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[en] A diagram presents the whole of the works that will be made on the French fleet of nuclear reactors. The diagram includes the works necessary for the decenal reviews, the lifetime extension projects, usual reactor maintenance and the post-Fukushima measures. (A.C.)
[en] • Rationale: – INPRO methodology (safety area) requires that “a major release of radioactivity should be prevented for all practical purposes. – Innovative nuclear energy system would not need relocation or evacuation measures outside the plant site. – Satisfying this requirement is crucial for public acceptance and for the sustainability of nuclear energy. • Objective: – Demonstrate that the evolution of safety requirements and related technical and institutional innovations in nuclear technologies provide continued progress to meet the INPRO requirement.
[en] Proposals of Topics for SFR Workshop: • In the 1st WS, the necessity of information exchange by experts on technical issues such as sodium reaction and passive safety was pointed out. It is expected to hold such expert meeting. • For future SFR Workshops which policy makers and experts participate in, the following issues may be suited: – Crosscutting issues on SFR safety; – Instructive Issues for the demonstration of SFR
[en] • Sodium Technology: – Safe and efficient handling and processing of sodium is very important for SFR technology; – Technical sessions would be organized to share current best practices on sodium technology. • Harmonizing Safety Frameworks and Standards: – Safety frameworks and safety design standards are very important for public acceptance and have a major influence on design criteria for SFRs; – Technical sessions would be organized to explore national approaches with a view toward harmonization.
[en] CRP-5 Objectives: • Validation of analytical codes and performance models to actual operating conditions of HTGRs, • Independent evaluation of benchmark problems for use in the R&D and safety programmes for the HTR-10, PBMR, GT-MHR and the ASTRA facilities, • Investigation of analytical codes and models associated with the proposed GT-MHR and PBMR-400 gas turbine plants • Investigation of code-to-experiment benchmarks associated with the three shaft gas turbine micro-model (PBMM), and • Demonstration of HTGR safety characteristics.
[en] Safety and Operation Project: Objectives – Analyses and experiments that support safety approaches and validate specific safety features; – Development of computational tools useful for such studies; – Acquisition of reactor operation technology, as determined largely from experience and testing in operating SFR plants.
[en] During the last two days, we had the third GIF-IAEA Workshop on safety of sodium-cooled fast reactors (SFR). This time, we've had intensive discussion on the safety design criteria. I hope the safety criteria of GIF would be developed into the criteria of the IAEA and be applied internationally in the future.
[en] The work presents the determination of the thermodynamic potential of oxygen in sodium deoxidized by chromium by means of the EMF-method using a solid oxide electrolyte based on hafnium dioxide stabilized with gadolinium oxide in the temperature range from 300 to 500 ° C. The errors of a separate measurement of the EMF, the errors of the equation coefficients and the comparison of the obtained data with the references are given
[ru]В работе приведено определение термодинамического потенциала кислорода в натрии, раскисленного хромом, методом ЭДС с использованием твердого оксидного электролита на основе диоксида гафния, стабилизированного оксидом гадолиния в интервале температур от 300 до 500 ° C. Приведены погрешности отдельного измерения ЭДС, погрешности коэффициентов уравнения и сравнение полученных данных с литературными
[en] Global status for SMR development and deployment: • 12 states are developing some 45 SMR designs with different time scales of deployment and 14 units are under construction. • Most embarking countries well understood SMR benefits and acknowledged SMRs as a viable option for future nuclear energy. • The diversity of SMR designs is overwhelming and participants expressed special interest in modular and integral PWR plants. • There is no differences on licensing process and basic safety requirements between SMRs and large NPP in most countries. • Some countries are applying pre-application review process by interaction with vendors to reduce licensing risk.
[en] Conclusion: • There has been extensive progress made within the GIF GFR « Conceptual Design and Safety » Project, with a focus on safety aspects. • GFR fuel development is critical for this reactor system; results of R&D have been exchanged on a voluntary basis, since there is no Fuel Project signed yet. • R&D efforts in Europe have been slowed down, priority being given to SFR. • Nevertheless a new initiative (ALLEGRO demonstrator) has been launched recently. • Two papers on the GFR system and GFR fuel development will be presented next week at FR13.