Mihoyo’s Investment in Nuclear Fusion Reaches Milestone with ‘Honghuang 70’ Tokamak Magnet Forming A Loop

On January 11th, FusionEnergy announced that the 12 toroidal field (TF) magnets of the ‘Honghuang 70’ high-temperature superconducting tokamak device have been successfully assembled with the vacuum chamber and inner cooling screen.

According to the introduction, the TF magnet ring is an important milestone in the assembly process of ‘Honghuang 70’. The 12 sets of TF magnets in ‘Honghuang 70’ are installed outside the vacuum chamber, forming a toroidal magnetic field that confines plasma. The vacuum chamber is installed inside the TF magnet and serves as a circular ‘reactor vessel’ that carries high-temperature plasma. The inner cooling screen is installed between the vacuum chamber and the TF magnet, providing a thermal barrier to protect the superconducting magnet from high-temperature components in the vacuum chamber.

‘Honghuang 70’ is designed, developed, and constructed by Energy Singularities. The overall installation is undertaken by China Nuclear Industry Fifth Construction Co., Ltd. (CNF).

‘Honghuang 70’ is a fully high-temperature superconducting tokamak device designed and developed for energy singularity. Originally planned to be completed and operational by the end of 2023, it appears that there has been a delay. The entire magnet system of the ‘Honghuang 70’ device, including toroidal field (TF) coils, poloidal field (PF) coils, and central solenoid (CS) coils, are constructed using high-temperature superconducting materials. ‘Honghuang 70’ claims to be the world’s first fully operational high-temperature superconducting tokamak device, leading in verifying the engineering feasibility of the high-temperature superconducting tokamak technology route at a complete device level.

SEE ALSO: Mihoyo Invests in Nuclear Fusion, the ‘Honghuang 70’ Tokamak Main System Deliveres