncan cause high pressure spikes that could challenge the reactor buildings and lead tofailure of the surrounding buildings. To prevent the gas explosion hazard, most mitigationstrategies adopted by European countries are based on the implementation of passiveautocatalytic recombiners (PARs). Studies of representative accident sequences indicatethat, despite the installation of PARs, it is difficult to prevent at all times and locations, theformation of a combustible mixture that potentially leads to local flame acceleration.
Complementary research and development (R&D) projects were recently launched to understandbetter the phenomena associated with the combustion hazard and to address theissues highlighted after the Fukushima Daiichi events such as explosion hazard in theventing system and the potential flammable mixture migration into spaces beyond theprimary containment. The expected results will be used to improve the modeling tools andmethodology for hydrogen risk assessment and severe accident management guidelines.
The present paper aims to present the methodology adopted by Institut de Radioprotectionet de Suˆ ret e Nucl eaire to assess hydrogen risk in nuclear power plants, in particular Frenchnuclear power plants, the open issues, and the ongoing R&D programs related to hydrogendistribution, mitigation, and combustion
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참고문헌 (23)
참고문헌 신청
A. Bleyer / 2005 / Evaluation of the Pressure Loads Generated by Hydrogen Explosion in Auxiliary Nuclear Building / NURETH 11 Conference
Autorite de Surete Nucleaire / / Evaluations compl ementaires de surete
C. Caroli / 2006 / The Development of Severe Accident Codes at IRSN and their Application to Support the Safety Assessment of EPR, Proceedings of ICONE 14 / 14th International Conf
D. Baraldi / 2007 / Hydrogen Combustion with Concentration Gradients in Experiments and Simulations: Preliminary Results of ENACCEF Benchmark / 2nd European Review Meeting on Seve
D. Paladino / 2012 / EURATOM-ROSATOM ERCOSAMSAMARA Projects on Containment Thermal-Hydraulics of Current and Future LWRs for Severe Accident Management / 2012 ICAPP
Autorite de Surete Nucleaire / / Evaluations compl ementaires de surete
C. Caroli / 2006 / The Development of Severe Accident Codes at IRSN and their Application to Support the Safety Assessment of EPR, Proceedings of ICONE 14 / 14th International Conf
D. Baraldi / 2007 / Hydrogen Combustion with Concentration Gradients in Experiments and Simulations: Preliminary Results of ENACCEF Benchmark / 2nd European Review Meeting on Seve
D. Paladino / 2012 / EURATOM-ROSATOM ERCOSAMSAMARA Projects on Containment Thermal-Hydraulics of Current and Future LWRs for Severe Accident Management / 2012 ICAPP
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