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CFD Recombiner Modelling and Validation on the H2-Par and Kali-H2 Experiments
Joint Authors
Ouraou, Mehdi
Mechitoua, Namane
Mimouni, Stéphane
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-09-12
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
A large amount of Hydrogen gas is expected to be released within the dry containment of a pressurized water reactor (PWR), shortly after the hypothetical beginning of a severe accident leading to the melting of the core.
According to local gas concentrations, the gaseous mixture of hydrogen, air and steam can reach the flammability limit, threatening the containment integrity.
In order to prevent mechanical loads resulting from a possible conflagration of the gas mixture, French and German reactor containments are equipped with passive autocatalytic recombiners (PARs) which preventively oxidize hydrogen for concentrations lower than that of the flammability limit.
The objective of the paper is to present numerical assessments of the recombiner models implemented in CFD solvers NEPTUNE_CFD and Code_Saturne.
Under the EDF/EPRI agreement, CEA has been committed to perform 42 tests of PARs.
The experimental program named KALI-H2, consists checking the performance and behaviour of PAR.
Unrealistic values for the gas temperature are calculated if the conjugate heat transfer and the wall steam condensation are not taken into account.
The combined effects of these models give a good agreement between computational results and experimental data.
American Psychological Association (APA)
Mimouni, Stéphane& Mechitoua, Namane& Ouraou, Mehdi. 2011. CFD Recombiner Modelling and Validation on the H2-Par and Kali-H2 Experiments. Science and Technology of Nuclear Installations،Vol. 2011, no. 2011, pp.1-13.
https://search.emarefa.net/detail/BIM-481958
Modern Language Association (MLA)
Mimouni, Stéphane…[et al.]. CFD Recombiner Modelling and Validation on the H2-Par and Kali-H2 Experiments. Science and Technology of Nuclear Installations No. 2011 (2011), pp.1-13.
https://search.emarefa.net/detail/BIM-481958
American Medical Association (AMA)
Mimouni, Stéphane& Mechitoua, Namane& Ouraou, Mehdi. CFD Recombiner Modelling and Validation on the H2-Par and Kali-H2 Experiments. Science and Technology of Nuclear Installations. 2011. Vol. 2011, no. 2011, pp.1-13.
https://search.emarefa.net/detail/BIM-481958
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-481958