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2021 | OriginalPaper | Buchkapitel

Double Wall Containment Building Leak-Tightness Prediction: Strategy and Application

verfasst von : Laurent Charpin, Charles Toulemonde, Jean-Luc Adia, Florian Escoffier, Sylvie Michel-Ponnelle, Guillaume Boulant, Benoît Masson, Julien Niepceron

Erschienen in: International RILEM Conference on Early-Age and Long-Term Cracking in RC Structures

Verlag: Springer International Publishing

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Abstract

EDF operates a fleet of 56 nuclear reactors. For 24 of these reactors, the concrete containment building is a double wall structure. The inner wall is prestressed and has no metallic liner. Every ten years, the leak-tightness of the inner wall is verified by performing a pressure test. The leakage rate has to remain below a given threshold. As time passes, the leakage rate is getting closer to this threshold, so important coating programs are underway to keep the leakage rate within the regulatory limits. Therefore, it is important for EDF to be able to forecast the evolution of leakage, which depends on the concrete saturation and the level of prestress. The prestress decrease is related to creep and shrinkage of concrete and tendons relaxation (this last factor is considered negligible at ambient temperature). To tackle this issue, EDF has launched an important research program around the VERCORS mock-up, which is a containment building at scale 1/3 and has used this research program to improve its ability to predict the evolution of leak-tightness with time. In this paper, the different tools of the digital twin are presented, as well as an example of the use of the models originally developed on the VERCORS mock-up to help the choice of coating strategy for the third pressure test of an industrial containment building.

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Fußnoten
1
The numerical values are not given for confidentiality reasons.
 
2
The numerical values are not given for confidentiality reasons.
 
Literatur
1.
Zurück zum Zitat Corbin, M., Garcia, M.: International benchmark VERCORS 2015—overview, synthesis and lessons learned. EDF, SEPTEN (2015) Corbin, M., Garcia, M.: International benchmark VERCORS 2015—overview, synthesis and lessons learned. EDF, SEPTEN (2015)
2.
Zurück zum Zitat Charpin, L., Niepceron, J., Corbin, M., Masson, B., Mathieu, J.-P., Haelewyn, J., Hamon, F., Ahs, M., Aparicio, S., Asali, M., Azenha, M., Bouhjiti, D., Calonius, K., Chu, M., Herman, N., Huang, X., Jimenez, S., Mazars, J., Nahas, G., Stepan, J., Thénint, T., Torrenti, J.-M.: Ageing and Air Leakage Assessment of a nuclear reactor containment mock-up: VERCORS 2nd. Submitted to Nuclear Engineering and Design (2021) Charpin, L., Niepceron, J., Corbin, M., Masson, B., Mathieu, J.-P., Haelewyn, J., Hamon, F., Ahs, M., Aparicio, S., Asali, M., Azenha, M., Bouhjiti, D., Calonius, K., Chu, M., Herman, N., Huang, X., Jimenez, S., Mazars, J., Nahas, G., Stepan, J., Thénint, T., Torrenti, J.-M.: Ageing and Air Leakage Assessment of a nuclear reactor containment mock-up: VERCORS 2nd. Submitted to Nuclear Engineering and Design (2021)
3.
Zurück zum Zitat Mathieu, J.-P., Charpin, L., Sémété, P., Toulemonde, C., Boulant, G., Haelewyn, J., Hamon, F., Michel-Ponnelle, S., Hénault, J.-M., Taillade, F.: Temperature and Humidity-Driven Ageing of the VeRCoRs Mock-Up. Euro-C, Austria (2018) Mathieu, J.-P., Charpin, L., Sémété, P., Toulemonde, C., Boulant, G., Haelewyn, J., Hamon, F., Michel-Ponnelle, S., Hénault, J.-M., Taillade, F.: Temperature and Humidity-Driven Ageing of the VeRCoRs Mock-Up. Euro-C, Austria (2018)
4.
Zurück zum Zitat Charpin, L., Haelewyn, J., Cherki El Idrissi, A., Niepceron, J., Masson, B., Toulemonde, C., Boulant, G., Mathieu, J.-P., Hamon, F., Michel-Ponnelle, S., Henault, J.-M., Taillade, F., Adia, J.-L., Escoffier, F.: Predicting Leakage of the VERCORS Mock-up and Concrete Containment Buildings: A Digital Twin Approach. Submitted to ICCS20–21, Prague (2021) Charpin, L., Haelewyn, J., Cherki El Idrissi, A., Niepceron, J., Masson, B., Toulemonde, C., Boulant, G., Mathieu, J.-P., Hamon, F., Michel-Ponnelle, S., Henault, J.-M., Taillade, F., Adia, J.-L., Escoffier, F.: Predicting Leakage of the VERCORS Mock-up and Concrete Containment Buildings: A Digital Twin Approach. Submitted to ICCS20–21, Prague (2021)
5.
Zurück zum Zitat Haelewyn, J., Semete, P., Mathieu, J.-P., Escoffier, F., Michel-Ponnelle, S., Hamon, F., Buchoud, E.: A numerical clone for VeRCoRs mock-up. 23ème Congrès Français de Mécanique. Lille, France (2017) Haelewyn, J., Semete, P., Mathieu, J.-P., Escoffier, F., Michel-Ponnelle, S., Hamon, F., Buchoud, E.: A numerical clone for VeRCoRs mock-up. 23ème Congrès Français de Mécanique. Lille, France (2017)
6.
Zurück zum Zitat Charpin, L., Courtois, A., Taillade, F., Martin, B., Masson, B., Haelewyn, J.: Calibration of Mensi/Granger Constitutive Law: Evidences of Ill-Posedness and Practical Application to VeRCoRs Concrete TINCE 2018. Paris-Saclay, France (2018) Charpin, L., Courtois, A., Taillade, F., Martin, B., Masson, B., Haelewyn, J.: Calibration of Mensi/Granger Constitutive Law: Evidences of Ill-Posedness and Practical Application to VeRCoRs Concrete TINCE 2018. Paris-Saclay, France (2018)
Metadaten
Titel
Double Wall Containment Building Leak-Tightness Prediction: Strategy and Application
verfasst von
Laurent Charpin
Charles Toulemonde
Jean-Luc Adia
Florian Escoffier
Sylvie Michel-Ponnelle
Guillaume Boulant
Benoît Masson
Julien Niepceron
Copyright-Jahr
2021
DOI
https://doi.org/10.1007/978-3-030-72921-9_19