Study of an advanced D-T tokamak fusion reactor with compact fusion advanced rankine (CFAR) cycle

K. Yoshikawa, M. Ohnishi, Y. Yamamoto, D. Shimohiro, Y. Inui, M. Ishikawa, J. Umoto, H. Kometani, A. Fukuyama, O. Mitarai, M. Okamoto, H. Sekimoto, Y. Fujii, K. Watanabe, T. Takagi

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)

Abstract

Recent progress of the CFAR (Compact Fusion Advanced Rankine) cycle concept for a D-T tokamak reactor is presented with emphasis on how an enthalpy extraction can be achieved with a nonequilibrium disk-type MHD (magnetohydrodynamic) generator. For the gas stagnation temperatures of 3000 K, enthalpy extraction in excess of 50% is found to be achievable, leading to a 40% overall plant efficiency when a recuperative heat cycle and recently advanced thermoelectric converters are adopted. About a 6-ton/s mercury flow is required to remove fusion energy while achieving the 3000-K gas stagnation temperature prior to the MHD generator. Studies of plasma parameters in the steady-state operation regime subject to plasma physics constraints, the minimum power in the start-up phase required for ignition, effects of the MHD magnet on the plasma-confining magnetic fields, neutron and microwave superheat, and mercury corrosion test of ceramic rods for 2000 h are also described.

Original languageEnglish
Pages1348-1351
Number of pages4
Publication statusPublished - 1989
EventProceedings - IEEE Thirteenth Symposium on Fusion Engineering Part 2 (of 2) - Knoxville, TN, USA
Duration: 1989 Oct 21989 Oct 6

Other

OtherProceedings - IEEE Thirteenth Symposium on Fusion Engineering Part 2 (of 2)
CityKnoxville, TN, USA
Period89/10/289/10/6

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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