European experiments on 2-D molten core concrete interaction

HECLA and VULCANO

Christophe Journeau, Jean Michel Bonnet, Eric Boccaccio, Pascal Piluso, Jose Monerris, Michel Breton, Gerald Fritz, Tuomo Sevón, Pekka H. Pankakoski, Stefan Holmström, Jouko Virta

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

Abstract

This paper presents results from two ongoing European experimental programs on molten core concrete interactions: HECLA at VTT and VULCANO at the Commissariat à l’Énergie Atomique. In the HECLA experiments, metallic melt is poured into a cylindrical concrete crucible. The focus is on the initial, pouring phase of the interaction. Therefore, decay heat simulation is not required. The HECLA-2 experiment involved 50 kg of stainless steel at 1700°C and siliceous concrete. The final ablation depths were 25–30 mm in the basemat and ~15 mm in the side wall. The VULCANO VB experiments have been devoted to the study of the interaction of 28 to 45 kg of oxidic corium with silica-rich or limestone-rich concretes. These tests focus on long-term ablation and require the use of induction heating to simulate the decay heat fluxes. Anisotropic ablation between the horizontal and vertical direction has been observed with silica-rich concrete, confirming the CCI tests. A new series of experiments VULCANO VBS has been launched in which there are both oxide and metallic phases in the melt. In these tests, magnetic screening is used so that the induction power is provided almost only to the upper oxidic layer after stratification.
Original languageEnglish
Pages (from-to)189-200
Number of pages12
JournalNuclear Technology
Volume170
Issue number1
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed
Event2008 International Congress on Advances in Nuclear Power Plants, ICAPP’08 - Anaheim, United States
Duration: 8 Jun 200812 Jun 2008

Fingerprint

Molten materials
Concretes
Ablation
Experiments
Silica
Induction heating
Crucibles
Limestone
Heat flux
Screening
Stainless steel
Oxides

Keywords

  • corium
  • concrete
  • severe accident

Cite this

Journeau, C., Bonnet, J. M., Boccaccio, E., Piluso, P., Monerris, J., Breton, M., ... Virta, J. (2010). European experiments on 2-D molten core concrete interaction: HECLA and VULCANO. Nuclear Technology, 170(1), 189-200. https://doi.org/10.13182/NT10-A9457
Journeau, Christophe ; Bonnet, Jean Michel ; Boccaccio, Eric ; Piluso, Pascal ; Monerris, Jose ; Breton, Michel ; Fritz, Gerald ; Sevón, Tuomo ; Pankakoski, Pekka H. ; Holmström, Stefan ; Virta, Jouko. / European experiments on 2-D molten core concrete interaction : HECLA and VULCANO. In: Nuclear Technology. 2010 ; Vol. 170, No. 1. pp. 189-200.
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abstract = "This paper presents results from two ongoing European experimental programs on molten core concrete interactions: HECLA at VTT and VULCANO at the Commissariat {\`a} l’{\'E}nergie Atomique. In the HECLA experiments, metallic melt is poured into a cylindrical concrete crucible. The focus is on the initial, pouring phase of the interaction. Therefore, decay heat simulation is not required. The HECLA-2 experiment involved 50 kg of stainless steel at 1700°C and siliceous concrete. The final ablation depths were 25–30 mm in the basemat and ~15 mm in the side wall. The VULCANO VB experiments have been devoted to the study of the interaction of 28 to 45 kg of oxidic corium with silica-rich or limestone-rich concretes. These tests focus on long-term ablation and require the use of induction heating to simulate the decay heat fluxes. Anisotropic ablation between the horizontal and vertical direction has been observed with silica-rich concrete, confirming the CCI tests. A new series of experiments VULCANO VBS has been launched in which there are both oxide and metallic phases in the melt. In these tests, magnetic screening is used so that the induction power is provided almost only to the upper oxidic layer after stratification.",
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author = "Christophe Journeau and Bonnet, {Jean Michel} and Eric Boccaccio and Pascal Piluso and Jose Monerris and Michel Breton and Gerald Fritz and Tuomo Sev{\'o}n and Pankakoski, {Pekka H.} and Stefan Holmstr{\"o}m and Jouko Virta",
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Journeau, C, Bonnet, JM, Boccaccio, E, Piluso, P, Monerris, J, Breton, M, Fritz, G, Sevón, T, Pankakoski, PH, Holmström, S & Virta, J 2010, 'European experiments on 2-D molten core concrete interaction: HECLA and VULCANO', Nuclear Technology, vol. 170, no. 1, pp. 189-200. https://doi.org/10.13182/NT10-A9457

European experiments on 2-D molten core concrete interaction : HECLA and VULCANO. / Journeau, Christophe; Bonnet, Jean Michel; Boccaccio, Eric; Piluso, Pascal; Monerris, Jose; Breton, Michel; Fritz, Gerald; Sevón, Tuomo; Pankakoski, Pekka H.; Holmström, Stefan; Virta, Jouko.

In: Nuclear Technology, Vol. 170, No. 1, 2010, p. 189-200.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - European experiments on 2-D molten core concrete interaction

T2 - HECLA and VULCANO

AU - Journeau, Christophe

AU - Bonnet, Jean Michel

AU - Boccaccio, Eric

AU - Piluso, Pascal

AU - Monerris, Jose

AU - Breton, Michel

AU - Fritz, Gerald

AU - Sevón, Tuomo

AU - Pankakoski, Pekka H.

AU - Holmström, Stefan

AU - Virta, Jouko

N1 - Project code: 32688

PY - 2010

Y1 - 2010

N2 - This paper presents results from two ongoing European experimental programs on molten core concrete interactions: HECLA at VTT and VULCANO at the Commissariat à l’Énergie Atomique. In the HECLA experiments, metallic melt is poured into a cylindrical concrete crucible. The focus is on the initial, pouring phase of the interaction. Therefore, decay heat simulation is not required. The HECLA-2 experiment involved 50 kg of stainless steel at 1700°C and siliceous concrete. The final ablation depths were 25–30 mm in the basemat and ~15 mm in the side wall. The VULCANO VB experiments have been devoted to the study of the interaction of 28 to 45 kg of oxidic corium with silica-rich or limestone-rich concretes. These tests focus on long-term ablation and require the use of induction heating to simulate the decay heat fluxes. Anisotropic ablation between the horizontal and vertical direction has been observed with silica-rich concrete, confirming the CCI tests. A new series of experiments VULCANO VBS has been launched in which there are both oxide and metallic phases in the melt. In these tests, magnetic screening is used so that the induction power is provided almost only to the upper oxidic layer after stratification.

AB - This paper presents results from two ongoing European experimental programs on molten core concrete interactions: HECLA at VTT and VULCANO at the Commissariat à l’Énergie Atomique. In the HECLA experiments, metallic melt is poured into a cylindrical concrete crucible. The focus is on the initial, pouring phase of the interaction. Therefore, decay heat simulation is not required. The HECLA-2 experiment involved 50 kg of stainless steel at 1700°C and siliceous concrete. The final ablation depths were 25–30 mm in the basemat and ~15 mm in the side wall. The VULCANO VB experiments have been devoted to the study of the interaction of 28 to 45 kg of oxidic corium with silica-rich or limestone-rich concretes. These tests focus on long-term ablation and require the use of induction heating to simulate the decay heat fluxes. Anisotropic ablation between the horizontal and vertical direction has been observed with silica-rich concrete, confirming the CCI tests. A new series of experiments VULCANO VBS has been launched in which there are both oxide and metallic phases in the melt. In these tests, magnetic screening is used so that the induction power is provided almost only to the upper oxidic layer after stratification.

KW - corium

KW - concrete

KW - severe accident

U2 - 10.13182/NT10-A9457

DO - 10.13182/NT10-A9457

M3 - Article

VL - 170

SP - 189

EP - 200

JO - Nuclear Technology

JF - Nuclear Technology

SN - 0029-5450

IS - 1

ER -

Journeau C, Bonnet JM, Boccaccio E, Piluso P, Monerris J, Breton M et al. European experiments on 2-D molten core concrete interaction: HECLA and VULCANO. Nuclear Technology. 2010;170(1):189-200. https://doi.org/10.13182/NT10-A9457