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    Gas entrainment by one single French PWR spray, SARNET-2 spray benchmark

    Tag correlate

    #Impianti termoelettrici #Nucleare

    pubblicazioni - Memoria

    Gas entrainment by one single French PWR spray, SARNET-2 spray benchmark

    Descrizione dei principali risultati del secondo benchmark del progetto europeo SARNET-2 legato all’impiego degli spray d’acqua all’interno del contenimento di un reattore nucleare ad acqua pressurizzata. Confronto tra risultati sperimentali e quelli delle simulazioni numeriche.

    This paper presents a benchmark performed in the frame of the SARNET-2 project, dealing with momentum transfer between a real-scale PWR spray and the surrounding gas. It presents a description of the IRSN tests on the CALIST facility, the participating codes (8 contributions), code-experiment and code-to-code comparisons. It is found that droplet velocities are almost well calculated one meter below the spray nozzle, even if the spread of the spray is not recovered. However, the values of the entrained gas velocity vary up to 100% from one code to another. Concerning sensitivity analysis, several ‘simplifications’ have been made by the contributors, especially based on the boundary conditions applied at the location where droplets and gas are injected. We have shown here that such simplifications influence droplet and entrained gas characteristics. The next step will be to translate these conclusions in terms of variables representative of interesting parameters for nuclear safety.Keywords: Gas, Water spray, Safety.

    Rif.RSE​

    13001814

    Destinazione​

    NURETH 15th International Topical Meeting on Nuclear Reactor Thermalhydraulics 12-15 Maggio-2013

    Data Pubblicazione

    31 Dicembre 2013

    Autori​

    G. Manzini, S. Mimouni "ERDF-FRANCE", J. Xiao "IKET, KIT ", J. Malet "Institut de Radioprotection et de Suretè Nuclèaire (IRSN)", N.B. Siccama "NRG, SAFETY & POWER", L. Vyskocil "UJV REZ ", R. Huhtanen "VTT Technical research centre of Finland"

    Tipo Pubblicazione

    Memoria

    Progetti

    Network of Excellence for a Sustainable Integration of European Research on Severe Accident Phenomenology and Management-Phase 2 (SARNET2)

    Tag correlate

    #Impianti termoelettrici #Nucleare

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