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
- 학술대회자료
- 저자정보
- 발행연도
- 2012.11
- 수록면
- 321 - 326 (6page)
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초록· 키워드
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In water-cooled nuclear power reactors, a large amount of hydrogen could be released following postulated severe accident leading to the melting of the core. In order to mitigate the risk of hydrogen combustion, nuclear reactor containments are equipped with passive autocatalytic recombiners(PAR), which preventively oxidize hydrogen for concentration lower than that of the flammability limit.
This study is mainly motivated to develop reliable simulator to predict the main features of PAR in context of opensource ‘OpenFOAM’. Catalytic reaction of H<SUB>2</SUB>-Pt is utilized by a single step reaction rate expression based on experimental relation. In order to account for multi-component diffusion effects, Fickian model is employed for species transport equations. For the performance of PAR, the efficiency of H<SUB>2</SUB> conversion is crucially affected by catalytic surface temperature. The conjugate heat transfer between gas flow and catalytic plates is applied to improve the predictive capability of temperature.
In present study, predicted mole fraction of H<SUB>2</SUB> and temperature have good agreements with experimental data of REKO-3 facility. The detailed discussions are made for the conversion characteristics of PAR, Numerical result indicates that the developed code has the capability to simulate the catalytic surface reaction of PAR.
This study is mainly motivated to develop reliable simulator to predict the main features of PAR in context of opensource ‘OpenFOAM’. Catalytic reaction of H<SUB>2</SUB>-Pt is utilized by a single step reaction rate expression based on experimental relation. In order to account for multi-component diffusion effects, Fickian model is employed for species transport equations. For the performance of PAR, the efficiency of H<SUB>2</SUB> conversion is crucially affected by catalytic surface temperature. The conjugate heat transfer between gas flow and catalytic plates is applied to improve the predictive capability of temperature.
In present study, predicted mole fraction of H<SUB>2</SUB> and temperature have good agreements with experimental data of REKO-3 facility. The detailed discussions are made for the conversion characteristics of PAR, Numerical result indicates that the developed code has the capability to simulate the catalytic surface reaction of PAR.
목차
1. 서론
2. 피동형 촉매 재결합기의 수치 해석 모델
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2014-422-000810772