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4.9 The Physical Model of Lean Suppression Pressure Oscillation Phenomena: Steam Condensation in the Light Water Reactor Pressure Suppression System

DOI: 10.1615/ICHMT.1982.AdvCourHeatTransfNucReactSaf.450
pages 699-711

Eckhardt Aust
GKSS-Forschungszentrum Geesthacht GmbH, Institut für Anlagentechnik, Postfach 1160, D-2054 Geesthacht, FRG

Henning Schwan
GKSS-Forschungszentrum Geesthacht GMBH, Institut für Anlagentechnik, D-2054 Geesthacht, West Germany

Jurgen Vollbrandt
GKSS-Forschungszentrum Geesthacht GmbH, Institut für Anlagentechnik, Postfach 1160, D-2054 Geesthacht, FRG

Edward W. McCauley
Lawrence Livermore Laboratory, Livermore, California, USA

Garry S. Holman
Lawrence Livermore Laboratory, Livermore, California, USA


Using the results of large scale multivent tests conducted by GKSS, we have developed a physical model of chugging. The unique combination of accurate digital data and cinematic data has allowed us to obtain detailed, quantified correlation between the dynamic physical variables and the associated two-phase thermo-hydraulic phenomena occurring during lean suppression (chugging) phases of the loss-of-coolant accident in a boiling water reactor pressure suppression system.

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