News from ETSON and its members*

15 Mar 2021 | Jacobs | Calculation to experiment comparison for the subchannel (SC) coolant temperature in mixed and forced convection conditions newspicture Graphite programme assures regulator of reactor safety

Graphite bricks are used in the core of all of the UK's Advanced Gas-Cooled Reactors (AGRs). Jacobs is deeply engaged in the programme of work to increase understanding of the cores’ tolerance to damage as they age.

15 Mar 2021 | ENEA | New element and speciation specific analytical options at PSI hot laboratory newspicture Preparing software tools for the ALFRED reactor licensing: the ANTEO+ subchannel code example

In light of the licensing of the ALFRED demonstrator by the Romanian regulator CNCAN, ENEA, as member of the FALCON Consortium, is prepapring the relevant software tools for their qualification. A rigourous approach, based on the guidelines and best practices in place in the European context, has been followed and applied to the validation case of the subchannel code ANTEO+, used in the thermal-hydraulics analyses of the fuel assemblies

15 Mar 2021 | PSI | New element and speciation specific analytical options at PSI hot laboratory newspicture New element and speciation specific analytical options at PSI hot laboratory

Combining IC’s capabilities for speciation analysis and the new ICP-OES for swift and reliable wastewater analysis, the PSI hotlab now offers a comprehensive set-up for routine wastewater examinations providing future autonomy from external contractors for wastewater management.

15 Mar 2021 | Jacobs | Frederic Wheeler, Head of Regulatory Support Directorate, Jacobs newspicture Frederic Wheeler, Head of Regulatory Support Directorate, Jacobs

Frederic Wheeler was appointed as Head of the Regulatory Support Directorate within Jacobs in April 2020.

15 Mar 2021 | ENEA | Uncertainty and Sensitivity analysis of the QUENCH-06 Experiment by means of the ASTEC/RAVEN coupling newspicture Uncertainty and Sensitivity analysis of the QUENCH-06 Experiment by means of the ASTEC/RAVEN coupling

In the framework of the IAEA CRP (I31033) an uncertainty quantification exercise is currently under development based on test-6 of the QUENCH experimental facility and ENEA is participating. The current status of the ENEA activity is here summarized.

15 Mar 2021 | ENEA | Life cycle of chlorine in geochemical environment newspicture Life cycle of chlorine in geochemical environment

Monitoring chlorine cycle in environmental matrices is important to better characterize the reference state and the water cycle for the predisposal planning of radioactive waste. Methods and protocols for 36Cl  analysis in environment have to be tested in order to monitor  the performance of the radioactive waste repository.

15 Mar 2021 | ENEA | Application of Uncertainty Quantification Methods against Integral Experiments (AUQMIE) in the EU-MUSA project newspicture Application of Uncertainty Quantification Methods against Integral Experiments (AUQMIE) in the EU-MUSA project

Currently an uncertainty application exercise against the Phebus FPT1 test is in progress in the MUSA HORIZON 2020 EURATOM project. ENEA is the lead of this uncertainty exercise that it has as a main target to training the project Partners gaining experience for the nuclear power plant and spent fuel pool uncertainty application planned along the project.

09 Mar 2021 | ETSON | Collection of weblinks to content of ETSON members regarding the 10th anniversary of the Fukushima accident news picture Collection of weblinks to content of ETSON members regarding the 10th anniversary of the Fukushima accident

The  Fukushima Daiichi nuclear accident having its 10th anniversary, here is a compilation of content published by the members of ETSON on this occasion.

15 Feb 2021 | Bel V | The SF² project, for a safe interim storage of spent fuel newspicture The SF² project, for a safe interim storage of spent fuel

There is a need for the construction of supplementary interim storage capacity for spent fuel in Belgium, because of the definitive shutdown of the 7 nuclear power plants in the next 4 years.

15 Feb 2021 | Bel V | Bel V participated in the installation of a new experiment in the IRSN Underground Research Laboratory at Tournemire newspicture Bel V participated in the installation of a new experiment in the IRSN Underground Research Laboratory at Tournemire

There is a need for the construction of supplementary interim storage capacity for spent fuel in Belgium, because of the definitive shutdown of the 7 nuclear power plants in the next 4 years

15 Feb 2021 | Bel V | Experimental and numerical assessment of Natural Circulation Interruption phenomena newspicture Experimental and numerical assessment of Natural Circulation Interruption phenomena

In the framework of the OECD/NEA PKL projects [1], Bel V proposed to perform a series of experimental tests connected with the Natural Circulation Interruption (NCI) issue. The objective was to assess the natural circulation interruption phenomena under asymmetric cooldown conditions and its eventual impact on the current operating emergency procedures (EOPs).

15 Feb 2021 | LEI | Research for safety of future fusion power plant DEMO newspicture Research for safety of future fusion power plant DEMO

According to the European Research Roadmap to the Realisation of Fusion Energy the next step after ITER facility is DEMO, the demonstration power plant.

15 Feb 2021 | LEI | Analysis of external events at Ignalina NPP in decommissioning phase newspicture Analysis of external events at Ignalina NPP in decommissioning phase

The Ignalina Nuclear Power Plant (INPP) was operated with two RBMK-1500 reactors for 21 and 22 years respectively. Since 2010, decommissioning has become the major activity at Ignalina NPP.

15 Feb 2021 | LEI | Lithuanian Energy Institute in IAEA’s coordinated research projects newspicture Lithuanian Energy Institute in IAEA’s coordinated research projects

Lithuanian Energy Institute (LEI) is participating actively in IAEA activities by performing six Coordinated Research Projects (CRPs) in different nuclear fields, three of these were initiated in 2020.

15 Feb 2021 | SEC NRS Revision of the Russian regulatory requirements to computer codes used for safety analysis of nuclear facilities

Rostechnadzor is to update regulatory requirements to computer programs used for safety analysis of nuclear installations in 2021.

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