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CORDIS

DELISA-LTO: DEscription of the extended LIfetime and its influence on the SAfety operation and construction materials performance – Long Term Operation with no compromises in the safety

Livrables

Report on developing and testing models of RPV internals for swelling evaluation

The report will include the results of developing and testing the RPV internals models for swelling evaluation created for different codes and performing of the benchmark at simple level

Database of the available materials

Description and database of the available materials SG tubes primary pipes from decommissioning NPPs or from material archives of the project partners

State of the art on Thermal Ageing Evaluation

The report will include the results of state of the art on Thermal Ageing Evaluation based on obtaining deep knowledge of thermal ageing effects based on testing results and analytical research and developingmodify thermal ageing predictive models for longterm operation of SSCs

Cutting plans and experimental matrix for structural evaluation

Cutting plans and experimental matrix description of the experimental material which will be cut according to the cutting plan for specific methods into many samples that will be delivered to individual contributors based on the preferences and need of each one

Detailed test matrix for the thermal ageing evaluation experimental program

Detailed test matrix for the thermal ageing evaluation experimental program based on the relevant available SSCs and the capabilities of the participated laboratories Deliverable is the fundamental output of the Task 42 Thermal Ageing

Database of relevant publication to project DELISA-LTO published in the past

In frame of this delivery the database of relevant publications with connection to the DELISALTO subject issued in past will be collected

Critical analysis of the primary circuit components important to LTO safe operation of NPP VVER 440 and VVER 1000

Identification of the critical issues with the primary circuit components based on the operational experience with importance of LTO safe operation of NPP WWER 440 and WWER 1000 and description of the degradation mechanisms for selected components of the available materials

Report on normative approaches, current practice and experience of RPV internals calculations (swelling evaluation) for LTO justification

The report will include the results of the comparison of rulesmaking and practices concerning swelling evaluation and calculation of RPV internals for PWR type reactors The experience and safety requirements in the project developer countries related to RPV internals swelling calculations and evaluation will be explored collected and analyzed

Report summarizing the survey results, containing selected testing and analytical methods and parameters for the experimental program

Report summarizing the survey results containing selected testing and analytical methods and parameters for the subsequent experimental program Deliverable is the fundamental output of the Task 41 Characterization of the relevant specimens and methods

Report on applicability of ultrasonic measurement for the evaluation of phase changes caused by thermal ageing

The report will summarize test results from measurements of ultrasonic signal properties such as speed and attenuation of the ultrasonic signal etc on samples before and after exposure to thermal aging The output will be recommendations for measuring phase changes caused by thermal aging through selected ultrasonic characteristics as a part of InService Inspection Program

Cutting plans and experimental matrix for mechanical testing

The aim of this task is to prepare cutting plans experimental matrix

Project presentation

The first project deliverable will be a project presentation that will contain an overview of the project its objectives work packages consortium members etc The presentation will be presented on the project kickoff meeting

Questionnaire for the survey of laboratory equipment, testing procedures and quality assurance systems

Questionnaire for the survey of laboratory equipment testing procedures and quality assurance systems Necessary for the participants information collection within the Task 41 Characterization of the relevant specimens and methods

"Questionnaire for survey of used guidelines, standards, codes and ""best practices"" connection to the relevant SScs"

The questionnaire should be agreed with all participants and should cover the following topics Safety codes standards guidelines related to the available SSCs relevant for swelling and thermal ageing during LTO expected for 60 years best practice recommendations for swelling and thermal ageing assessment and relevant literature on swelling and thermal ageing of SSCs

Publications

Round Robin Tests for WWER Heat Exchange Tubes

Auteurs: Roman Krajcovic, Michal Benak, Radim Kopriva, Szabolcs Szavai, Csaba Takacs
Publié dans: e-Journal of Nondestructive Testing 28(7), 2023, ISSN 1435-4934
Éditeur: NDE
DOI: 10.58286/28273

Positron Annihilation Study of RPV Steels Radiation Loaded by Hydrogen Ion Implantation

Auteurs: Vladimir Slugen; Tomas Brodziansky; Jana Simeg Veternikova; Stanislav Sojak; Martin Petriska; Robert Hinca; Gabriel Farkas
Publié dans: Materials; Volume 15; Numéro 20; Pages: 7091, 2022, ISSN 1996-1944
Éditeur: MDPI Open Access Publishing
DOI: 10.3390/ma15207091

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