Performance test of a helium circulator for the Helium Cooling System of the HCCR-TBS

A circulator, which is one of the essential components of the Helium Cooling System (HCS) of Helium Cooled Ceramic Reflector Test Blanket System (HCCR-TBS) for ITER project, has been developed to provide up to 1.5 kg/s of helium flow during nominal operation of the HCS. The circulator is designed for compression ratio of 1.1, maximum speed of 70,000 RPM, and electric power of 120 kWe with air-foil type bearing. The prototype circulator and the performance test facility will be assembled and constructed by June 2015. The performance test will be performed to verify design parameters and performance of the circulator. The prototype circulator will be installed the Helium Supply System (HeSS) constructed at KAERI to demonstrate the HCS of HCCR-TBS.