Studies of the plasma vertical instability and its stabilized concepts in JA and EU broader approach, DEMO design activity

Hiroyasu Utoh; Shinsuke Tokunaga; Nobuyuki Asakura; Yoshiteru Sakamoto; Yoji Someya; Ryoji Hiwatari; Kenji Tobita; Gianfranco Federici; Ronald Wenninger; Francesco Maviglia; Raffaele Albanese; Roberto Ambrosino; Massimiliano Mattei; Fabio Villone

doi:10.1016/j.fusengdes.2018.04.026

Studies of the plasma vertical instability and its stabilized concepts in JA and EU broader approach, DEMO design activity

Hiroyasu Utoh, Shinsuke Tokunaga, Nobuyuki Asakura, Yoshiteru Sakamoto, Yoji Someya, Ryoji Hiwatari, Kenji Tobita, Gianfranco Federici, Ronald Wenninger, Francesco Maviglia, Raffaele Albanese, Roberto Ambrosino, Massimiliano Mattei, Fabio Villone

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Vertical instability of an elongated plasma and its stabilized concepts by in-vessel components and vacuum vessel (VV) design have been studied intensely in JA and EU Broader Approach, DEMO Design Activity. The vertical stabilization of the plasma represents one of the key issues for EU and JA DEMO, due to the large distance of the active control coils for the presence of thick breeding blanket system. A feasible DEMO reactor that maintains plasma vertical stability was proposed from an engineering viewpoint. The vertical stability performances are acceptable, without considering a passive stabilizer, if a maximum elongation of κ₉₅ = 1.6 is chosen. For the higher-elongated plasmas (κ₉₅ > 1.70), additional inboard passive stabilizer is effective.

Original language	English
Pages (from-to)	874-877
Number of pages	4
Journal	Fusion Engineering and Design
Volume	136
DOIs	https://doi.org/10.1016/j.fusengdes.2018.04.026
Publication status	Published - 2018 Nov
Externally published	Yes

Keywords

Broader approach DEMO design activity (BA DDA)
Conducting shell
DEMO design
In-vessel component
Plasma vertical stability

ASJC Scopus subject areas

Civil and Structural Engineering
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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10.1016/j.fusengdes.2018.04.026

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Utoh, H., Tokunaga, S., Asakura, N., Sakamoto, Y., Someya, Y., Hiwatari, R., Tobita, K., Federici, G., Wenninger, R., Maviglia, F., Albanese, R., Ambrosino, R., Mattei, M., & Villone, F. (2018). Studies of the plasma vertical instability and its stabilized concepts in JA and EU broader approach, DEMO design activity. Fusion Engineering and Design, 136, 874-877. https://doi.org/10.1016/j.fusengdes.2018.04.026

Utoh, H, Tokunaga, S, Asakura, N, Sakamoto, Y, Someya, Y, Hiwatari, R, Tobita, K, Federici, G, Wenninger, R, Maviglia, F, Albanese, R, Ambrosino, R, Mattei, M & Villone, F 2018, 'Studies of the plasma vertical instability and its stabilized concepts in JA and EU broader approach, DEMO design activity', Fusion Engineering and Design, vol. 136, pp. 874-877. https://doi.org/10.1016/j.fusengdes.2018.04.026

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title = "Studies of the plasma vertical instability and its stabilized concepts in JA and EU broader approach, DEMO design activity",

abstract = "Vertical instability of an elongated plasma and its stabilized concepts by in-vessel components and vacuum vessel (VV) design have been studied intensely in JA and EU Broader Approach, DEMO Design Activity. The vertical stabilization of the plasma represents one of the key issues for EU and JA DEMO, due to the large distance of the active control coils for the presence of thick breeding blanket system. A feasible DEMO reactor that maintains plasma vertical stability was proposed from an engineering viewpoint. The vertical stability performances are acceptable, without considering a passive stabilizer, if a maximum elongation of κ95 = 1.6 is chosen. For the higher-elongated plasmas (κ95 > 1.70), additional inboard passive stabilizer is effective.",

keywords = "Broader approach DEMO design activity (BA DDA), Conducting shell, DEMO design, In-vessel component, Plasma vertical stability",

author = "Hiroyasu Utoh and Shinsuke Tokunaga and Nobuyuki Asakura and Yoshiteru Sakamoto and Yoji Someya and Ryoji Hiwatari and Kenji Tobita and Gianfranco Federici and Ronald Wenninger and Francesco Maviglia and Raffaele Albanese and Roberto Ambrosino and Massimiliano Mattei and Fabio Villone",

note = "Funding Information: This work was carried out within the framework of the?Broader Approach DEMO Design Activity. Contribution by all members of JA and EU Home Teams for BA is greatly?appreciated. Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = nov,

doi = "10.1016/j.fusengdes.2018.04.026",

language = "English",

volume = "136",

pages = "874--877",

journal = "Fusion Engineering and Design",

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AU - Utoh, Hiroyasu

AU - Tokunaga, Shinsuke

AU - Asakura, Nobuyuki

AU - Sakamoto, Yoshiteru

AU - Someya, Yoji

AU - Hiwatari, Ryoji

AU - Tobita, Kenji

AU - Federici, Gianfranco

AU - Wenninger, Ronald

AU - Maviglia, Francesco

AU - Albanese, Raffaele

AU - Ambrosino, Roberto

AU - Mattei, Massimiliano

AU - Villone, Fabio

N1 - Funding Information: This work was carried out within the framework of the?Broader Approach DEMO Design Activity. Contribution by all members of JA and EU Home Teams for BA is greatly?appreciated. Publisher Copyright: © 2018 Elsevier B.V.

PY - 2018/11

Y1 - 2018/11

N2 - Vertical instability of an elongated plasma and its stabilized concepts by in-vessel components and vacuum vessel (VV) design have been studied intensely in JA and EU Broader Approach, DEMO Design Activity. The vertical stabilization of the plasma represents one of the key issues for EU and JA DEMO, due to the large distance of the active control coils for the presence of thick breeding blanket system. A feasible DEMO reactor that maintains plasma vertical stability was proposed from an engineering viewpoint. The vertical stability performances are acceptable, without considering a passive stabilizer, if a maximum elongation of κ95 = 1.6 is chosen. For the higher-elongated plasmas (κ95 > 1.70), additional inboard passive stabilizer is effective.

AB - Vertical instability of an elongated plasma and its stabilized concepts by in-vessel components and vacuum vessel (VV) design have been studied intensely in JA and EU Broader Approach, DEMO Design Activity. The vertical stabilization of the plasma represents one of the key issues for EU and JA DEMO, due to the large distance of the active control coils for the presence of thick breeding blanket system. A feasible DEMO reactor that maintains plasma vertical stability was proposed from an engineering viewpoint. The vertical stability performances are acceptable, without considering a passive stabilizer, if a maximum elongation of κ95 = 1.6 is chosen. For the higher-elongated plasmas (κ95 > 1.70), additional inboard passive stabilizer is effective.

KW - Broader approach DEMO design activity (BA DDA)

KW - Conducting shell

KW - DEMO design

KW - In-vessel component

KW - Plasma vertical stability

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Studies of the plasma vertical instability and its stabilized concepts in JA and EU broader approach, DEMO design activity

Abstract

Keywords

ASJC Scopus subject areas

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