The present study aims at modelling the pressure drop of flows across growing cakes of compressible, fibrous materials which may form on the upstream side of containment sump strainers after a loss-of-coolant accident (LOCA). The model developed is based on the coupled solution of a differential equation for the change of the pressure drop in terms of superficial liquid velocity and local porosity of the fibre cake and a material equation that accounts for the compaction pressure dependent cake porosity. Details of its implementation into a general-purpose three-dimensional computational fluid dynamics code (CFD) are given. An extension to this basic model is presented, which simulates the time dependent clogging of the fibre cake due to capturing of suspended particles as they pass trough the cake. The extended model relies on empirical relations which model the change of pressure drop and removal efficiency in terms of particle deposit in the fibre cake.
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17th International Conference on Nuclear Engineering
July 12–16, 2009
Brussels, Belgium
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4352-9
PROCEEDINGS PAPER
Implementation of a Pressure Drop Model for the CFD Simulation of Clogged Containment Sump Strainers
Alexander Grahn,
Alexander Grahn
Forschungszentrum Dresden-Rossendorf e. V., Dresden, Germany
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Eckhard Krepper,
Eckhard Krepper
Forschungszentrum Dresden-Rossendorf e. V., Dresden, Germany
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Frank-Peter Weiß,
Frank-Peter Weiß
Forschungszentrum Dresden-Rossendorf e.V., Dresden, Germany
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So¨ren Alt,
So¨ren Alt
Hochschule Zittau-Go¨rlitz, University of Applied Sciences, Zittau, Germany
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Wolfgang Ka¨stner,
Wolfgang Ka¨stner
Hochschule Zittau-Go¨rlitz, University of Applied Sciences, Zittau, Germany
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Alexander Kratzsch,
Alexander Kratzsch
Hochschule Zittau-Go¨rlitz, University of Applied Sciences, Zittau, Germany
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Rainer Hampel
Rainer Hampel
Hochschule Zittau-Go¨rlitz, University of Applied Sciences, Zittau, Germany
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Alexander Grahn
Forschungszentrum Dresden-Rossendorf e. V., Dresden, Germany
Eckhard Krepper
Forschungszentrum Dresden-Rossendorf e. V., Dresden, Germany
Frank-Peter Weiß
Forschungszentrum Dresden-Rossendorf e.V., Dresden, Germany
So¨ren Alt
Hochschule Zittau-Go¨rlitz, University of Applied Sciences, Zittau, Germany
Wolfgang Ka¨stner
Hochschule Zittau-Go¨rlitz, University of Applied Sciences, Zittau, Germany
Alexander Kratzsch
Hochschule Zittau-Go¨rlitz, University of Applied Sciences, Zittau, Germany
Rainer Hampel
Hochschule Zittau-Go¨rlitz, University of Applied Sciences, Zittau, Germany
Paper No:
ICONE17-75249, pp. 427-438; 12 pages
Published Online:
February 25, 2010
Citation
Grahn, A, Krepper, E, Weiß, F, Alt, S, Ka¨stner, W, Kratzsch, A, & Hampel, R. "Implementation of a Pressure Drop Model for the CFD Simulation of Clogged Containment Sump Strainers." Proceedings of the 17th International Conference on Nuclear Engineering. Volume 2: Structural Integrity; Safety and Security; Advanced Applications of Nuclear Technology; Balance of Plant for Nuclear Applications. Brussels, Belgium. July 12–16, 2009. pp. 427-438. ASME. https://doi.org/10.1115/ICONE17-75249
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