【摘 要】
：
The HTR-10 is a small modular high-tempera-ture reactor located in Tsinghua University, in China. After the reactor ran continuously for 72 h at full power in t
【机 构】
：
Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear
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The HTR-10 is a small modular high-tempera-ture reactor located in Tsinghua University, in China. After the reactor ran continuously for 72 h at full power in the commissioning stage, a full load rejection test was con-ducted by manually disconnecting the generator from the grid. In this study, reactor transients were analyzed using the THERMIX model. Some of the important thermal–fiuid phenomena that occurred after the test initiation are dis-cussed here, including the natural convection of helium in the core and the temperature redistribution in the reactor. Temperatures reproduced for the measuring points arran-ged in the inteals were in agreement with the test data. This demonstrated that the code and calculation model are suitable for posttest analysis applications. Regarding the safety features of the reactor, there was a large margin between the predicted maximum fuel temperature of 997°C and the safety limit of 1620°C.
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