A model of hydrogen passive autocatalytic recombiner and its validation via CFD simulations

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Passive autocatalytic recombiners (PAR) is the only used method for hydrogen removal from the containment buildings in modern nuclear reactors. Numerical models of such devices, based on the CFD approach, are the subject of this paper. The models may be coupled with two types of computer codes: the lumped parameter codes, and the computational fluid dynamics codes. This work deals with 2D numerical model of PAR and its validation. Gaseous hydrogen may be generated in water nuclear reactor systems in a course of a severe accident with core overheating. Therefore, a risk of its uncontrolled combustion appears which may be destructive to the containment structure.

[1] OECD/NEA: SOAR on containment thermalhydraulics and hydrogen distribution. Rep. NEA/CSNI(R) 99/16, Paris 1999.

[2] Preußer G., Freudenstein K.F., Reinders R.: Concept for the analysis of hydrogen problems in nuclear power plants after accidents. In: Proc. of the OECD/NEA/CSNI Workshop on the Implementation of Hydrogen Mitigation Techniques, Winnipeg, Manitoba 1996, 113-127.

[3] OECD/NEA: PWR fuel behaviour in design basis accident conditions. Rep. CSNI 86/129, Paris 1986.

[4] OECD/NEA: Source term assessment, containment atmosphere control systems and accident consequences. Rep. CSNI 87/135, Paris 1987.

[5] Arnould F., Bachellerie E. et al.: State of the art on hydrogen passive autocatalytic recombiner. Proc of the FIssion SAfety (FISA) ’2001. EU research in reactor safety, Luxembourg 2001.

[6] Deng J., Cao X.W.: A study on evaluating a passive autocatalytic recombiner PAR-system in the PWR large-dry containment. Nucl. Eng. Des. 238(2008), 2554-2560.

[7] Bachellerie E., Arnould F. et al.: Generic approach for designing and implementing a passive autocatalytic recombiner PAR system in nuclear power plant containments. Nucl. Eng. Des. 275(2002) 1-15.

[8] Bury T.: Thermodynamic consequences of hydrogen combustion within a containment of pressurized water reactor. Arch. Thermodyn. 32(2011), 4, 67-79.

[9] ANSYS-Fluent 14.0: User’s Guide. ANSYS, 2011.

[10] Levine R.D.: Molecular Reaction Dynamics. Cambridge University Press, 2005.

[11] Reinecke E.-A., Boehm J., Drinovac P., Struth S.: Modelling of catalytic recombiners: Comparison of REKO-DIREKT calculations with REKO-3 experiments. In: Proc. of Int. Conf. on Nuclear Energy for New Europe 2005, Bled, Sep. 5-8, 2005.

Archives of Thermodynamics

The Journal of Committee on Thermodynamics and Combustion of Polish Academy of Sciences

Journal Information

CiteScore 2016: 0.54

SCImago Journal Rank (SJR) 2016: 0.319
Source Normalized Impact per Paper (SNIP) 2016: 0.598


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