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Design Window Analysis for the Helical DEMO Reactor FFHR-d1

Takuya GOTO, Junichi MIYAZAWA, Hitoshi TAMURA, Teruya TANAKA, Shinji HAMAGUCHI, Nagato YANAGI, Akio SAGARA and the FFHR Design Group

National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan

(Received 1 December 2011 / Accepted 16 April 2012 / Published 26 July 2012)

Abstract

Conceptual design activity for the LHD-type helical DEMO reactor FFHR-d1 has been conducted at the National Institute for Fusion Science under the Fusion Engineering Research Project since FY2010. In the first step of the conceptual design process, design window analysis was conducted using the system design code HELIOSCOPE by the “Design Integration Task Group”. On the basis of a parametric scan with the core plasma design based on the DPE (Direct Profile Extrapolation) method, a design point having a major radius of 15.6 m and averaged magnetic field strength at the helical coil winding center of 4.7 T was selected as a candidate. The validity of the design was confirmed through the analysis by the related task groups (in-vessel component, blanket, and superconducting magnet).

Copyright (c) 2012 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

LHD-type heliotron system, DEMO, conceptual design, system design code, design window analysis

DOI: 10.1585/pfr.7.2405084

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This paper may be cited as follows:

Takuya GOTO, Junichi MIYAZAWA, Hitoshi TAMURA, Teruya TANAKA, Shinji HAMAGUCHI, Nagato YANAGI, Akio SAGARA and the FFHR Design Group, Plasma Fusion Res. 7, 2405084 (2012).