Catalyzed D-D stellarator reactor

Sheffield, John; Spong, Donald A.

doi:10.13182/FST15-161

Title: Catalyzed D-D stellarator reactor

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Abstract

The advantages of using the catalyzed deuterium-deuterium (D-D) approach for a fusion reactor—lower and less energetic neutron flux and no need for a tritium breeding blanket—have been evaluated in previous papers, giving examples of both tokamak and stellarator reactors. This paper presents an update for the stellarator example, taking account of more recent empirical transport scaling results and design studies of lower-aspect-ratio stellarators. We use a modified version of the Generic Magnetic Fusion Reactor model to cost a stellarator-type reactor. Recently, this model has been updated to reflect the improved science and technology base and costs in the magnetic fusion program. Furthermore, it is shown that an interesting catalyzed D-D, stellarator power plant might be possible if the following parameters could be achieved: R/ ≈ 4, required improvement factor to ISS04 scaling, F_R = 0.9 to 1.15, <β> ≈ 8.0% to 11.5%, Z_eff ≈ 1.45 plus a relativistic temperature correction, fraction of fast ions lost ≈ 0.07, B_m ≈ 14 to 16 T, and R ≈ 18 to 24 m.

Authors:

Sheffield, John ^[1]; Spong, Donald A. ^[2]

Roswell, GA (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Thu May 12 00:00:00 EDT 2016

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1261560

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Fusion Science and Technology

Additional Journal Information:: Journal Volume: 70; Journal Issue: 1; Journal ID: ISSN 1536-1055

Publisher:: American Nuclear Society

Country of Publication:: United States

Language:: English

Subject:: 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; stellarator; reactor; catalyzed D-D; deuterium

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                    Sheffield, John, and Spong, Donald A. Catalyzed D-D stellarator reactor.  United States: N. p., 2016. 
Web.  doi:10.13182/FST15-161.

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                    Sheffield, John, & Spong, Donald A. Catalyzed D-D stellarator reactor.  United States.  https://doi.org/10.13182/FST15-161

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                    Sheffield, John, and Spong, Donald A. Thu .  
"Catalyzed D-D stellarator reactor".  United States.  https://doi.org/10.13182/FST15-161.  https://www.osti.gov/servlets/purl/1261560.

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@article{osti_1261560,

  title        = {Catalyzed D-D stellarator reactor},

  author       = {Sheffield, John and Spong, Donald A.},

  abstractNote = {The advantages of using the catalyzed deuterium-deuterium (D-D) approach for a fusion reactor—lower and less energetic neutron flux and no need for a tritium breeding blanket—have been evaluated in previous papers, giving examples of both tokamak and stellarator reactors. This paper presents an update for the stellarator example, taking account of more recent empirical transport scaling results and design studies of lower-aspect-ratio stellarators. We use a modified version of the Generic Magnetic Fusion Reactor model to cost a stellarator-type reactor. Recently, this model has been updated to reflect the improved science and technology base and costs in the magnetic fusion program. Furthermore, it is shown that an interesting catalyzed D-D, stellarator power plant might be possible if the following parameters could be achieved: R/ ≈ 4, required improvement factor to ISS04 scaling, FR = 0.9 to 1.15, <β> ≈ 8.0% to 11.5%, Zeff ≈ 1.45 plus a relativistic temperature correction, fraction of fast ions lost ≈ 0.07, Bm ≈ 14 to 16 T, and R ≈ 18 to 24 m.},

  doi          = {10.13182/FST15-161},

  journal      = {Fusion Science and Technology},

  number       = 1,

  volume       = 70,

  place        = {United States},

  year         = {Thu May 12 00:00:00 EDT 2016},

  month        = {Thu May 12 00:00:00 EDT 2016}

}

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