Y. Kozaki, S. Imagawa, A. Sagara


Design Windows and Cost Analysis on Helical Reactor

Date of publication:

Oct. 2008

Key words:

21 IAEA Fusion Energy Conference, FT/P3-18


Based on the recent experiment results of LHD and the magnet technology-cost basis developed for ITER construction, the design window of helical reactors are analyzed. For searching design windows and investigating their economical potential, we have developed a mass-cost estimating model linked with system design code (HeliCos). We found that the LHD-type helical reactor has the technically and economically attractive design windows, where the major radius is increased as large as for the sufficient blanket space, but the magnetic stored energy is decreased to reasonable level because of lower magnetic field with the convenient physics basis of H factor near 1.1 to the ISS04 scaling and beta value of 5%.

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