Compact reversed shear tokamak reactor with a superheated steam cycle

K. Okano, Y. Asaoka, T. Yoshida, Masahiro Furuya, K. Tomabechi, Y. Ogawa, N. Sekimura, R. Hiwatari, T. Yamamoto, T. Ishikawa, Y. Fukai, A. Hatayama, N. Inoue, A. Kohyama, K. Shinya, Y. Murakami, I. Senda, S. Yamazaki, S. Mori, J. AdachiM. Takemoto

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

The compact reversed shear tokamak CREST is a cost competitive reactor concept based on a reversed shear high β plasma and water cooled ferritic steel components. The moderate aspect ratio A = 3.4 and the elongation κ = 2.0 of CREST are very similar to the case of the ITER advanced mode plasma. Presentation of such a concept based on the ITER project should be worth while for formulating a fusion development strategy. The achievement of a competitive cost of electricity (COE) is the first priority for electric power industries. High β and high thermal efficiency are the most effective parameters for achieving a competitive COE. In order to achieve a high efficiency power plant, a superheated steam cycle has been adopted which permits a high thermal efficiency (η = 41%). Current profile control and high speed plasma rotation by neutral beam current drive stabilize the ideal MHD activity up to the Troyon coefficient βN = 5.5. A cost assessment has shown that CREST could generate about 1.16 GW(e) electric power at a competitive cost.

Original languageEnglish
Pages (from-to)635-646
Number of pages12
JournalNuclear Fusion
Volume40
Issue numberSPEC. ISS. 3
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes

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steam
reactors
shear
costs
cycles
thermodynamic efficiency
electric power
electricity
speed control
neutral beams
power plants
beam currents
elongation
aspect ratio
fusion
industries
high speed
steels
coefficients
profiles

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Okano, K., Asaoka, Y., Yoshida, T., Furuya, M., Tomabechi, K., Ogawa, Y., ... Takemoto, M. (2000). Compact reversed shear tokamak reactor with a superheated steam cycle. Nuclear Fusion, 40(SPEC. ISS. 3), 635-646. https://doi.org/10.1088/0029-5515/40/3Y/326

Compact reversed shear tokamak reactor with a superheated steam cycle. / Okano, K.; Asaoka, Y.; Yoshida, T.; Furuya, Masahiro; Tomabechi, K.; Ogawa, Y.; Sekimura, N.; Hiwatari, R.; Yamamoto, T.; Ishikawa, T.; Fukai, Y.; Hatayama, A.; Inoue, N.; Kohyama, A.; Shinya, K.; Murakami, Y.; Senda, I.; Yamazaki, S.; Mori, S.; Adachi, J.; Takemoto, M.

In: Nuclear Fusion, Vol. 40, No. SPEC. ISS. 3, 01.01.2000, p. 635-646.

Research output: Contribution to journalArticle

Okano, K, Asaoka, Y, Yoshida, T, Furuya, M, Tomabechi, K, Ogawa, Y, Sekimura, N, Hiwatari, R, Yamamoto, T, Ishikawa, T, Fukai, Y, Hatayama, A, Inoue, N, Kohyama, A, Shinya, K, Murakami, Y, Senda, I, Yamazaki, S, Mori, S, Adachi, J & Takemoto, M 2000, 'Compact reversed shear tokamak reactor with a superheated steam cycle', Nuclear Fusion, vol. 40, no. SPEC. ISS. 3, pp. 635-646. https://doi.org/10.1088/0029-5515/40/3Y/326
Okano K, Asaoka Y, Yoshida T, Furuya M, Tomabechi K, Ogawa Y et al. Compact reversed shear tokamak reactor with a superheated steam cycle. Nuclear Fusion. 2000 Jan 1;40(SPEC. ISS. 3):635-646. https://doi.org/10.1088/0029-5515/40/3Y/326
Okano, K. ; Asaoka, Y. ; Yoshida, T. ; Furuya, Masahiro ; Tomabechi, K. ; Ogawa, Y. ; Sekimura, N. ; Hiwatari, R. ; Yamamoto, T. ; Ishikawa, T. ; Fukai, Y. ; Hatayama, A. ; Inoue, N. ; Kohyama, A. ; Shinya, K. ; Murakami, Y. ; Senda, I. ; Yamazaki, S. ; Mori, S. ; Adachi, J. ; Takemoto, M. / Compact reversed shear tokamak reactor with a superheated steam cycle. In: Nuclear Fusion. 2000 ; Vol. 40, No. SPEC. ISS. 3. pp. 635-646.
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