RELAP5-3D thermal hydraulic analysis of the target cooling system in the SPES experimental facility

32nd UIT (Italian Union of Thermo–fluid-dynamics) Heat Transfer Conference

物理学;力学

Giardina, M.^1 ; Castiglia, F.^1 ; Buffa, P.^1 ; Palermo, G.^1 ; Prete, G.^2

Department of Energy, Information Engineering and Mathematical Models (DEIM), University of Palermo, Viale delle Scienze-Parco d'Orléans, Palermo

90128, Italy^1

National Institute of Nuclear Physics, National Laboratory of Legnaro, Italy^2

关键词: Experimental facilities;    Isotope separation on line;    RELAP5;    Safety analysis;    SPES;    Thermal hydraulic system code;    Thermal-hydraulic analysis;    Thermo-fluid dynamics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/547/1/012032/pdf
DOI  :  10.1088/1742-6596/547/1/012032

学科分类：力学，机械学

来源: IOP

【 摘 要 】

The SPES (Selective Production of Exotic Species) experimental facility, under construction at the Italian National Institute of Nuclear Physics (INFN) Laboratories of Legnaro, Italy, is a second generation Isotope Separation On Line (ISOL) plant for advanced nuclear physic studies. The UCx target-ion source system works at temperature of about 2273 K, producing a high level of radiation (105Sv/h), for this reason a careful risk analysis for the target chamber is among the major safety issues. In this paper, the obtained results of thermofluid-dynamics simulations of accidental transients in the SPES target cooling system are reported. The analysis, performed by using the RELAP5-3D 2.4.2 qualified thermal-hydraulic system code, proves good safety performance of this system during different accidental conditions.