TY - JOUR
T1 - Cooling water system design of Japan's DEMO for fusion power production
AU - The Joint Special Design Team for Fusion DEMO
AU - Miyoshi, Yuya
AU - Aoki, Akira
AU - Hiwatari, Ryoji
AU - Someya, Youji
AU - Sakamoto, Yoshiteru
AU - Tobita, Kenji
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2018/1
Y1 - 2018/1
N2 - 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 70 MW electric power and generates 620 MW power with a 1.5 GW fusion power plasma. This research indicates the basic concept of Japan's DEMO CWS that can be practically achieved.
AB - 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 70 MW electric power and generates 620 MW power with a 1.5 GW fusion power plasma. This research indicates the basic concept of Japan's DEMO CWS that can be practically achieved.
KW - Cooling water system
KW - DEMO
KW - Fusion reactor design
KW - Plant design
KW - Power generation
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U2 - 10.1016/j.fusengdes.2017.11.013
DO - 10.1016/j.fusengdes.2017.11.013
M3 - Article
AN - SCOPUS:85036460463
SN - 0920-3796
VL - 126
SP - 110
EP - 115
JO - Fusion Engineering and Design
JF - Fusion Engineering and Design
ER -