Electromagnetic analysis of cylindrical WCCB TBM

• Published in: Fusion engineering and design Vol. 155; p. 111719
• Main Authors: Guan, Wenhai, Gwon, Hyoseong, Tanigawa, Hisashi, Hirose, Takanori, Kawamura, Yoshinori
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.06.2020; Elsevier Science Ltd
• Subjects: BH curve; Containers; Disruption; Ferromagnetism; Lorentz force; Maxwell force; Plasma disruption; Structural integrity; Maxwell force; Plasma disruption; Lorentz force; BH curve
• ISSN: 0920-3796; 1873-7196
• DOI: 10.1016/j.fusengdes.2020.111719

•Highest Lorentz force along radial direction was observed under plasma disruption scenario of MD-II.•Integrated Lorentz force of container was mainly contributed by first wall and rear part of side wall.•Maxwell force showed higher magnitude than case of Lorentz force regardless of time variations or distributions. In this study, electromagnetic analyses of cylindrical water-cooled ceramic breeder test blanket module under the three types of ITER plasma disruption scenarios were conducted. Highest Lorentz force (LF) along radial direction was observed under plasma disruption scenario of MD-II. Symmetrical LF along two-eight o'clock position was observed in side wall (SW) of container and could be canceled in summation. Integrated LF of a container was mainly contributed by first wall and rear part of SW. Compared with previous design of box-shaped container, lower magnitude of LF was shown in current design of cylindrical container, which was mainly understood by difference in the volume of the solid structure. Maxwell force (MF) was additionally evaluated considering the ferromagnetic characteristic of F82H. Magnitude and distribution of MF was much higher than LF. Besides connection structure, the structural integrity of container should be taken into account when ferromagnetic characteristics were considered.