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Title: Transport analysis of stellarator reactors

The performance of deuterium-tritium stellarator reactors is studied with a new, fast one-dimensional (1-D) transport survey code that is based on the spectral collocation method. Two operating modes with different signs of the assumed radial electric field are identified. The operating mode with a positive electric field is characterized by high temperatures and moderate densities, whereas the other mode has lower temperatures and higher densities. Both modes lead to possible reactors that could tolerate a large alpha-particle energy loss. The sensitivity to device parameters and to profile assumptions is examined. Scaling expressions useful for parametric studies are obtained for different quantities of interest, and the 1-D code results are compared with results derived from an empirical scaling relation. Deuterium-helium-3 (D-{sup 3}He) operation is also feasible but is more demanding. The implications for stellarator reactor design optimization are discussed. 47 refs., 16 figs., 1 tab.
Authors:
 [1] ;  [2]
  1. (Tennessee Univ., Knoxville, TN (USA). Dept. of Nuclear Engineering Australian National Univ., Canberra (Australia). Research School of Physical Sciences)
  2. (Oak Ridge National Lab., TN (USA))
Publication Date:
OSTI Identifier:
6134428
Report Number(s):
ORNL/TM-11756
ON: DE91010489; TRN: 91-009580
DOE Contract Number:
AC05-84OR21400
Resource Type:
Technical Report
Research Org:
Oak Ridge National Lab., TN (USA)
Sponsoring Org:
DOE; USDOE, Washington, DC (USA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; STELLARATORS; TRANSPORT THEORY; ALPHA PARTICLES; CONFINEMENT TIME; D-T REACTORS; DESIGN; ELECTRIC FIELDS; ENERGY LOSSES; OPERATION; PERFORMANCE; TEMPERATURE DISTRIBUTION; CHARGED PARTICLES; CLOSED PLASMA DEVICES; LOSSES; THERMONUCLEAR DEVICES; THERMONUCLEAR REACTORS 700103* -- Fusion Energy-- Plasma Research-- Kinetics