LabVIEW screenshots 052725

Primary Coolant Apparatus Test (PCAT) for the Microreactor Applications Research Validation (MARVEL) project. The PCAT replicates the MARVEL reactor’s primary loop . PCAT uses sodium-potassium eutectic as a primary coolant to transfer heat by natural circulation to four heavy-metal cooled intermediate heat-exchangers. Four Stirling engines, installed on the top of intermediate heat exchangers, convert the thermal power to electrical power and drive the natural circulation of secondary coolant inside the heat exchangers (i.e., LBE). The primary scope of the PCAT is to provide thermal-hydraulic phenomenological data for a series of validation of the computational tools used in the design and analysis of MARVEL (1D system thermal-hydraulic and 3D computational fluid dynamic (CFD) codes), and to investigate the thermal hydraulic performances of the whole system.