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Supporting data for: Optimal design of a toroidal field magnet system and cost of electricity implications for a tokamak using high temperature superconductors Open Access

The potential for reducing the Cost of Electricity (CoE) by using High Temperature Superconductors (HTS) in the Toroidal Field (TF) coils of a fusion tokamak power plant has been investigated using a new HTS module in the PROCESS systems code. We report the CoE and the design of HTS tokamaks that have been optimized by minimising the major radius of the plasma. Potential future improvements in both the superconducting properties and the structural materials for TF coils operating at 4.8 K and 30 K are considered. Increasing the critical current density by a factor of 10 (with a commensurate reduction in costs kA^{-1} m^{-1}) results in a CoE 4.4 % less than equivalent tokamaks using current low temperature superconductors (LTS). If the yield strength of the TF casing material is increased by 40 % to 1400 MPa, the CoE is further reduced by 3.4 %. Implementing both improvements and operating the TF coils at 4.8 K leads to CoE of 19.1 (10.1) €cent kW^{-1} h^{-1} for a 500 MW (1.5 GW) HTS reactor compared to 20.7 (11.1) €cent kW^{-1} h^{-1} for an LTS reactor (2013 costs). Operating the HTS TF coils at 30 K with both improvements, gives a similar CoE for HTS and LTS tokamaks.

Descriptions

Resource type

Other

Contributors

Creator: Lee, T. S. ^1,2
Creator: Jenkins, I. ²
Creator: Surrey, Elizabeth ²
Creator: Hampshire, Damian ¹
Contact person: Hampshire, Damian ¹

¹ Durham University, UK
² Culham Science Centre, UK

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Keyword

High temperature superconductors
PROCESS
cost electricity
Toroidal field magnets

Subject

Location

Language

Cited in

doi:10.1016/j.fusengdes.2015.06.125

Identifier

ark:/32150/gh93gz487
doi:10.15128/gh93gz487

Rights

All rights reserved All rights reserved

Publisher

Durham University

Date Created

2015-07-14T00:00:00.000+00:00

File Details

Depositor

D.P. Hampshire

Date Uploaded

21 October 2015, 14:10:14

Date Modified

25 July 2016, 16:07:03

Audit Status

failing

Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 1638122

Last modified: 2016:07:25 16:20:43+01:00

Filename: gh93gz487.zip

Original checksum: 53e914b1a96262e4b3ac7725ae06bc25