Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6743756 | Fusion Engineering and Design | 2018 | 6 Pages |
Abstract
Considering the water cooling system in fusion reactors, there are several fusion-specific challenges in designs of in-vessel components and their cooling water systems (CWS). In this research, solutions of the challenges have been discussed and indicate the CWS concept of Japan's DEMO. The CWS transfers thermal energy of blanket and a part of divertor to a generator system, and thermal energy of the other part of divertor is used as heat utilization in plant. The required performance of system devices such as pumps is expected to be achieved by proven technologies and its extensions. It is also indicated that blanket can work as the low-pass filter, and can suppress the effect of fusion output fluctuation. The designed cooling water system requires 70Â MW electric power and generates 620Â MW power with a 1.5Â GW fusion power plasma. This research indicates the basic concept of Japan's DEMO CWS that can be practically achieved.
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Authors
Yuya Miyoshi, Akira Aoki, Ryoji Hiwatari, Youji Someya, Yoshiteru Sakamoto, Kenji Tobita, The Joint Special Design Team for Fusion DEMO The Joint Special Design Team for Fusion DEMO,