Advanced Stellarator Power Plants

UWFDM-1324 Nuclear Challenges and Progress in Designing Stellarator Power Plants

Over the past 2-3 decades, stellarator power plants have been studied in the U.S., Europe, and Japan as an alternate to the mainline magnetic fusion tokamaks, offering steady state operation and eliminating the risk of plasma disruptions. The earlier 1980s studies suggested large stellarators with an average major radius exceeding 20 m. The most recent development of the compact stellarator con...

Compact Stellarator Power Plants – Prospects, Technical Issue, and R&D Directions

Results of a detailed and integrated study of compact stellarator configurations as fusion power plant, ARIES-CS, are reported in this paper. The first major goal of the ARIES-CS research was to investigate whether stellarator power plants can be made to be similar in size to advanced tokamak variants. We focused our analysis on quasi-axisymmetric (QAS) configurations as they are able to operat...

UWFDM-1140 Clearance Issues for Advanced Fusion Power Plants

Over the past 10 years, the ARIES team has been devoting a serious effort to reduce the volume of radwaste generated by fusion power plants. Recently, an initiative was launched in the U.S. and Europe to reduce the radwaste volume further by clearing the outer components from regulatory control. Before proceeding further with the development of a new strategy for the U.S. fusion waste managemen...

Advanced Emissions Control Technologies for Coal-Fired Power Plants

Comparative Evaluation of Advanced Coal-Based Power Plants

The purpose of this study is to comparatively evaluate four types of advanced conceptual power plants based on coal. With efficiency, costof-electricity, and emissions as main criteria, the evaluation was made under consistent design conditions and economic assumptions. The plants considered are a supercritical steam power plant (SC 580◦C), an indirectly coal-fired power system (HIPPS), an adva...