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Title: Analysis of the KROTOS KFC test by coupling X-Ray image analysis and MC3D calculations

Abstract

During a hypothetical severe accident sequence in a Pressurized Water Reactor (PWR), the hot molten materials (corium) issuing from the degraded reactor core may generate a steam explosion if they come in contact with water and may damage the structures and threaten the reactor integrity. The SERENA program is an international OECD project that aims at helping the understanding of this phenomenon also called Fuel Coolant Interaction (FCI) by providing data. CEA takes part in this program by performing tests in its KROTOS facility where steam explosions using prototypic corium can be triggered. Data about the different phases in the premixing are extracted from the KROTOS X-Ray radioscopy images by using KIWI software (KROTOS Image analysis of Water-corium Interaction) currently developed by CEA. The MC3D code, developed by IRSN, is a thermal-hydraulic multiphase code mainly dedicated to FCI studies. It is composed of two applications: premixing and explosion. An overall FCI calculation with MC3D requires a premixing calculation followed by an explosion calculation. The present paper proposes an alternative approach in which all the features of the premixing are extracted from the X-Ray pictures using the KIWI software and transferred to an MC3D dataset for a direct simulation of themore » explosion. The main hypothesis are discussed as well as the first explosion results obtained with MC3D for the KROTOS KFC test. These results are rather encouraging and are analyzed on the basis of comparisons with the experimental data. (authors)« less

Authors:
; ; ; ; ; ; ; ;  [1]
  1. Commissariat a l'Energie Atomique et Aux Energies Alternatives, CEA Cadarache, DEN, F-13108 Saint-Paul-Les-Durance (France)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
OSTI Identifier:
22107800
Resource Type:
Conference
Resource Relation:
Conference: ICAPP '12: 2012 International Congress on Advances in Nuclear Power Plants, Chicago, IL (United States), 24-28 Jun 2012; Other Information: Country of input: France; 13 refs.; Related Information: In: Proceedings of the 2012 International Congress on Advances in Nuclear Power Plants - ICAPP '12| 2799 p.
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 97 MATHEMATICAL METHODS AND COMPUTING; COMPARATIVE EVALUATIONS; COMPUTER CODES; FUEL-COOLANT INTERACTIONS; HYPOTHETICAL ACCIDENTS; IMAGE PROCESSING; NUCLEAR POWER PLANTS; PWR TYPE REACTORS; REACTOR CORES; SIMULATION; STEAM; THERMAL HYDRAULICS; X RADIATION

Citation Formats

Brayer, C., Charton, A., Grishchenko, D., Fouquart, P., Bullado, Y., Compagnon, F., Correggio, P., Cassiaut-Louis, N., and Piluso, P. Analysis of the KROTOS KFC test by coupling X-Ray image analysis and MC3D calculations. United States: N. p., 2012. Web.
Brayer, C., Charton, A., Grishchenko, D., Fouquart, P., Bullado, Y., Compagnon, F., Correggio, P., Cassiaut-Louis, N., & Piluso, P. Analysis of the KROTOS KFC test by coupling X-Ray image analysis and MC3D calculations. United States.
Brayer, C., Charton, A., Grishchenko, D., Fouquart, P., Bullado, Y., Compagnon, F., Correggio, P., Cassiaut-Louis, N., and Piluso, P. Sun . "Analysis of the KROTOS KFC test by coupling X-Ray image analysis and MC3D calculations". United States.
@article{osti_22107800,
title = {Analysis of the KROTOS KFC test by coupling X-Ray image analysis and MC3D calculations},
author = {Brayer, C. and Charton, A. and Grishchenko, D. and Fouquart, P. and Bullado, Y. and Compagnon, F. and Correggio, P. and Cassiaut-Louis, N. and Piluso, P.},
abstractNote = {During a hypothetical severe accident sequence in a Pressurized Water Reactor (PWR), the hot molten materials (corium) issuing from the degraded reactor core may generate a steam explosion if they come in contact with water and may damage the structures and threaten the reactor integrity. The SERENA program is an international OECD project that aims at helping the understanding of this phenomenon also called Fuel Coolant Interaction (FCI) by providing data. CEA takes part in this program by performing tests in its KROTOS facility where steam explosions using prototypic corium can be triggered. Data about the different phases in the premixing are extracted from the KROTOS X-Ray radioscopy images by using KIWI software (KROTOS Image analysis of Water-corium Interaction) currently developed by CEA. The MC3D code, developed by IRSN, is a thermal-hydraulic multiphase code mainly dedicated to FCI studies. It is composed of two applications: premixing and explosion. An overall FCI calculation with MC3D requires a premixing calculation followed by an explosion calculation. The present paper proposes an alternative approach in which all the features of the premixing are extracted from the X-Ray pictures using the KIWI software and transferred to an MC3D dataset for a direct simulation of the explosion. The main hypothesis are discussed as well as the first explosion results obtained with MC3D for the KROTOS KFC test. These results are rather encouraging and are analyzed on the basis of comparisons with the experimental data. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

Conference:
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