TY - CHAP
T1 - CFD-modelling of insulation debris transport phenomena in water flow
AU - Krepper, Eckhard
AU - Cartland-Glover, Gregory
AU - Grahn, Alexander
AU - Weiß, Frank-Peter
AU - Alt, Sören
AU - Hampel, Rainer
AU - Kästner, Wolfgang
AU - Seeliger, Andrè
PY - 2007/5/22
Y1 - 2007/5/22
N2 - The investigation of insulation debris generation, transport and sedimentation becomes important with regard to reactor safety research for PWR and BWR, when considering the long-term behavior of emergency core cooling systems during all types of loss of coolant accidents (LOCA). The insulation debris released near the break during a LOCA incident consists of a mixture of disparate particle population that varies with size, shape, consistency and other properties. Some fractions of the released insulation debris can be transported into the reactor sump, where it may perturb/impinge on the emergency core cooling systems. Open questions of generic interest are the sedimentation of the insulation debris in a water pool, its possible re-suspension and transport in the sump water flow and the particle load on strainers and corresponding pressure drop. A joint research project on such questions is being performed in cooperation between the University of Applied Sciences Zittau/Görlitz and the Forschungszentrum Dresden-Rossendorf. The project deals with the experimental investigation of particle transport phenomena in coolant flow and the development of CFD models for its description. While the experiments are performed at the University at Zittau/Görlitz, the theoretical modeling efforts are concentrated at Forschungszentrum Dresden-Rossendorf. Whereas the paper Alt et al. is focused on the experiments in the present paper the basic concepts for CFD modeling are described and feasibility studies including the conceptual design of the experiments are presented.
AB - The investigation of insulation debris generation, transport and sedimentation becomes important with regard to reactor safety research for PWR and BWR, when considering the long-term behavior of emergency core cooling systems during all types of loss of coolant accidents (LOCA). The insulation debris released near the break during a LOCA incident consists of a mixture of disparate particle population that varies with size, shape, consistency and other properties. Some fractions of the released insulation debris can be transported into the reactor sump, where it may perturb/impinge on the emergency core cooling systems. Open questions of generic interest are the sedimentation of the insulation debris in a water pool, its possible re-suspension and transport in the sump water flow and the particle load on strainers and corresponding pressure drop. A joint research project on such questions is being performed in cooperation between the University of Applied Sciences Zittau/Görlitz and the Forschungszentrum Dresden-Rossendorf. The project deals with the experimental investigation of particle transport phenomena in coolant flow and the development of CFD models for its description. While the experiments are performed at the University at Zittau/Görlitz, the theoretical modeling efforts are concentrated at Forschungszentrum Dresden-Rossendorf. Whereas the paper Alt et al. is focused on the experiments in the present paper the basic concepts for CFD modeling are described and feasibility studies including the conceptual design of the experiments are presented.
UR - http://www.scopus.com/inward/record.url?scp=44349096940&partnerID=8YFLogxK
UR - http://www.proceedings.com/02557.html
M3 - Other chapter contribution
AN - SCOPUS:44349096940
SN - 0-89448-058-8
SN - 978-1-60560-071-0
VL - 2
SP - 678
EP - 692
BT - 12th International Meeting on Nuclear Reactor Thermal Hydraulics 2007
PB - Curran
T2 - 12th International Topical Meeting on Nuclear Reactor Thermal Hydraulics
Y2 - 30 September 2007 through 4 October 2007
ER -