Modeling of PANDA isolation condenser experiments with MELCOR and Apros

Tuomo Sevón; Seppo Hillberg

doi:10.1016/j.anucene.2019.107014

Modeling of PANDA isolation condenser experiments with MELCOR and Apros

Tuomo Sevón (Corresponding Author), Seppo Hillberg

Research output: Contribution to journal › Article

Abstract

Modeling methods were developed for passive cooling systems, in which steam condenses in vertical tubes. Isolation condenser experiments performed in the PANDA facility were calculated with two computer codes: the severe accident code MELCOR, and the process simulation software Apros. Both pure steam tests and tests with steam–non-condensable gas mixtures were calculated. Recommendations are given for MELCOR users regarding an appropriate nodalization, flow path definition, and heat transfer parameters. With proper model parameters and nodalization, both MELCOR and Apros codes are able to calculate the operation of the passive cooling system well.

Original language	English
Article number	107014
Journal	Annals of Nuclear Energy
Volume	136
DOIs	https://doi.org/10.1016/j.anucene.2019.107014
Publication status	Published - Feb 2020
MoE publication type	A1 Journal article-refereed

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Keywords

Apros
Condensation
MELCOR
Passive nuclear safety

Cite this

Sevón, T., & Hillberg, S. (2020). Modeling of PANDA isolation condenser experiments with MELCOR and Apros. Annals of Nuclear Energy, 136, [107014]. https://doi.org/10.1016/j.anucene.2019.107014

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10.1016/j.anucene.2019.107014

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