Compact reversed shear tokamak reactor with a superheated steam cycle

K. Okano, Y. Asaoka, T. Yoshida, M. 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

研究成果: Article査読

47 被引用数 (Scopus)


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.

ジャーナルNuclear Fusion
出版ステータスPublished - 2000 1 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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