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dynomak_poster_epr.pdf2013-03-04 09:40:05Derek Sutherland

A high-beta spheromak reactor system using existing nuclear power technologies and fusion technologies developed for ITER

Author: Derek A. Sutherland
Requested Type: Consider for Invited
Submitted: 2012-12-07 16:05:35

Co-authors: T.R. Jarboe, K. Morgan, M. Pfaff, S. Lavine, Y. Kamikawa, M. Hughes, P. Andrist

Contact Info:
University of Washington
5000 25th Ave NE #2204B
Seattle, WA   98105

Abstract Text:
A high-beta spheromak reactor system has been designed with an overnight capital cost that is competitive with conventional fission power plants. This reactor system utilizes recently discovered imposed dynamo current drive (IDCD) and a molten-salt (FLiBe) blanket system for first-wall cooling, neutron moderation and tritium breeding. Currently available materials and ITER developed cryogenic pumping systems were implemented in this design on the basis of technological feasibility. A tritium breeding ratio (TBR) of greater than 1.1 has been determined using a Monte Carlo N-Particle (MCNP) neutron transport simulation. High temperature superconducting tapes (YBCO) were used for the equilibrium coil set, substantially reducing the recirculating power for this reactor system. Using zirconium hydride for neutron shielding, a limiting equilibrium coil lifetime of greater than thirty full-power years has been achieved. The primary FLiBe loop was coupled to a supercritical carbon dioxide Brayton cycle via printed circuit heat exchangers (PCHEs) due to attractive economics and higher electrical conversion efficiencies. With these advancements, an electrical output of 1000 MW from a thermal output of 2480 MW has been achieved, yielding an overall plant efficiency of 40%.

Characterization: 4.0


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