Modelling the resuspensions of fibres in the racetrack channel

G. Cartland Glover

Modelling the resuspensions of fibres in the racetrack channel

G. Cartland Glover

Research output: Contribution to conference › Other

Abstract

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.

Original language	English
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

Conference	Fachkolloquium zum BMWi-Vorhaben 150 1363 "Isolationsmaterialbelastete Kühlmittelströmung"
Country	Germany
City	Dresden/Zittau
Period	3/03/10 → 4/03/10

Bibliographical note

Presentation at a results dissemination seminar

Keywords

fibre agglomerates
CFD
racetrack channel

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title = "Modelling the resuspensions of fibres in the racetrack channel",

abstract = "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.",

keywords = "fibre agglomerates, CFD, racetrack channel",

author = "{Cartland Glover}, G.",

note = "Presentation at a results dissemination seminar; Fachkolloquium zum BMWi-Vorhaben 150 1363 {"}Isolationsmaterialbelastete K{\"u}hlmittelstr{\"o}mung{"} ; Conference date: 03-03-2010 Through 04-03-2010",

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TY - CONF

T1 - Modelling the resuspensions of fibres in the racetrack channel

AU - Cartland Glover, G.

N1 - Presentation at a results dissemination seminar

PY - 2010/3/3

Y1 - 2010/3/3

N2 - 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.

AB - 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.

KW - fibre agglomerates

KW - CFD

KW - racetrack channel

M3 - Other

T2 - Fachkolloquium zum BMWi-Vorhaben 150 1363 "Isolationsmaterialbelastete Kühlmittelströmung"

Y2 - 3 March 2010 through 4 March 2010

ER -