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- W3137777786 abstract "The goal of this work is to design a nozzle system around the Reactor Pressure Vessel (RPV) of a VVER-1000 nuclear reactor which would ensure successful melt retention during a severe accident. Simulations were performed with a multiphase model in ANSYS Fluent 19.1 to determine this. The results suggest that an efficient cooling can be achieved by inducing a flow rising parallel to the RPV walls in the flooded reactor cavity. In order to do this, it is proposed to use one central nozzle below the RPV and a ring of 32 nozzles 0.5 m above the RPV bottom. Assuming a 2 bar pressure, injection of 750 m3/h water at 80oC through the nozzles led to little steam production and a heat flux below the critical value." @default.
- W3137777786 created "2021-03-29" @default.
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- W3137777786 date "2021-01-01" @default.
- W3137777786 modified "2023-10-17" @default.
- W3137777786 title "CFD Analysis to Demonstrate in Vessel Retention Inducing a Bypass Flow" @default.
- W3137777786 doi "https://doi.org/10.23967/wccm-eccomas.2020.080" @default.
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