A D-T tokamak fusion reactor with advanced blanket using compact fusion advanced Rankine (CFAR) cycle

K. Yoshikawa, D. Shimohiro, Y. Yamamoto, H. Toku, Y. Inui, M. Ishikawa, J. Umoto, N. Miki, A. Fukuyama, O. Mitarai, M. Okamoto, H. Sekimoto, Y. Fujii, Hu Kim, K. Watanabe, T. Ishii, T. Takagi, T. Suzuki, I. Mutoh, K. MiyazakiM. Saitoh, B. G. Logan, W. L. Barr, M. A. Hoffman, R. B. Campbell

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Recent progress of a D-T tokamak fusion reactor with advanced blanket concept using CFAR (Compact Fusion Advanced Rankine) cycle is presented. High enthalpy extraction in excess of 50% was found achievable by a nonequilibrium disk-type MHD generator for gas stagnation temperatures of 3000 K superheated by synchrotron radiation, leading to a 40% overall plant efficiency with recuperative heat cycle and advanced thermoelectric converters. The stored magnetic energy of a 10 T MHD three-pairs Helmholtz-type magnet was estimated to be about 600 MJ per MHD generator. A mixture of mercury and lithium liquid flow was examined and found applicable to reduce the mercury inventory. The tritium permeation loss inherent in the relatively high temperature CFAR cycle, neutronics relating to tritium breeding and streaming through the waveguide and the MHD generator duct are discussed. Results of a 2000 h high temperature (600-700°C) mercury corrosion test of Type 304 stainless steel, a TZM alloy and four kinds of ceramic rods in refluxing mercury with 0.004 mol fraction of potassium admixture have shown no noticeable corrosion except for Type 304 stainless steel.

本文言語English
ページ(範囲)239-248
ページ数10
ジャーナルFusion Engineering and Design
18
C
DOI
出版ステータスPublished - 1991 12月

ASJC Scopus subject areas

  • 土木構造工学
  • 原子力エネルギーおよび原子力工学
  • 材料科学(全般)
  • 機械工学

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