Reference : Modelling of Passive Heat Removal Systems: A Review with Reference to the Framatome B...
Scientific journals : Article
Engineering, computing & technology : Mechanical engineering
Modelling of Passive Heat Removal Systems: A Review with Reference to the Framatome BWR Reactor KERENA: Part II
Manthey, René []
Viereckl, Frances []
Moonesi Shabestary, Amirhosein []
Zhang, Yu []
Ding, Wei []
Lucas, Dirk []
Schuster, Christoph []
Leyer, Stephan mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Hurtado, Antonio []
Hampel, Uwe []
[en] passive heat removal systems ; two-phase flow instabilities ; emergency condensers
[en] Passive safety systems are an important feature of currently designed and constructed
nuclear power plants. They operate independent of external power supply and manual interventions
and are solely driven by thermal gradients and gravitational force. This brings up new needs for
performance and reliably assessment. This paper provides a review on fundamental approaches to
model and analyze the performance of passive heat removal systems exemplified for the passive heat
removal chain of the KERENA boiling water reactor concept developed by Framatome. We discuss
modeling concepts for one-dimensional system codes such as ATHLET, RELAP and TRACE and
furthermore for computational fluid dynamics codes. Part I dealt with numerical and experimental
methods for modeling of condensation inside the emergency condenser and on the containment
cooling condenser. This second part deals with boiling and two-phase flow instabilities.

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