Experiments on MCCI with oxide and steel

Foit, Jerzy; Fischer, M.; Journeau, Christophe; Langrock, Gert

doi:10.1016/j.anucene.2014.06.025

Cited by 25 publications

(8 citation statements)

References 7 publications

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“…A series of large-scale MOCKA experiments have been performed at KIT (Foit et al, 2014) to study the interaction of a simulant oxide and metal melt in a stratified configuration. To allow for a long-term MCCI, additional enthalpy was supplied by means of alternating additions of thermite and Zr.…”

Section: Influence Of Metallic Layer On MCCImentioning

confidence: 99%

Recent severe accident research synthesis of the major outcomes from the SARNET network

Dorsselaere

Auvinen

Beraha

et al. 2015

Nuclear Engineering and Design

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The SARNET network (Severe Accident Research NETwork of excellence), co-funded by the European Commission from 2004 to 2013, has allowed to significantly improve the knowledge on severe accidents and to disseminate it through courses and ERMSAR conferences. The major investigated topics, involving more than 250 researchers from 22 countries, were in- and ex-vessel corium/debris coolability, molten-core–concrete-interaction, steam explosion, hydrogen combustion and mitigation in containment, impact of oxidising conditions on source term, and iodine chemistry. The ranking of the high priority issues was updated to account for the results of recent international research and for the impact of Fukushima nuclear accidents in Japan. In addition, the ASTEC integral code was further developed to capitalize the new knowledge. The network has reached self-sustainability by integration in mid-2013 into the NUGENIA Association. The main activities and outcomes of the network are presented

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Section: Influence Of Metallic Layer On MCCImentioning

confidence: 99%

Recent severe accident research synthesis of the major outcomes from the SARNET network

Dorsselaere

Auvinen

Beraha

et al. 2015

Nuclear Engineering and Design

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“…In the literature, several experimental and computational efforts exist investigating that phenomenon. Recent reviews reported by Foit et al (2014) and Cranga et al (2014) describe the MCCI experiments and relevant problems encountered in understanding of the phenomenon. Advancement of molten corium inside the concrete towards the lateral and vertical directions occasionally demonstrates unsymmetrical and inconsistent behaviors in the experiments (Farmer et al 2006).…”

Section: Introductionmentioning

confidence: 98%

Natural convection in wake of molten metal moving with phase change of wax

Erkan

Chai

Okamoto

2015

J Vis

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“…The characteristics of the debris accumulated in the RPV can be estimated from those of the debris and corium produced by severe-accident experimental programs, such as the Phebus-FP and MASCA projects, at the Three Mile Island Nuclear Power Plant Unit 2 (TMI-2) [6][7][8][9]. On the other hand, although MCCI test products have been analyzed at the millimeter and centimeter scale with respect to understanding the MCCI progression [10,11], knowledge of characteristics such as the phase and microstructure of MCCI products at the micrometer scale is limited to information on Chernobyl lava-like fuel-containing materials (LFCM) and corium spreading test materials [12,13]. Moreover, the composition of an LFCM differs from that of an MCCI product generated in a light-water reactor (LWR).…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic evaluation of the solidification phase of molten core–concrete under estimated Fukushima Daiichi nuclear power plant accident conditions

Kitagaki

Yano

Ogino

et al. 2017

Journal of Nuclear Materials

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The solidification phases of molten core-concrete under the estimated molten coreconcrete interaction (MCCI) conditions in the Fukushima Daiichi Nuclear Power Plant Unit 1 were predicted using the thermodynamic equilibrium calculation tool, FactSage 6.2, and the NUCLEA database in order to contribute toward the 1F decommissioning work and to understand the accident progression via the analytical results for the 1F MCCI products. We showed that most of the U and Zr in the molten core-concrete forms (U,Zr)O 2 and (Zr,U)SiO 4 , and the formation of other phases with these elements is limited. However, the formation of (Zr,U)SiO 4 requires a relatively long time because it involves a change in the crystal structure from fcc-(U,Zr)O 2 to tet-(U,Zr)O 2 , followed by the formation of (Zr,U)SiO 4 by reaction with SiO 2. Therefore, the formation of (Zr,U)SiO 4 is limited under quenching conditions. Other common phases are the oxide phases, CaAl 2 Si 2 O 8 , SiO 2 , and CaSiO 3 , and the metallic phases of the Fe-Si and Fe-Ni alloys. The solidification phenomenon of the crust under quenching conditions and that of the molten pool under thermodynamic equilibrium conditions in the 1F MCCI progression are discussed.

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Experiments on MCCI with oxide and steel

Cited by 25 publications

References 7 publications

Recent severe accident research synthesis of the major outcomes from the SARNET network

Recent severe accident research synthesis of the major outcomes from the SARNET network

Natural convection in wake of molten metal moving with phase change of wax

Thermodynamic evaluation of the solidification phase of molten core–concrete under estimated Fukushima Daiichi nuclear power plant accident conditions

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