Presentation of the progress made in modelling fibre agglomerate transport in the racetrack channel. Fibre agglomerates can be generated through the disruption of insulation materials during LOCA in NPPs. The fibres can make their way to the containment sump strainers and lead to their blockage. This blockage can lead to an increase in the pressure drop acting across the strainers, which can lead to cavitation behind the strainer and in the recirculation pumps. This will lead to a loss of ECC water reaching the reactor. A small proportion of the fibres may also reach the reactor vessel. Therefore reliable numerical models of the three-dimensional flow behaviour of the fibres must be developed. The racetrack channel offers the chance to validate such models. The presentation describes the techniques involved and the results obtained from transient simulations of the whole channel.
|Publication status||Published - 3 Mar 2010|
|Event||Fachkolloquium zum BMWi-Vorhaben 150 1363 "Isolationsmaterialbelastete Kühlmittelströmung" - Dresden/Zittau, Germany|
Duration: 3 Mar 2010 → 4 Mar 2010
|Conference||Fachkolloquium zum BMWi-Vorhaben 150 1363 "Isolationsmaterialbelastete Kühlmittelströmung"|
|Period||3/03/10 → 4/03/10|
Bibliographical notePresentation at a results dissemination seminar
- fibre agglomerates
- racetrack channel
Cartland Glover, G. (2010). Modelling the resuspensions of fibres in the racetrack channel. Fachkolloquium zum BMWi-Vorhaben 150 1363 "Isolationsmaterialbelastete Kühlmittelströmung", Dresden/Zittau, Germany.