Preliminary analysis of alternative divertors for DEMO

F. Militello; L. Aho-Mantila; R. Ambrosino; T. Body; H. Bufferand; G. Calabro; G. Ciraolo; D. Coster; G. Di Gironimo; P. Fanelli; N. Fedorczak; A. Herrmann; P. Innocente; R. Kembleton; J. Lilburne; T. Lunt; D. Marzullo; S. Merriman; D. Moulton; A. H. Nielsen; J. T. Omotani; G. Ramogida; H. Reimerdes; M. Reinhart; P. Ricci; F. Riva; A. Stegmeir; F. Subba; W. Suttrop; P. Tamain; M. Teschke; A. Thrysoe; W. Treutterer; S. Varoutis; M. Wensing; A. Wilde; M. Wischmeier; L. Y. Xiang

doi:10.1016/j.nme.2021.100908

Preliminary analysis of alternative divertors for DEMO

F. Militello^*, L. Aho-Mantila, R. Ambrosino, T. Body, H. Bufferand, G. Calabro, G. Ciraolo, D. Coster, G. Di Gironimo, P. Fanelli, N. Fedorczak, A. Herrmann, P. Innocente, R. Kembleton, J. Lilburne, T. Lunt, D. Marzullo, S. Merriman, D. Moulton, A. H. NielsenJ. T. Omotani, G. Ramogida, H. Reimerdes, M. Reinhart, P. Ricci, F. Riva, A. Stegmeir, F. Subba, W. Suttrop, P. Tamain, M. Teschke, A. Thrysoe, W. Treutterer, S. Varoutis, M. Wensing, A. Wilde, M. Wischmeier, L. Y. Xiang

^*Corresponding author for this work

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Abstract

A physics and engineering analysis of alternative divertor configurations is carried out by examining benefits and problems by comparing the baseline single null solution with a Snowflake, an X- and a Super-X divertor. It is observed that alternative configurations can provide margin and resilience against large power fluctuations, but their engineering has intrinsic difficulties, especially in the balance between structural solidity and accessibility of the components and when the specific poloidal field coil positioning poses further constraints. A hybrid between the X- and Super-X divertor is proposed as a possible solution to the integration challenge.

Original language	English
Article number	100908
Journal	Nuclear Materials and Energy
Volume	26
Number of pages	7
ISSN	2352-1791
DOIs	https://doi.org/10.1016/j.nme.2021.100908
Publication status	Published - 2021

Keywords

Alternative divertor configurations
DEMO
Divertor design

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Militello, F., Aho-Mantila, L., Ambrosino, R., Body, T., Bufferand, H., Calabro, G., Ciraolo, G., Coster, D., Di Gironimo, G., Fanelli, P., Fedorczak, N., Herrmann, A., Innocente, P., Kembleton, R., Lilburne, J., Lunt, T., Marzullo, D., Merriman, S., Moulton, D., ... Xiang, L. Y. (2021). Preliminary analysis of alternative divertors for DEMO. Nuclear Materials and Energy, 26, Article 100908. https://doi.org/10.1016/j.nme.2021.100908

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title = "Preliminary analysis of alternative divertors for DEMO",

abstract = "A physics and engineering analysis of alternative divertor configurations is carried out by examining benefits and problems by comparing the baseline single null solution with a Snowflake, an X- and a Super-X divertor. It is observed that alternative configurations can provide margin and resilience against large power fluctuations, but their engineering has intrinsic difficulties, especially in the balance between structural solidity and accessibility of the components and when the specific poloidal field coil positioning poses further constraints. A hybrid between the X- and Super-X divertor is proposed as a possible solution to the integration challenge.",

keywords = "Alternative divertor configurations, DEMO, Divertor design",

author = "F. Militello and L. Aho-Mantila and R. Ambrosino and T. Body and H. Bufferand and G. Calabro and G. Ciraolo and D. Coster and {Di Gironimo}, G. and P. Fanelli and N. Fedorczak and A. Herrmann and P. Innocente and R. Kembleton and J. Lilburne and T. Lunt and D. Marzullo and S. Merriman and D. Moulton and Nielsen, {A. H.} and Omotani, {J. T.} and G. Ramogida and H. Reimerdes and M. Reinhart and P. Ricci and F. Riva and A. Stegmeir and F. Subba and W. Suttrop and P. Tamain and M. Teschke and A. Thrysoe and W. Treutterer and S. Varoutis and M. Wensing and A. Wilde and M. Wischmeier and Xiang, {L. Y.}",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2021",

doi = "10.1016/j.nme.2021.100908",

language = "English",

volume = "26",

journal = "Nuclear Materials and Energy",

issn = "2352-1791",

publisher = "Elsevier",

}

Militello, F, Aho-Mantila, L, Ambrosino, R, Body, T, Bufferand, H, Calabro, G, Ciraolo, G, Coster, D, Di Gironimo, G, Fanelli, P, Fedorczak, N, Herrmann, A, Innocente, P, Kembleton, R, Lilburne, J, Lunt, T, Marzullo, D, Merriman, S, Moulton, D, Nielsen, AH, Omotani, JT, Ramogida, G, Reimerdes, H, Reinhart, M, Ricci, P, Riva, F, Stegmeir, A, Subba, F, Suttrop, W, Tamain, P, Teschke, M, Thrysoe, A, Treutterer, W, Varoutis, S, Wensing, M, Wilde, A, Wischmeier, M & Xiang, LY 2021, 'Preliminary analysis of alternative divertors for DEMO', Nuclear Materials and Energy, vol. 26, 100908. https://doi.org/10.1016/j.nme.2021.100908

TY - JOUR

T1 - Preliminary analysis of alternative divertors for DEMO

AU - Militello, F.

AU - Aho-Mantila, L.

AU - Ambrosino, R.

AU - Body, T.

AU - Bufferand, H.

AU - Calabro, G.

AU - Ciraolo, G.

AU - Coster, D.

AU - Di Gironimo, G.

AU - Fanelli, P.

AU - Fedorczak, N.

AU - Herrmann, A.

AU - Innocente, P.

AU - Kembleton, R.

AU - Lilburne, J.

AU - Lunt, T.

AU - Marzullo, D.

AU - Merriman, S.

AU - Moulton, D.

AU - Nielsen, A. H.

AU - Omotani, J. T.

AU - Ramogida, G.

AU - Reimerdes, H.

AU - Reinhart, M.

AU - Ricci, P.

AU - Riva, F.

AU - Stegmeir, A.

AU - Subba, F.

AU - Suttrop, W.

AU - Tamain, P.

AU - Teschke, M.

AU - Thrysoe, A.

AU - Treutterer, W.

AU - Varoutis, S.

AU - Wensing, M.

AU - Wilde, A.

AU - Wischmeier, M.

AU - Xiang, L. Y.

PY - 2021

Y1 - 2021

N2 - A physics and engineering analysis of alternative divertor configurations is carried out by examining benefits and problems by comparing the baseline single null solution with a Snowflake, an X- and a Super-X divertor. It is observed that alternative configurations can provide margin and resilience against large power fluctuations, but their engineering has intrinsic difficulties, especially in the balance between structural solidity and accessibility of the components and when the specific poloidal field coil positioning poses further constraints. A hybrid between the X- and Super-X divertor is proposed as a possible solution to the integration challenge.

AB - A physics and engineering analysis of alternative divertor configurations is carried out by examining benefits and problems by comparing the baseline single null solution with a Snowflake, an X- and a Super-X divertor. It is observed that alternative configurations can provide margin and resilience against large power fluctuations, but their engineering has intrinsic difficulties, especially in the balance between structural solidity and accessibility of the components and when the specific poloidal field coil positioning poses further constraints. A hybrid between the X- and Super-X divertor is proposed as a possible solution to the integration challenge.

KW - Alternative divertor configurations

KW - DEMO

KW - Divertor design

U2 - 10.1016/j.nme.2021.100908

DO - 10.1016/j.nme.2021.100908

M3 - Journal article

AN - SCOPUS:85099522644

SN - 2352-1791

VL - 26

JO - Nuclear Materials and Energy

JF - Nuclear Materials and Energy

M1 - 100908

ER -

Preliminary analysis of alternative divertors for DEMO

Abstract

Keywords

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