Engineering challenges in designing an attractive compact stellarator power plant

This paper summarizes the key engineering outcomes from the ARIES-CS study. The most promising power plant concept is escribed. The engineering design of the fusion power-core components (including the blanket and divertor) and the coil structural esign are briefly described along with a summary of the key results from the detailed neutronics, stress, thermal-hydraulic and ower cycle analyses performed in support of the design. The preferred port-based maintenance scheme is summarized. The key tellarator-specific challenges affecting the design are highlighted, including the impact of the minimum plasma–coil distance, he coil design requirements and the need for alpha power accommodation. 2007 Published by Elsevier B.V.