2014 1(14)

Back to table of content

   Short abstract

 

Pages:

45 - 50

Language:

RU

Ref.:

6


Click to get extended abstract


Download paper: [RU]

2014_1(14)_7.pdf

 

 

ENGINEERING-APPLICATION FORMULAS FOR CALCULATING RATE OF INTERACTION BETWEEN THE ZR- AND U-BEARING MELT AND CORE CATCHER SACRIFICIAL MATERIAL

Sulatskiy A.A.

A.P.Aleksandrov Scientific Research Tecnological Institute (NITI), Sosnovy Bor, Russia


Citation:

Sulatskiy, A.A., (2014) Engineering-application formulas for calculating rate of interaction between the Zr- and U-bearing melt and core catcher sacrificial material, Modern Science: Researches, Ideas, Results, Technologies, Iss. #1(14), PP. 45 - 50.


Keywords:

NPP; severe accident; molten corium; core catcher; sacrificial material; uranium; zirconium; interaction; liquid-phase burning; mathematical model; engineering-application formulas


Abstracts:

Work objective is to develop no-iteration formulas for evaluating the rate of interaction between the Zr- and U-bearing melt and a sacrificial material having a high oxidation potential. Work methods include the theoretical analysis of the previously developed numerical model of the Zr- and U-bearing melt interaction with the solid sacrificial material having an efficient oxidant in the regime of liquid-phase burning. Work results. No-iteration engineering formulas have been produced for calculating the temperature of burning front and its progression speed at the interaction between melt and sacrificial material. They are applicable for describing the interaction of sacrificial material with melt of suboxidized corium (i.e. oxidic, containing unoxidized zirconium) and metallic ones, containing unoxidized Zr and U. The formulas are produced both for the case of totally exothermic interaction between the melt and sacrificial material, and for the totally endothermic interaction. The formulas are limited by their applicability only for the melt not having own internal heat deposition. Scientific novelty. For the first time the engineering-application ratios are produced, which describe the process of liquid-phase burning taking place at the interaction of Zr- and U-bearing melt and the sacrificial material having a high oxidation potential. Practical value. The developed formulas provide the no-iteration method for evaluating the rate of interaction (ablation) of the sacrificial material at its interaction with Zr- and U-bearing melt.


References:

  1. Asmolov V.G., Bechta S.V., Berkovich V.M. et al. VVER-1000 Reactor Core Melt Catcher of Cold Crucible Type // Procideengs of Internatioanl Congress on Advances in Nuclear Power Plants (ICAPP 05), May 1519, 2005 - Seoul, Korea - Paper 5238.

  2. Granovsky V.S, Sulatsky A.A., Khabensky V.B. et al. Modeling of Melt Retention in EU-APR1400 Ex-Vessel Core Catcher // Proceedings of International Congress on Advances in Nuclear Power Plants (ICAPP 12), June 24-28, 2012 - Chicago, USA - Paper 12348.

  3. Sulatskiy, A.A., (2012) Mathematical model of zirconium liquid-phase burning, Modern Science: Researches, Ideas, Results, Technologies, Iss. #2(10), PP. 3 - 9.

  4. Sulatskiy, A.A., (2013) Mathematical model of the interaction between corium melt, containing zirconium and uranium, and sacrificial material of the core catcher, Modern Science: Researches, Ideas, Results, Technologies, Iss. #1(12), PP. 55 - 61.

  5. Beshta S.V., Vitol S.A., Granovskiy V.S. et al. Formation of molten pool into crucible type core catcher for NPP with WWER // Thermal Engineering, 2011, 5, P.61-65.

  6. Beshta S.V., Khabenskiy V.B., Granovskiy V.S. et al. Interaction between oxidic sacrificial material of core catcher and molten corium in severe accident of NPP with WWER // Proceedings of the 5-th Russian Conference on Heat Transfer, Russia, Moscow, October 25-29, 2010, V.1.

 

 
     

© SPIC "Kappa", LLC 2009-2016