Challenge for the validation of high-fidelity multi-physics LWR modeling and simulation: Development of new experiments in research reactors
Current approaches to validate multi-physics coupling mainly rely upon experimental data from the operation of the current reactor fleet. These data allow global experimental validation based on Light Water Reactor (LWR) macroscopic physical parameters of interest. However, they are insufficient for...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1110979/full |
| _version_ | 1797942886913802240 |
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| author | Claire Vaglio-Gaudard Christophe Destouches Ayman Hawari Maria Avramova Kostadin Ivanov Timothy Valentine Patrick Blaise Jean-Pascal Hudelot |
| author_facet | Claire Vaglio-Gaudard Christophe Destouches Ayman Hawari Maria Avramova Kostadin Ivanov Timothy Valentine Patrick Blaise Jean-Pascal Hudelot |
| author_sort | Claire Vaglio-Gaudard |
| collection | DOAJ |
| description | Current approaches to validate multi-physics coupling mainly rely upon experimental data from the operation of the current reactor fleet. These data allow global experimental validation based on Light Water Reactor (LWR) macroscopic physical parameters of interest. However, they are insufficient for validating detailed coupling at the assembly and pin level. The use of well-controlled experimental data provided by research reactors is essential to implement a rigorous and consistent step-wise validation process of high-fidelity multi-physics coupling. That is why experimental data, such as the core power evolution in a transient-state coming from the SPERT-III experimental program and the CABRI research reactor, are analyzed as a first step towards this objective for the simulation of LWR transients initiated by reactivity insertion. The analysis of the state-of-the-art shows no existing experimental benchmark available worldwide for LWRs to consistently and rigorously validate advanced reactor physics/thermal-hydraulics/fuel performance coupling at the pin- or sub-channel scale. In this context, a discussion is therefore initiated in this paper on the perspective of developing new experiments dedicated to high-fidelity multi-physics tools, focusing on a first application: the validation of reactivity feedback effects. Very few existing light-water experimental reactors containing UO2 fuel could today have the capacity to host these experiments. The development of a new validation experiment could only be achievable by considering a two-stage process for the experiment realization: a first stage involving a distributed network of sensors in the reactor core using instrumentation commonly used in research reactors, and a second stage implementing an instrumented fuel pin and innovative experimental techniques, in the longer term. Even if the OECD/NEA activities in the Expert Group on Multi-Physics Experimental Data, Benchmarks and Validation (EGMPEBV) (currently merged in the Expert Group on Multi-Physics of Reactor Systems – EGMUP) have started to pave the way for the development of such a high-fidelity multi-physics experiment, most of the work is still ahead of us. |
| first_indexed | 2024-04-10T20:14:38Z |
| format | Article |
| id | doaj.art-8967150f88814ff1b44c3ff7d3d1d85d |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-10T20:14:38Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Energy Research |
| spelling | doaj.art-8967150f88814ff1b44c3ff7d3d1d85d2023-01-26T06:43:02ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2023-01-011110.3389/fenrg.2023.11109791110979Challenge for the validation of high-fidelity multi-physics LWR modeling and simulation: Development of new experiments in research reactorsClaire Vaglio-Gaudard0Christophe Destouches1Ayman Hawari2Maria Avramova3Kostadin Ivanov4Timothy Valentine5Patrick Blaise6Jean-Pascal Hudelot7CEA, DES, IRESNE, DER, Cadarache, Saint-Paul-lès-Durance, FranceCEA, DES, IRESNE, DER, Cadarache, Saint-Paul-lès-Durance, FranceNorth Carolina State University, Burlington Engineering Lab, Raleigh, NC, United StatesNorth Carolina State University, Burlington Engineering Lab, Raleigh, NC, United StatesNorth Carolina State University, Burlington Engineering Lab, Raleigh, NC, United StatesOak Ridge National Laboratory, Oak Ridge, TN, United StatesCEA, DES, DSE, Saclay, Gif-sur-Yvette, FranceCEA, DAM/DPN, Cadarache, Saint-Paul-lès-Durance, FranceCurrent approaches to validate multi-physics coupling mainly rely upon experimental data from the operation of the current reactor fleet. These data allow global experimental validation based on Light Water Reactor (LWR) macroscopic physical parameters of interest. However, they are insufficient for validating detailed coupling at the assembly and pin level. The use of well-controlled experimental data provided by research reactors is essential to implement a rigorous and consistent step-wise validation process of high-fidelity multi-physics coupling. That is why experimental data, such as the core power evolution in a transient-state coming from the SPERT-III experimental program and the CABRI research reactor, are analyzed as a first step towards this objective for the simulation of LWR transients initiated by reactivity insertion. The analysis of the state-of-the-art shows no existing experimental benchmark available worldwide for LWRs to consistently and rigorously validate advanced reactor physics/thermal-hydraulics/fuel performance coupling at the pin- or sub-channel scale. In this context, a discussion is therefore initiated in this paper on the perspective of developing new experiments dedicated to high-fidelity multi-physics tools, focusing on a first application: the validation of reactivity feedback effects. Very few existing light-water experimental reactors containing UO2 fuel could today have the capacity to host these experiments. The development of a new validation experiment could only be achievable by considering a two-stage process for the experiment realization: a first stage involving a distributed network of sensors in the reactor core using instrumentation commonly used in research reactors, and a second stage implementing an instrumented fuel pin and innovative experimental techniques, in the longer term. Even if the OECD/NEA activities in the Expert Group on Multi-Physics Experimental Data, Benchmarks and Validation (EGMPEBV) (currently merged in the Expert Group on Multi-Physics of Reactor Systems – EGMUP) have started to pave the way for the development of such a high-fidelity multi-physics experiment, most of the work is still ahead of us.https://www.frontiersin.org/articles/10.3389/fenrg.2023.1110979/fullmulti-physicshigh-fidelitycouplingvalidationexperimentresearch reactors |
| spellingShingle | Claire Vaglio-Gaudard Christophe Destouches Ayman Hawari Maria Avramova Kostadin Ivanov Timothy Valentine Patrick Blaise Jean-Pascal Hudelot Challenge for the validation of high-fidelity multi-physics LWR modeling and simulation: Development of new experiments in research reactors Frontiers in Energy Research multi-physics high-fidelity coupling validation experiment research reactors |
| title | Challenge for the validation of high-fidelity multi-physics LWR modeling and simulation: Development of new experiments in research reactors |
| title_full | Challenge for the validation of high-fidelity multi-physics LWR modeling and simulation: Development of new experiments in research reactors |
| title_fullStr | Challenge for the validation of high-fidelity multi-physics LWR modeling and simulation: Development of new experiments in research reactors |
| title_full_unstemmed | Challenge for the validation of high-fidelity multi-physics LWR modeling and simulation: Development of new experiments in research reactors |
| title_short | Challenge for the validation of high-fidelity multi-physics LWR modeling and simulation: Development of new experiments in research reactors |
| title_sort | challenge for the validation of high fidelity multi physics lwr modeling and simulation development of new experiments in research reactors |
| topic | multi-physics high-fidelity coupling validation experiment research reactors |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1110979/full |
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