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MITHYGENE-ETSON hydrogen deflagration benchmark kickoff meeting, Orleans, France, 21/03/2017

Within the French project MITHYGENE active from 2013, with ETSON members joined, an experimental device ENACCEF2 was designed and built that offers unique opportunities to study the acceleration, deceleration and choking of flames. Some hydrogen combustion experiments carried out within the project will be used as combustion benchmark for a comparative study of computational codes used in safety analyses of hydrogen combustion in the containments of nuclear power plants. ETSON is the European Association of authorized experts for nuclear (and radiation) safety. Within the association several working groups and committees are operating.

At the initial meeting the cooperating partners dealt with the details of planned experiments, one of which will be open and the results of two experiments will be available after delivered results of simulations, and experimental devices ENACCEF2 itself, which was also visited. Participating partners presented computational codes, which they intend to use. The timeframes of a comparative study were also presented, in which the calculations of open experiments with the before known experimental results will be followed by the blind tests calculations without experimental results. Next meeting, at which calculations and comparison of the results of the first phase will be presented, is scheduled for the end of May or beginning of June 2017.

Kickoff meeting for MITHYGENE-ETSON combustion benchmark, which was in collaboration with the IRSN hosted at ICARE from the CNRS, took place in Orleans, on the March 21st 2017. Tadej Holler from the "Jožef Stefan" Institute’s Reactor Engineering Division attended the meeting.

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