Abstract
The central solenoid model coil (CSMC), a crucial component of China Fusion Energy Test Reactor, is currently in the design and manufacturing process. CSMC assembly consists of a number of steps such as winding pack, an outer NbTi coil, a middle Nb3Sn coil, an inner Nb3Sn coil, and a preload structure. The highest field of the model coil is 12 T with the maximum change rate of a magnetic field of the conductor is 1.5 T/s. In this paper, length of the cooling channels together with thermal–hydraulic parameters such as inlet pressure, temperature, and mass flow rate are optimized. In addition, thermal–hydraulic analysis for the cooling loop located in the worst condition of the model coil was conducted to recognize the temperature and mass flow rate change over time. The hydraulic model, the material properties, and the heat loads associated with analysis are given, and the results of the analysis are presented.
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