Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approach
EDF operates a nuclear power generation fleet made up of 56 reactors. This fleet contains 24 reactors designed as double-walled concrete containment building. The inner concrete containment vessel has no metallic liner and is a prestressed reinforced concrete building. The inner concrete containment...
Saved in:
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Czech Technical University in Prague
2022-03-01
|
| Series: | Acta Polytechnica CTU Proceedings |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8005 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849415065359351808 |
|---|---|
| author | Laurent Charpin Jessica Haelewyn Anass Cherki El Idrissi Julien Niepceron Benoît Masson Charles Toulemonde Guillaume Boulant Jean-Philippe Mathieu François Hamon Sylvie Michel-Ponnelle Jean-Marie Hénault Frédéric Taillade Jean-Luc Adia Florian Escoffier |
| author_facet | Laurent Charpin Jessica Haelewyn Anass Cherki El Idrissi Julien Niepceron Benoît Masson Charles Toulemonde Guillaume Boulant Jean-Philippe Mathieu François Hamon Sylvie Michel-Ponnelle Jean-Marie Hénault Frédéric Taillade Jean-Luc Adia Florian Escoffier |
| author_sort | Laurent Charpin |
| collection | DOAJ |
| description | EDF operates a nuclear power generation fleet made up of 56 reactors. This fleet contains 24 reactors designed as double-walled concrete containment building. The inner concrete containment vessel has no metallic liner and is a prestressed reinforced concrete building. The inner concrete containment vessel is designed to withstand a severe accident, in terms of mechanical and sealing behaviour. The tightness of the containment is tested every 10 years, by carrying out a pressurization test and by measuring the leak rate. The leak rate is required to be below a regulatory threshold to continue operation of the concrete containment building for the next ten years. Ageing of concrete due to drying, creep and shrinkage leads to increase prestress loss and then leak rate with time. For some containment buildings, the leak rate gets closer to the regulatory threshold with time, so important coating programs are planned to mitigate and limit the leak rate under the regulatory threshold. Therefore, it is very important for EDF to have a concrete containment building leak rate prediction tool. To address this issue, an important research program around a 1/3 scale concrete containment building mock-up called "VERCORS" have been launched at EDF. The mock-up is heavily instrumented, and its materials (concrete, prestressing cables) have been widely characterized and studied. An important numerical effort has also been made to implement structural computations of the mock-up and to capitalize these computations as well as their post-processing (so as to compare automatically with the monitoring data) in what can be called a digital twin of the mock-up. This digital twin is now used to predict the leakage of VERCORS mock-up before yearly pressure test, and also to optimize the repair programs on the real containments. |
| format | Article |
| id | doaj-art-57553c8679e845f4ae0467ffc55b7e4c |
| institution | Kabale University |
| issn | 2336-5382 |
| language | English |
| publishDate | 2022-03-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-57553c8679e845f4ae0467ffc55b7e4c2025-08-20T03:33:38ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822022-03-0133788410.14311/APP.2022.33.00785245Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approachLaurent Charpin0Jessica Haelewyn1Anass Cherki El Idrissi2Julien Niepceron3Benoît Masson4Charles Toulemonde5Guillaume Boulant6Jean-Philippe Mathieu7François Hamon8Sylvie Michel-Ponnelle9Jean-Marie Hénault10Frédéric Taillade11Jean-Luc Adia12Florian Escoffier13EDF R&D MMC, Les Renardières, Avenue des Renardières, 77250 Ecuelles, FranceEDF R&D ERMES, Saclay, 7 Boulevard Gaspard Monge, 91120 Palaiseau, FranceEDF R&D ERMES, Saclay, 7 Boulevard Gaspard Monge, 91120 Palaiseau, FranceEDF DT, 19 rue Pierre Bourdeix, 69000 Lyon, FranceEDF DT, 19 rue Pierre Bourdeix, 69000 Lyon, FranceEDF R&D MMC, Les Renardières, Avenue des Renardières, 77250 Ecuelles, FranceEDF R&D PERICLES, Saclay, 7 Boulevard Gaspard Monge, 91120 Palaiseau, FranceEDF R&D MMC, Les Renardières, Avenue des Renardières, 77250 Ecuelles, FranceEDF R&D ERMES, Saclay, 7 Boulevard Gaspard Monge, 91120 Palaiseau, FranceEDF R&D ERMES, Saclay, 7 Boulevard Gaspard Monge, 91120 Palaiseau, FranceEDF R&D PRISME, Chatou, 6 quai Watier, 78400 Chatou, FranceEDF R&D PRISME, Chatou, 6 quai Watier, 78400 Chatou, FranceEDF R&D MMC, Les Renardières, Avenue des Renardières, 77250 Ecuelles, FranceEDF R&D ERMES, Saclay, 7 Boulevard Gaspard Monge, 91120 Palaiseau, FranceEDF operates a nuclear power generation fleet made up of 56 reactors. This fleet contains 24 reactors designed as double-walled concrete containment building. The inner concrete containment vessel has no metallic liner and is a prestressed reinforced concrete building. The inner concrete containment vessel is designed to withstand a severe accident, in terms of mechanical and sealing behaviour. The tightness of the containment is tested every 10 years, by carrying out a pressurization test and by measuring the leak rate. The leak rate is required to be below a regulatory threshold to continue operation of the concrete containment building for the next ten years. Ageing of concrete due to drying, creep and shrinkage leads to increase prestress loss and then leak rate with time. For some containment buildings, the leak rate gets closer to the regulatory threshold with time, so important coating programs are planned to mitigate and limit the leak rate under the regulatory threshold. Therefore, it is very important for EDF to have a concrete containment building leak rate prediction tool. To address this issue, an important research program around a 1/3 scale concrete containment building mock-up called "VERCORS" have been launched at EDF. The mock-up is heavily instrumented, and its materials (concrete, prestressing cables) have been widely characterized and studied. An important numerical effort has also been made to implement structural computations of the mock-up and to capitalize these computations as well as their post-processing (so as to compare automatically with the monitoring data) in what can be called a digital twin of the mock-up. This digital twin is now used to predict the leakage of VERCORS mock-up before yearly pressure test, and also to optimize the repair programs on the real containments.https://ojs.cvut.cz/ojs/index.php/APP/article/view/8005air leakageconcrete containment buildingcreepdryingshrinkage |
| spellingShingle | Laurent Charpin Jessica Haelewyn Anass Cherki El Idrissi Julien Niepceron Benoît Masson Charles Toulemonde Guillaume Boulant Jean-Philippe Mathieu François Hamon Sylvie Michel-Ponnelle Jean-Marie Hénault Frédéric Taillade Jean-Luc Adia Florian Escoffier Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approach Acta Polytechnica CTU Proceedings air leakage concrete containment building creep drying shrinkage |
| title | Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approach |
| title_full | Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approach |
| title_fullStr | Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approach |
| title_full_unstemmed | Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approach |
| title_short | Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approach |
| title_sort | predicting leakage of the vercors mock up and concrete containment buildings a digital twin approach |
| topic | air leakage concrete containment building creep drying shrinkage |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/8005 |
| work_keys_str_mv | AT laurentcharpin predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT jessicahaelewyn predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT anasscherkielidrissi predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT julienniepceron predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT benoitmasson predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT charlestoulemonde predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT guillaumeboulant predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT jeanphilippemathieu predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT francoishamon predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT sylviemichelponnelle predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT jeanmariehenault predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT frederictaillade predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT jeanlucadia predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach AT florianescoffier predictingleakageofthevercorsmockupandconcretecontainmentbuildingsadigitaltwinapproach |