Effect of helium on temperature rise of helium blower drive motor in high-temperature gas-cooled reactor

摘要

The helium blower drive motor in High- Temperature Gas-Cooled Reactors is a key component for heat transfer in reactors where helium is the cooling medium for the reactor and driving motor. To study the influence of helium on the drive motor temperature distribution, a 3D simplified model of the motor was developed. The temperature distribution of the drive motor was obtained using finite element analysis where a simplified model was validated through test data. In addition, two schemes were proposed considering the relationships between environment pressures, cooling medium temperature and temperature distributions, the influence of helium on the drive motor heat transfer was observed. The results show that different inlet boundary conditions lead to different rising temperature trends under different pressures, and cooling medium temperatures have significant effects on motor temperature rising.