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Point Design for Deuterium-Deuterium Compact Reversed-Field Pinch Reactors

Ali E. Dabiri, Donald R. Dobrott, Husam Gurol, Dalton D. Schnack

Fusion Science and Technology

Volume 6 / Number 2P1 / September 1984 / Pages 265-272


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A deuterium-deuterium (D-D) reversed-field pinch (RFP) reactor may be made comparable in size and cost to a deuterium-tritium (D-T) reactor at the expense of high-thermal heat load to the first wall. This heat load is the result of the larger percentage of fusion power in charged particles in the D-D reaction as compared to the D-T reaction. The heat load may be reduced by increasing the reactor size and hence the cost. In addition to this “degraded” design, the size may be kept small by means of a higher heat load wall, or by means of a toroidal divertor, in which case most of the heat load seen by the wall is in the form of radiation. Point designs are developed for these approaches and cost studies are performed and compared with a D-T reactor. The results indicate that the cost of electricity of a D-D RFP reactor is ∼20% higher than a D-T RFP reactor. This increased cost could be offset by the inherent safety features of the D-D fuel cycle.

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