The CFETR tritium plant: Requirements and design progress

A tritium plant is essential for successful and safe operation of the China Fusion Engineering Test Reactor (CFETR) which aims to bridge the gaps between a fusion experimental reactor (namely ITER) and a demonstration reactor. At the end of 2017, CFETR integration engineering design started, which will last until the end of 2020. During the engineering design phase, the CFETR tritium plant is foreseen to accomplish a detailed conceptual design. At the end of 2014, a pre-conceptual design of tritium plant was already accomplished for the early CFETR concept which was based on a small size Tokamak (200 MW). However, the CFETR concept has changed a lot from the early version to the current one which was based on a larger Tokamak (200-1500 MW). A notable change is that the current CFETR concept will cover both the engineering test phase and the DEMO validation phase. As a result, the pre-conceptual design of CFETR tritium plant is considered to be out of date. In this report, the interfaces and requirements of CFETR tritium plant are redefined, and the most recent design progress of CFETR tritium plant is presented.