Browsing by Author "Nitti, FS"

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    Preliminary thermohydraulics design of LORELEI an experimental device of JHR
    (European Nuclear Society, 2012-03-18) Nitti, FS; Bourdon, S; Gonnier, C; Roux, P; Estrade, J; Bignan, G; Wong, L
    ln the Jules Horowitz Reactor (JHR) experimental facilities will be available, including the Light water One Rod Equipment for LOCA Experimental Investigations (LORELEI) device. ln this work the thermohydraulics design of the LORELEI facility was developed with the code CATHARE-2. The objective of the work was: to define a 3D geometry of the facility and to verify the capacity of the system, under natural circulation, to remove the power generated both by the fuel rod (up to 400 W/cm) and by gamma irradiation heating on the structures, during the re-irradiation phase before the simulation of the high temperature transient. A parametric calculation modifying several geometrical parameters was performed. The parameters that should be varied were evaluate with an analytical approach. A final geometry of the facility, able to work in natural circulation condition up to the maximum power was selected. Further calculation was performed to analyze the correlation between the accumulation of steam and the geometries of device at constant power.