Evaluation of hydrogen recombination characteristics of a PAR using SPARC PAR experimental results
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Passive auto-catalytic recombiners (PARs) are widely used to mitigate a hydrogen hazard. The first step to evaluate the hydrogen safety by PARs is to obtain qualified test data of the PARs for validation of their analytical model. SPARC PAR tests SP8 and SP9 were conducted to evaluate the hydrogen recombination characteristics of a honeycomb-shaped catalyst PAR. To obtain the hydrogen recombination rate from the PAR test data, two methods, Method-1 and Method-2, introduced by the THAI project, were applied. Since a large gradient of hydrogen concentration developed during hydrogen injection can cause a large error in the hydrogen mass obtained by integrating the measured hydrogen concentrations, a gate was installed at the PAR inlet to homogenize hydrogen in the test vessel before the PAR operation in the tests. A computational fluid dynamics (CFD) code with a PAR model was also applied to evaluate the characteristics of the PAR recombination according to the PAR inlet conditions, and the results were compared with those from Method-1 and Method-2. It was confirmed that the recombination rates from Method-1 require a correction factor to be compatible with results from Method-2 and the CFD simulation in the case of the SPARC-PAR tests
Abstract
Passive auto-catalytic recombiners (PARs) are widely used to mitigate a hydrogen hazard. The first step to evaluate the hydrogen safety by PARs is to obtain qualified test data of the PARs for validation of their analytical model. SPARC PAR tests SP8 and SP9 were conducted to evaluate the hydrogen recombination characteristics of a honeycomb-shaped catalyst PAR. To obtain the hydrogen recombination rate from the PAR test data, two methods, Method-1 and Method-2, introduced by the THAI project, were applied. Since a large gradient of hydrogen concentration developed during hydrogen injection can cause a large error in the hydrogen mass obtained by integrating the measured hydrogen concentrations, a gate was installed at the PAR inlet to homogenize hydrogen in the test vessel before the PAR operation in the tests. A computational fluid dynamics (CFD) code with a PAR model was also applied to evaluate the characteristics of the PAR recombination according to the PAR inlet conditions, and the results were compared with those from Method-1 and Method-2. It was confirmed that the recombination rates from Method-1 require a correction factor to be compatible with results from Method-2 and the CFD simulation in the case of the SPARC-PAR tests
참고문헌 (24)
- "Hydrogen Tank Explosion in Gangneung, South Korea"[URL]
- Takashi Tsuruda, "Nuclear Power Plant Explosions at Fukushima-Daiichi", Procedia Engineering, 62, pp.71~77 (2013), Elsevier BV[DOI]
- 홍성완, "RESEARCH EFFORTS FOR THE RESOLUTION OF HYDROGEN RISK", Nuclear Engineering and Technology, 47(1), pp.33~46 (2015), 한국원자력학회
- Harald Dimmelmeier, "Computational validation of the EPR™ combustible gas control system", Nuclear Engineering and Design, 249, pp.118~124 (2012), Elsevier BV[DOI]
- W.A. Dewit, "Hydrogen Recombiner Development at AECL", Proceedings of the OECD, CSNI Workshop on the Implementation of Hydrogen Mitigation Techniques, pp.1996[DOI]
- "AREVA Passive Autocatalytic Recombiner" (2020)[URL]
- E. Bachellerie, "Generic approach for designing and implementing a passive autocatalytic recombiner PAR-system in nuclear power plant containments", Nuclear Engineering and Design, 221(1-3), pp.151~165 (2003), Elsevier BV[DOI]
- Jae-Won Park, "Demonstrative testing of honeycomb passive autocatalytic recombiner for nuclear power plant", Nuclear Engineering and Design, 241(10), pp.4280~4288 (2011), Elsevier BV[DOI]
- Stéphane Mimouni, "CFD recombiner modeling and validation on the H2-par and Kali-H2 experiments", Science and Technology of Nuclear Installations, 2011, pp.1~13 (2011), Hindawi Limited[DOI]
- Jongtae Kim, "Experimental Study on Hydrogen Recombination Characteristics of a Passive Autocatalytic Recombiner during Spray Operation", Hydrogen, 3(2), pp.197~217 (2022), MDPI AG[DOI]
- Hydrogen and Fission Product Issues Relevant for Containment Safety Assessment under Severe Accident Conditions, "T. Kanzleiter", OECD-NEA THAI Project, ~, pp.Reactor Safety Research Project 1501326 (2010)
- B. Simon, "Investigation of PAR behavior in the REKO-4 test facility", Proc. 20th Int. Conf. Nuclear Engineering ICONE-20 (2012)
- L.B. Gardner, "Hydrogen recombination scaling experiments at CNL’s hydrogen safety test facility", Nuclear Engineering and Design, 377, pp.111152~ (2021), Elsevier BV[DOI]
- Aerosol and Iodine Issues and Hydrogen Mitigation under Accidental Conditions in Water Cooled Reactors OECD-NEA Thai-2 Project Final Report, "S. Gupta", ~ (2015)
- Passive Autocatalytic Recombiner Operation under Counter-current Flow Conditions (Test Series HR-46 – HR-50) OECD-NEA Thai-3Project Quick Look Report, "E. Schmidt", ~ (2016)
- P Royl, "Analysis of steam and hydrogen distributions with PAR mitigation in NPP containments", Nuclear Engineering and Design, 202(2-3), pp.231~248 (2000), Elsevier BV[DOI]
- X.G. Huang, "Analysis of hydrogen risk mitigation with passive autocatalytic recombiner system in CPR1000 NPP during a hypothetical station blackout", Annals of Nuclear Energy, 38(12), pp.2762~2769 (2011), Elsevier BV[DOI]
- Stephan Kelm, "The Tailored CFD Package ‘containmentFOAM’ for Analysis of Containment Atmosphere Mixing, H2", CO Mitigation and Aerosol Transport, 2021, pp.6(3), 100~[DOI]
- Ernst-Arndt Reinecke, "Validation and Application of the REKO-DIREKT Code for the Simulation of Passive Autocatalytic Recombiner Operational Behavior", Nuclear Technology, 196(2), pp.355~366 (2016), Informa UK Limited[DOI]
- J. Kim, "Validation and Application of a Code for 3-D Analysis of Hydrogen Behavior during Severe Accidents", Transactions of the Korean Nuclear Society Spring Meeting
- J. Kim, "Wall Heat Transfer Modeling for Simulation of a Transient Thermal Hydraulics", 12th OpenFOAM Workshop, pp.24~27 (2017), Univ. of Exeter
- "Introduction of KNT PAR" (2020)[URL]
- Jongtae Kim, "Thermal hydraulic modelling of grating effect for application to 3-dimensional analysis of hydrogen behavior in NPP containment", Nuclear Engineering and Design, 380, pp.111291~ (2021), Elsevier BV[DOI]