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  • Testing and Simulation for Advanced Technology and Accident Tolerant Fuels (ATF-TS)

    Closed for proposals

    Project Type

    Coordinated Research Project

    Project Code

    T12032

    CRP

    2236

    Approved Date

    12 December 2019

    Status

    Closed

    Start Date

    6 April 2020

    Expected End Date

    31 December 2024

    Completed Date

    26 May 2025

    Participating Countries

    Argentina
    Belarus
    Belgium
    Brazil
    Bulgaria
    Canada
    China
    Czech Republic
    France
    Germany
    Hungary
    Iran (Islamic Republic of)
    Italy
    Japan
    Poland
    Republic of Korea
    Russian Federation
    Slovakia
    Spain
    United Kingdom of Great Britain and Northern Ireland
    United States of America

    Description

    The proposed CRP will support interested IAEA Member States in their efforts to design and develop Accident Tolerant and Advanced Technology Fuels (ATF) for light water reactors (LWRs) to enhance the safety and sustainability of nuclear power. The design, fabrication and in-pile behaviour of currently operated and innovative nuclear fuels and materials to enable a reliable and safe operation of nuclear power plants is a recurrent priority of IAEA’s sub-programme "Nuclear Power Reactor Fuel Engineering". Development and validation of computer codes for fuel design and in-pile behaviour analysis under normal and off-normal conditions (including Design Extension Conditions, DEC) are possible only if high-quality experimental data are made available. That is why international cooperation in this area is highly desirable, and in particular among IAEA Member States interested in enhancing their computer code capabilities to predict nuclear fuel behaviour under Design Basis (DB) and Design Extension (DE) Conditions.
    The CRP will bring together specialists from IAEA MSs with active ATF R&D programmes to share their national efforts and to?contribute in any of the following objectives of the CRP:
    Round Robin tests on different ATF cladding concepts (e.g. coated Zr cladding, FeCrAl, SiC);
    Bundle tests under DB/DEC with ATF materials (e.g. with coated Zry-4 rods under SA and/or LOCA conditions);
    Collection of irradiation tests data;
    Code benchmarking against existing data, relevant for advanced fuel and cladding concepts from other experimental Programmes, as well as new tests data obtained during the CRP;
    LOCA evaluation methodology development for NPP applications including uncertainty and sensitivities studies.

    Objectives

    To support Member States to understand and address factors affecting the design, fabrication and in-pile behaviour of currently operating and innovative nuclear fuels and materials for power reactors, to increase technology readiness for candidate ATF materials.

    Specific objectives

    To perform experimental tests including single rod and bundle tests on ATFs' performance under normal, DB and DE conditions

    To benchmark fuel codes against new test data either obtained during the CRP or from existing data relevant to advanced fuel and cladding concepts from Member States' experimental Programmes.

    To develop LOCA evaluation methodology for ATF performance with a view for NPP applications.

    To perform experimental tests including single rod and bundle tests on ATFs' performance under normal, DB and DE conditions

    To benchmark fuel codes against new test data either obtained during the CRP or from existing data relevant to advanced fuel and cladding concepts from Member States' experimental Programmes.

    To develop LOCA evaluation methodology for ATF performance with a view for NPP applications.

    Impact

    The CRP efficiently supported the participating Member States in their efforts to analyse and better understand the behavior of accident tolerant fuels in both normal operation and accident conditions through producing and sharing experimental data and best practices in application of fuel modelling computer codes.
    A dynamic network of experts has been established to continue to address the technical issues associated with ATF materials and application of fuel performance codes and SA codes to ATFs.

    Relevance

    ? There is a growing interest from MSs in the deployment of ATF fuel materials to enhance the safety and sustainability of nuclear power, but limited number of experimental datasets, fuel behavior codes and published benchmark exercises exist
    ? The CRP enhanced Member States' capabilities in modelling, predicting and improving the understanding of the behaviour of nuclear fuel, in response to Member States' request expressed in Resolution GC(68)/RES/11, Paragraphs B.3.3, B.3.8 , B.6.17 and B.8.10.
    ? It also contributed to the objective of the IAEA Project 1.2.2.001: Nuclear power reactor fuel engineering and performance, to support IAEA Member States to understand and address factors affecting the design, fabrication and in-pile behaviour of currently operated and innovative nuclear fuels and materials for power reactors.

    CRP Publications

    Type

    Conference paper

    Year

    2024

    Description

    Integridad estructural de vainas de combustible ATF; Conference paper submitted to the 50th anual meeting of the spanish nuclear society

    Country/Organization

    UPM-Caminos

    Type

    Conference paper (Joint article with Centre for Energy Research, Budapest, Hungary)

    Year

    2023

    Description

    INNOVATIVE HIGH TEMPERATURE BALLOONING AND BURST TESTS OF CLADDING MATERIALS ; 2023 WATER REACTOR FUEL PERFORMANCE MEETING; Xi'an, China. (Paper No. WRFPM 2023-0002)

    Country/Organization

    Atomic Energy Organization of Iran (AEOI)

    Type

    Conference proceedings

    Year

    2024

    Description

    J. Zhang and T. Drieu, "Establishing a LOCA Fuel Safety Evaluation Methodology for Assessment of Advanced Technology Fuel Performance Using FRAPTRAN-TE-1.5", Proc. 14th International Topical Meeting on Nuclear Reactor Thermal-Hydraulics, Operation and Safety (NUTHOS-14), Vancouver, BC, Canada, August 25 – 28, 2024.

    Country/Organization

    Tractebel (Belgium),

    Type

    Conference proceedings

    Year

    2024

    Description

    T. Drieu, G. Vandenwegh, J. Zhang, “Predicting LOCA Fuel Behaviors of Advanced Technology Fuels with Chromium-Coated Cladding Using the FRAPTRAN-TE-1.5 Code,” ENS Transactions of TopFuel 2024, Grenoble, France, 29 September - 3 October 2024

    Country/Organization

    Tractebel (Belgium), UPM (Spain)

    Type

    Journal paper

    Year

    2022

    Description

    Study on the production of Cr-coated Zr-1%Nb tubes as an ATF evolutionary cladding candidate. In this study, an optimized cathodic arc PVD (ARC-PVD) coating condition, from the coating layer homogeneity and defect density point of views, have been obtained. Two coating material (i.e., pure Chromium and Chromium Nitride) with thicknesses up to 10 microns on typical VVER-1000 cladding tubes (Zr-1%Nb alloy) are developed. Presented SEM results approved improvements in coatings visual properties, and further modifications have been postponed until finalizing the performance examinations in normal operational as well as accidental conditions (LB LOCA). Eventually, the general list of planned tests, from characterizations to mechanical and performance viewpoints, which are currently being carried out, is reported.

    Country/Organization

    Atomic Energy Organization of Iran (AEOI)

    Type

    journal article

    Year

    Measurement of Local Mechanical Properties for Cr-Coated Accident Tolernt Fuel Cladding, published on J. of Nuclear Materials 579 (2023) 154407

    Country/Organization

    Korea/KAERI

    Type

    Conference paper ( TOP FUEL)

    Year

    2024

    Description

    CIEMAT’s main outcomes of the LOCA fuel safety evaluation methodology for ATF performance in the IAEA/CRP ATF-TS.

    Country/Organization

    CIEMAT

    Type

    Conference paper

    Year

    2025

    Description

    Ensayos de compresión diametral en vainas de combustible nuclear avanzado cromadas, Conference paper submitted to the 50th anual meeting of the spanish nuclear society

    Country/Organization

    UPM-Caminos

    Type

    Journal publication

    Year

    2024

    Description

    Juri Stuckert, et al., An Overview of Mechanisms of the Degradation of Promising ATF Cladding Materials During Oxidation at High Temperatures, Article in "High Temperature Corrosion of Materials", 2024

    Country/Organization

    KIT (Germany)

    Type

    Proceeding

    Year

    2024

    Publication URL

    https://www.euronuclear.org/topfuel-2024/

    Description

    C.Shin et al., THE SENSITIVITY ANALYSIS AND UNCERTAINTY ANALYSIS FOR ACCIDENT TOLERANT FUEL WITH MERCURY CODE IN IAEA-CRP ATF-TS, Topfuel2024, Grenoble, France, 2024.10 Description: The sensitivity analysis and uncertainty analysis has been carried out for NPP safety analysis with accident tolerant fuel models

    Country/Organization

    Korea Atomic Energy Research Institute

    Type

    conference paper

    Year

    2023

    Description

    Investigation of Thermal Creep properties of Chromium Coated Cladding with MERCURY, published on Trans of the Korean Nuclear Society Spring Meeting, 2023

    Country/Organization

    Korea/KAERI

    Type

    journal article

    Year

    2022

    Description

    Multi-Elemental Coatings on Zirconium Alloy for Corrosion Resistance Improvement, published on Coatings 2022, 12, 1112.

    Country/Organization

    Poland/INCT

    Type

    Journal paper (PNE)

    Year

    2023

    Publication URL

    https://doi.org/10.1016/j.pnucene.2023.104838

    Description

    Modelling FeCrAl cladding thermo-mechanical performance. Part II: Comparative analysis with Zircaloy under LOCA conditions

    Country/Organization

    CIEMAT

    Type

    Conference paper (Top Fuel)

    Year

    2024

    Description

    Hot rod thermo-mechanical assessment of Cr-coated Zircaloy in accident scenarios with FRAPTRAN-TUmech.

    Country/Organization

    CIEMAT

    Type

    Journal paper (PNE)

    Year

    2022

    Publication URL

    https://doi.org/10.1016/j.pnucene.2022.104417

    Description

    Modelling FeCrAl cladding thermo-mechanical performance. Part I: Steady-state conditions

    Country/Organization

    CIEMAT

    Type

    Journal publication

    Year

    2024

    Description

    Juri Stuckert, et al., Post-quench ductility limits of coated ATF with various zirconium-based alloys and coating designs, Article in "Journal of Nuclear Materials", 2024.

    Country/Organization

    KIT (Germany), CTU (Czech Republic), SNU (China)

    Type

    Conference proceedings

    Year

    2024

    Description

    J. Zhang, T. Drieu, K. Sim, A. Khaperskia, “Development of a Fuel Safety Evaluation Methodology for Assessing the Performance of ATFs under Loss-Of-Coolant Accidents,” ENS Transactions of TopFuel 2024, Grenoble, France, 29 September - 3 October 2024

    Country/Organization

    Tractebel (Belgium), IAEA

    Type

    Proceeding

    Year

    2024

    Publication URL

    https://www.euronuclear.org/topfuel-2024/

    Description

    S.Lee et al., CALIBRATION FOR THERMAL CREEP PROPERTIES OF Cr COATED CLADDING WITH MERCURY AND ISIGHT, Topfuel2024, Grenoble, France, 2024.10 Description: Thermal creep coefficients of coated layer from ATF-TS has been derived using MERCURY and ISIGHT and validated against experimental data.

    Country/Organization

    Korea Atomic Energy Research Institute

    Type

    Conference proceedings

    Year

    2024

    Description

    Kinya Nakamura, Kenta Inagaki, Naoki Tarumi, Juri Stuckert, Martin ?evecek, Behaviour of Cr-coated cladding bundles under BDBA conditions at the DEGREE facility, 29th International QUENCH Workshop, Karlsruhe Institute of Technology, Campus North, Germany, 19-21 November 2024. DOI: 10.5445/IR/1000177365.

    Country/Organization

    CRIEPI (Japan), KIT (Germany), CTU (Czech Republic)

    Type

    Conference paper (Top Fuel)

    Year

    2023

    Description

    Progress on modelling the thermo-mechanical performance of accident-tolerant fuels.

    Country/Organization

    CIEMAT

    Type

    Journal paper

    Year

    2024

    Publication URL

    https://doi.org/10.1016/j.nme.2024.101799

    Description

    J. Hong et al., Micro-mechanical evaluations of adhesion properties for Cr-coated accident tolerant fuel cladding, Nuclear Materials and Energy 41 (2024) 101799 Description: Adhesion properties of Cr-coated layer fabricated by CTU in the frame of ATF-TS has been investigated using micro-mechanical tests

    Country/Organization

    Korea Atomic Energy Research Institute

    Type

    Conference proceedings

    Year

    2024

    Description

    Kinya Nakamura, Kenta Inagaki, Juri Stuckert, Martin ?evecek, Behavior of chromium-coated zirconium alloy fuel rods in simulated beyond design basis accident (2) Comparison of single layer Cr and bi-layer Cr/CrN coated Zircaloy-4 fuel bundles, 2024 Fall meeting of Atomic Energy Society of Japan, 3N03, Tohoku University, Japan, 11-13 September 2024.

    Country/Organization

    CRIEPI (Japan), KIT (Germany), CTU (Czech Republic)

    Type

    Proceeding

    Year

    2023

    Publication URL

    https://www.kns.org/

    Description

    J.Oh et al., Effect of fission gas diffusivity of dopant in Cr2O3 doped UO2 pellet, Transactions of the Korean Nuclear Society Spring Meeting, Jeju, Korea, May 18-19, 2023 Description: Fission gas release model of the doped pellet has been developed and implemented based on ATF-TS database.

    Country/Organization

    Korea Atomic Energy Research Institute

    Type

    Conference proceedings

    Year

    2024

    Description

    Z. Hózer, R. Farkas, N. Vér, B. Bürger: CODEX-ATF: Integral Bundle Test With Accident Tolerant Fuel, Proceedings of TOPFUEL 2024, Grenoble, ENS Tolerant Fuel, Proceedings of TOPFUEL 2024, Grenoble, ENS

    Country/Organization

    HUN-REN Centre for Energy Research

    Type

    Conference proceedings

    Year

    2024

    Publication URL

    https://www.euronuclear.org/scientific-resources/conference-proceedings/#1559592…

    Description

    Juri Stuckert, et al., Experimental programme within the IAEA ATF-TS - separate effect and bundle tests with ATF cladding materials, Proceedings of the TopFuel 2024 conference, 2024

    Country/Organization

    KIT (Germany), CTU (Czech Republic), IAEA

    Type

    conference paper

    Year

    2022

    Description

    FRAPTRAN-TE-1.5 Simulation of the Halden LOCA Tests IFA-650.9 and 10: Impact of Model Options and Assumptions, presented at TOPFUEL 2022

    Country/Organization

    Belgium/TRACTEBEL

    Type

    Proceeding

    Year

    2023

    Publication URL

    https://www.kns.org/

    Description

    H.Kim et al., Experiment, modeling and evaluation of ATF in the frame of IAEA CRP ATF-TS, Transactions of the Korean Nuclear Society Autumn Meeting, Gyeongju, Korea, October 26-27, 2023 Description: KAERI’s contribution in the ATF-TS has been introduced.

    Country/Organization

    Korea Atomic Energy Research Institute

    Type

    Conference proceedings

    Year

    2024

    Description

    Juri Stuckert, et al., IAEA ATF-TS benchmark for simulation of bundle tests, Proceedings of the TopFuel 2024 conference, 2024

    Country/Organization

    KIT (Germany), HUN-REN EK, IAEA

    Type

    Conference proceedings

    Year

    2024

    Description

    . Zhang, P. Xu, K. Sim, M. Veshchunov and A. Khaperskaia, “From FUMAC and ACTOF to ATF-TS: Contribution of IAEA CRPs to Advanced Technology Fuel Testing, Modelling and Simulation,” In Proc. Of Top Fuel 2022, October 9–13, 2022, Raleigh, NC, USA, ANS, 2022

    Country/Organization

    Tractebel (Belgium), INL (USA), IAEA

    Type

    Conference proceedings

    Year

    2024

    Description

    J. Zhang, M. ?evecek, K. Sim, A. Khaperskia, “ATF-TS: IAEA Coordinated Research Project on Testing and Simulations for Accident Tolerant and Advanced Technology Fuels,” ENS Transactions of TopFuel 2024, Grenoble, France, 29 September - 3 October 2024

    Country/Organization

    Tractebel (Belgium), CTU (Czech Republic), IAEA

    Type

    Journal paper (NED)

    Year

    2025

    Description

    Modelling FeCrAl cladding thermo-mechanical performance: CIEMAT’s contribution to IAEA/CRP ATF-TS

    Country/Organization

    CIEMAT

    Type

    Conference proceedings

    Year

    2023

    Publication URL

    https://publikationen.bibliothek.kit.edu/1000165938

    Description

    Róbert Farkas, Nóra Vér, Berta Bürger, Péter Szabó, Zoltán Hózer: The CODEX-ATF Experiment, 28th International QUENCH Workshop

    Country/Organization

    HUN-REN Centre for Energy Research

    Type

    Conference proceedings

    Year

    2022

    Description

    J. Zhang, T. Drieu (Tractebel, Belgium), “FRAPTRAN-TE-1.5 Simulation of the Halden LOCA Tests IFA-650.9 and 10: Impact of Model Options and Assumptions,” In ANS Proc. Top Fuel 2022, October 9–13, 2022, Raleigh, NC, USA, ANS, 2022

    Country/Organization

    Tractebel (Belgium)

    Type

    Journal paper

    Year

    2023

    Publication URL

    https://www.sciencedirect.com/science/article/pii/S0022311523001757

    Description

    J. Hong et al., Measurement of local mechanical properties for Cr-coated accident tolerant fuel cladding, Journal of Nuclear Materials 579 (2023) 154407 Description: Micro mechanical properties of Cr-coated layer fabricated by CTU in the frame of ATF-TS has been investigated using micro indentation method.

    Country/Organization

    Korea Atomic Energy Research Institute

    Type

    Proceeding

    Year

    2023

    Publication URL

    https://virtual.oxfordabstracts.com/#/event/public/3997/

    Description

    J. Hong et al., Evaluation of adhesion properties of Cr coated accident tolerant fuel cladding, Materials Today Conference 2023, Aug. 2-5, Singapore. Description: Adhesion properties of Cr-coated layer fabricated by CTU in the frame of ATF-TS has been investigated using micro-cantilever bending tests.

    Country/Organization

    Korea Atomic Energy Research Institute

    Type

    Conference paper

    Year

    2024

    Publication URL

    https://www.euronuclear.org/scientific-resources/conference-proceedings/#1559592…

    Description

    Mechanical behaviour of Cr-coated ATF cladding; Conference paper submitted to the Top-Fuel Conference. European Nuclear Society

    Country/Organization

    UPM-Caminos

    Type

    Scientific Paper

    Year

    2024

    Publication URL

    https://doi.org/10.1016/j.nucengdes.2024.113246

    Description

    R&D in advanced technology fuels (ATFs) in Spain

    Country/Organization

    UPM-Caminos

    Type

    Conference paper ( NuMat 2022)

    Year

    2022

    Description

    Analysis of FeCrAl cladding thermo-mechanical performance under LOCA conditions.

    Country/Organization

    CIEMAT

    Type

    Proceeding

    Year

    2023

    Publication URL

    https://www.kns.org/

    Description

    S.Lee et al., Investigation of thermal creep properties of chromium coated cladding with MERCURY, Transactions of the Korean Nuclear Society Spring Meeting, Jeju, Korea, May 18-19, 2023 Description: Thermal creep properties of Cr-coated layer fabricated by CTU in the frame of ATF-TS has been derived using MERCURY and the properties have been shared with participants.

    Country/Organization

    Korea Atomic Energy Research Institute

    Type

    Proceeding

    Year

    2024

    Description

    H.Kim et al., Sensitivity analysis and uncertainty analysis of IFA-650.9 using MERCURY, EHPG2024, Loen, Norway, 2024. Description: Sensitivity and uncertainty analysis methodology for MERCURY has been developed and SA/UA of IFA-650.9 using MERCURY has been conducted based on ATF-TS data.

    Country/Organization

    Korea Atomic Energy Research Institute

    Type

    Conference proceedings

    Year

    2023

    Description

    Kinya Nakamura, Kenta Inagaki, Juri Stuckert, Martin ?evecek, Behavior of chromium-coated zirconium alloy fuel rods in simulated beyond design basis accident, 2023 Annual meeting of Atomic Energy Society of Japan, 2F15, Tokyo University, Japan, 13-15 March 2023.

    Country/Organization

    CRIEPI (Japan), KIT (Germany), CTU (Czech Republic)

    Type

    Conference proceedings

    Year

    2024

    Description

    Kinya Nakamura, Kenta Inagaki, Naoki Tarumi, Juri Stuckert, Martin ?evecek, BEHAVIOR OF BUNDLES WITH CR COATED CLADDINGS UNDER BDBA CONDITIONS AT THE DEGREE FACILITY, Proc. TOPFUEL 2024, Grenoble, France, 29 September - 3 October 2024

    Country/Organization

    CRIEPI (Japan), KIT (Germany), CTU (Czech Republic)

    Type

    Conference paper

    Year

    2023

    Description

    Hidruración de vainas ATF con recubrimiento de Cr; Conference paper submitted to the 48th anual meeting of the Spanish nuclear society

    Country/Organization

    UPM-Caminos

    Type

    Conference proceedings

    Year

    2024

    Description

    J. Gomez-Magan, C. Queral, J. Sanchez-Torrijos, A. Soler, T. Drieu, J. Zhang, J.M. Posada, “Generation of the Thermal-Hydraulic Boundary Conditions to be Used for a BEPU LBLOCA Fuel Safety Evaluation with Fuel Rod Codes,” ENS Transactions of TopFuel 2024, Grenoble, France, 29 September - 3 October 2024.

    Country/Organization

    Tractebel (Belgium), UPM (Spain)

    Type

    Journal publication

    Year

    2024

    Description

    J. Zhang, P. Xu, M. Sevecek, K. S. Sim, and A. Khaperskaia, “Contribution of IAEA coordinated research projects to light water reactors advanced technology fuel testing and simulation,” Nuclear Engineering and Design, vol. 418, p. 112910, Mar. 2024,

    Country/Organization

    Tractebel (Belgium), CTU (Czech Republic), IAEA

    Type

    Conference proceedings

    Year

    2024

    Publication URL

    https://www.euronuclear.org/scientific-resources/conference-proceedings/#1559592…

    Description

    Juri Stuckert, et al., Behavior of bundles with Cr coated claddings under BDBA conditions at the DEGREE facility, Proceedings of the TopFuel 2024 conference, 2024.

    Country/Organization

    KIT (Germany), CRIEPI, CTU, IAEA

    Type

    conference paper

    Year

    2022

    Description

    From FUMAC and ACTOF to ATF-TS: Contribution of IAEA CRPs to Advanced Technology Fuel Testing, Modelling and Simulation, presented at TOPFUEL 2022.

    Country/Organization

    Belgium/TRACTEBEL

    Type

    Conference proceedings

    Year

    2024

    Description

    Juri Stuckert, et al., Limiting degradation mechanisms for high-temperature oxidation resistance of promising ATF cladding solutions, Proceedings of the TopFuel 2024 conference, 2024.

    Country/Organization

    KIT (Germany),

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