Wire mesh sensor measurements of a co-current two-phase flow in a spent fuel pool-like rack
Résumé
Increased attention has been paid in the last decade to the Spent Fuel Pools (SFP) accident phenomenology. The DENOPI project conducted by the IRSN is part of this approach with the aim to gain knowledge in the SFP under loss of cooling or loss of coolant accident conditions and to better evaluate the safety margins. Questions are still pending regarding the issues of convective heat transfer under natural circulation due to a loss of cooling. For instance, the validation of computer codes for accident analysis in case of a natural circulation flow in a fuel assembly with boiling at atmospheric pressure requires additional experimental data. In that view, the MEDEA facility has been set up to study, inter alia, a co-current air/water flow in a SFP-like rack with a one meter height rod bundle. The pressure loss and void fraction are measured all along the fuel bundle using several pressure transducers. Besides, the void fraction and the bubble distribution at the outlet of the pool rack are obtained by means of a Wire Mesh Sensor (WMS).
Origine | Fichiers produits par l'(les) auteur(s) |
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Licence |
Domaine public
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