The Chinese Fusion Engineering Test Reactor (CFETR) is a tokamak device located between ITER and DEMO, with the primary goal of generating useable fusion energy through D–T reactions. The temperature distribution inside the blanket is closely related to the release of tritium, so controlling its internal temperature is particularly important. The goal of temperature control is to ensure that the temperature field of the blanket meets the temperature requirements for the effective release of blanket materials (structural materials, breeder, multiplier, etc.) and tritium. It focuses on the influence of blanket design on the temperature field, TBR, and tritium release in terms of materials, structure, and cooling systems. In this work, a method for optimizing the temperature field of the blanket based on 2D and 3D models is introduced. After optimizing the temperature, the maximum temperature of each breeding zone in the blanket is within the temperature control target range of 850–900 °C, meeting the requirements for temperature control in the blanket. Moreover, the temperature field of the entire breeding zone is evenly distributed, allowing the low nuclear heat region far from the plasma to achieve efficient tritium release temperature. This work provides an important method for the subsequent engineering design of the CFETR breeding blanket.
Li et al. (Tue,) studied this question.