Feasibility study for the execution of a boron dilution test on the SPES-2 facility

This report has been issued in the frame of the ENEA and MSE research program on "Nuovo Nucleare da fissione". It is the deliverable D4-a of the task LP2 of the work program PAR-2011 "Adeguamento dello SPES2 per prove di sicurezza". The document deals with all the administrative and maintenance activities to be performed on the SPES-2 facility at SIET, in SPES-99 configuration, to simulate a boron dilution test, counterpart of the OECD-PKL E2.2 executed on the AREVA NP PKL facility. All the aspects to restart the facility, after 13 years inactivity have been considered, in particular the procedures to accomplish the PED requirements and the operations to refurbish the power channel, all other components, auxiliary systems, instrumentation and data acquisition system. Specific modification to the loops have been defined to allow the simulation of the above said boron dilution test. If the test will be performed, data of international interest for best-estimate code qualification will be recorded in the SPES-2 facility.