The experimental study on the helium circulator of HTR-10

The helium circulator is a key component of 10 MW high temperature gas-cooled reactor (HTR-10), which has the helium coolant circulate inside the primary loop of the reactor. Before delivery, the performance experiment of the circulator was carried out in the factory at 0.426 MPa, 250 deg. C nitrogen condition. In the paper, by using dimensional methodology, the experiment results are converted to those on 3.0 MPa, 250 deg. C helium condition which is real working condition on the reactor. Then the circulator performances are analyzed. Finally, the operating performances on HTR-10 are predicted. The paper concludes that the circulator design was made correctly and the performances are satisfied with HTR-10 operating requirements