Improvement and verification of steam explosion models and codes for application to accident scenarios in light water reactors [Elektronische Ressource] / vorgelegt von Zoran Vujic

Institut für Kernenergetikund Energiesysteme IKE Improvement and Verification of Steam Explosion Models and Codes for Application to Accident Scenarios in Light Water Reactors Zoran Vujic Dezember 2008 IKE 2-154 Universität Stuttgart Institut für Kernenergetikund Energiesysteme IKE Improvement and Verification of Steam Explosion Models and Codes for Application to Accident Scenarios in Light Water Reactors von der Fakultät Energie-, Verfahrens- und Biotechnik der Universität Stuttgart zur Erlangung der Würde eines Doktor-Ingenieurs (Dr.-Ing.) genehmigte Abhandlung vorgelegt von Zoran Vujic Geboren in Zrenjanin/Serbien Hauptberichter: Prof. G. Lohnert, Ph.D Mitberichter: Prof. Dr.-Ing. Eberhard Göde Tag der Einreichung: 06. Oktober 2008 Tag der mündlichen Prüfung: 22. Dezember 2008 ISSN – 0173 – 6892 Dezember 2008 IKE 2-154 Universität Stuttgart …dedicated to my beloved parents Abstract Steam explosions can occur during an accident with core melting in Light Water Reactors (LWR) as a consequence of the interaction between molten core material with the water inside the Reactor Pressure Vessel (RPV) or, if RPV failure cannot be excluded, due to the release of melt from the RPV into water in the cavity.