Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

Full text (ru)

V. H. Moghaddam, I. V. Kazachkov

National Technical University of Ukraine "Kyiv Polytechnic Institute", Kyiv, Ukraine

Abstract: Developed mathematical model and some results of its application to the element of the passive protection system against severe accidents at NPP with water pool under reactor vessel for corium melt and particles' cooling are presented. This element of a system is penetration behavior of the high-temperature corium jet into volatile coolant pool, with account of the vapor produced on a melt jet penetration. Success of the problem solution determines an effectiveness and durability of the passive protection system against severe accidents. Therefore, the obtained results may be useful for the development and calculation of such passive protection systems at the NPP.

Keywords: severe accident, jet, corium, pool, penetration, model.

1. Казачков И. В. Современное состояние и некоторые проблемы моделирования тяжелых аварий на зарубежных АЭС. Ядерная и радиационная безопасность 1 (2003) 25.

2. Казачков И. В., Али Хасан Могаддам. Моделирование теплогидравлических процессов при тяжелых авариях на АЭС (Киев, НТУУ "КПИ", 2008) 172 с.

3. Али Хасан Могаддам, Казачков И. В. Удержание кориума в контейнменте в тяжелых авариях на АЭС. Энергетика: економіка, технології, екологія 2 (2007) 13.

4. Park H. S., Kazachkov I. V., Sehgal B. R. et al. Analysis of Plunging Jet Penetration into Liquid Pool in Isothermal Conditions. ICMF-2001: Fourth International Conference on Multiphase Flow (New Orleans, Louisiana, USA, May 27 - June 1, 2001) p. 65.

5. Лаврентьев M. A., Шабат Б. В. Проблемы гидродинамики и их математические модели (Москва: Наука) 1973.

6. Eichelberger R. J. Experimental Test of the Theory of Penetration by Metallic Jets. J. Appl. Physics 27 (1956) 1. https://doi.org/10.1063/1.1722198

7. Кинеловский С. А., Маевский К. К. Проникание кумулятивных струй в твердую преграду. Журнал прикладной механики и технической физики 2 (1989) 150.

8. Бэтчелор Дж. Введение в динамику жидкости. Пер. с англ. (Москва: Мир, 1973) 778 с.

9. Bui V. A., Dinh T. N., Sehgal B. R. Numerical Simulation of Surface Instability Phenomena Associated with Fuel-Coolant Interaction. Proc. 8th Int. Topical Meeting on Nuclear Reactor Thermal Hydraulics (NuReTH-8) (Kyoto, Japan, September 1997).