Overview of power exhaust experiments in the COMPASS divertor with liquid metals

Power handling experiments with a special liquid metal divertor module based on the capillary porous system technology were performed in the tokamak COMPASS. The performance of two metals (Li and LiSn alloy) were tested for the first time in a divertor under ELMy H-mode conditions. No damage of the...

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Main Authors: R. Dejarnac, J. Horacek, M. Hron, M. Jerab, J. Adamek, S. Atikukke, P. Barton, J. Cavalier, J. Cecrdle, M. Dimitrova, E. Gauthier, M. Iafrati, M. Imrisek, A. Marin Roldan, G. Mazzitelli, D. Naydenkova, A. Prishvitcyn, M. Tomes, D. Tskhakaya, G. Van Oost, J. Varju, P. Veis, A. Vertkov, P. Vondracek, V. Weinzettl
Format: Article
Language:English
Published: Elsevier 2020-12-01
Series:Nuclear Materials and Energy
Subjects:
CPS
ELM
Online Access:http://www.sciencedirect.com/science/article/pii/S2352179120300776
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spelling doaj-39ecacf10354486ea8238d048ce335f52020-12-19T05:07:44ZengElsevierNuclear Materials and Energy2352-17912020-12-0125100801Overview of power exhaust experiments in the COMPASS divertor with liquid metalsR. Dejarnac0J. Horacek1M. Hron2M. Jerab3J. Adamek4S. Atikukke5P. Barton6J. Cavalier7J. Cecrdle8M. Dimitrova9E. Gauthier10M. Iafrati11M. Imrisek12A. Marin Roldan13G. Mazzitelli14D. Naydenkova15A. Prishvitcyn16M. Tomes17D. Tskhakaya18G. Van Oost19J. Varju20P. Veis21A. Vertkov22P. Vondracek23V. Weinzettl24Institute of Plasma Physics of the CAS, Prague, Czech Republic; Corresponding author.Institute of Plasma Physics of the CAS, Prague, Czech RepublicInstitute of Plasma Physics of the CAS, Prague, Czech RepublicInstitute of Plasma Physics of the CAS, Prague, Czech RepublicInstitute of Plasma Physics of the CAS, Prague, Czech RepublicComenius University, Bratislava, SlovakiaInstitute of Plasma Physics of the CAS, Prague, Czech RepublicInstitute of Plasma Physics of the CAS, Prague, Czech RepublicFNSPE, Czech Technical University, Prague, Czech RepublicInstitute of Plasma Physics of the CAS, Prague, Czech RepublicCEA, IRFM, F-13108 Saint-Paul-lez-Durance, FranceENEA, Fusion Technology Division, Frascati, ItalyInstitute of Plasma Physics of the CAS, Prague, Czech RepublicComenius University, Bratislava, SlovakiaENEA, Fusion Technology Division, Frascati, ItalyInstitute of Plasma Physics of the CAS, Prague, Czech RepublicNational Research Nuclear University MEPhI, Moscow, RussiaInstitute of Plasma Physics of the CAS, Prague, Czech RepublicInstitute of Plasma Physics of the CAS, Prague, Czech RepublicNational Research Nuclear University MEPhI, Moscow, Russia; Ghent University, Ghent, Belgium; National Research University Moscow Power Engineering Institute, Moscow, RussiaInstitute of Plasma Physics of the CAS, Prague, Czech RepublicComenius University, Bratislava, SlovakiaJSC Red Star, Moscow, RussiaInstitute of Plasma Physics of the CAS, Prague, Czech RepublicInstitute of Plasma Physics of the CAS, Prague, Czech RepublicPower handling experiments with a special liquid metal divertor module based on the capillary porous system technology were performed in the tokamak COMPASS. The performance of two metals (Li and LiSn alloy) were tested for the first time in a divertor under ELMy H-mode conditions. No damage of the capillary mesh and a good exhaust capability were observed for both metals in two separate experiments with up to 12 MW/m2 of deposited perpendicular, inter-ELM steady-state heat flux and with ELMs of relative energy ~3% and a local peak energy fluence at the module ~15 kJ.m−2. No droplets were directly ejected from the mesh top surface and for the LiSn experiment, no contamination of the core and SOL plasmas by Sn was observed. The elemental depth profile analysis of 14 stainless-steel samples located around the vacuum vessel for each experiment provides information about the migration of evaporated/redeposited liquid elements.http://www.sciencedirect.com/science/article/pii/S2352179120300776CPSELMDivertorTokamakLiquid metalCOMPASS
collection DOAJ
language English
format Article
sources DOAJ
author R. Dejarnac
J. Horacek
M. Hron
M. Jerab
J. Adamek
S. Atikukke
P. Barton
J. Cavalier
J. Cecrdle
M. Dimitrova
E. Gauthier
M. Iafrati
M. Imrisek
A. Marin Roldan
G. Mazzitelli
D. Naydenkova
A. Prishvitcyn
M. Tomes
D. Tskhakaya
G. Van Oost
J. Varju
P. Veis
A. Vertkov
P. Vondracek
V. Weinzettl
spellingShingle R. Dejarnac
J. Horacek
M. Hron
M. Jerab
J. Adamek
S. Atikukke
P. Barton
J. Cavalier
J. Cecrdle
M. Dimitrova
E. Gauthier
M. Iafrati
M. Imrisek
A. Marin Roldan
G. Mazzitelli
D. Naydenkova
A. Prishvitcyn
M. Tomes
D. Tskhakaya
G. Van Oost
J. Varju
P. Veis
A. Vertkov
P. Vondracek
V. Weinzettl
Overview of power exhaust experiments in the COMPASS divertor with liquid metals
Nuclear Materials and Energy
CPS
ELM
Divertor
Tokamak
Liquid metal
COMPASS
author_facet R. Dejarnac
J. Horacek
M. Hron
M. Jerab
J. Adamek
S. Atikukke
P. Barton
J. Cavalier
J. Cecrdle
M. Dimitrova
E. Gauthier
M. Iafrati
M. Imrisek
A. Marin Roldan
G. Mazzitelli
D. Naydenkova
A. Prishvitcyn
M. Tomes
D. Tskhakaya
G. Van Oost
J. Varju
P. Veis
A. Vertkov
P. Vondracek
V. Weinzettl
author_sort R. Dejarnac
title Overview of power exhaust experiments in the COMPASS divertor with liquid metals
title_short Overview of power exhaust experiments in the COMPASS divertor with liquid metals
title_full Overview of power exhaust experiments in the COMPASS divertor with liquid metals
title_fullStr Overview of power exhaust experiments in the COMPASS divertor with liquid metals
title_full_unstemmed Overview of power exhaust experiments in the COMPASS divertor with liquid metals
title_sort overview of power exhaust experiments in the compass divertor with liquid metals
publisher Elsevier
series Nuclear Materials and Energy
issn 2352-1791
publishDate 2020-12-01
description Power handling experiments with a special liquid metal divertor module based on the capillary porous system technology were performed in the tokamak COMPASS. The performance of two metals (Li and LiSn alloy) were tested for the first time in a divertor under ELMy H-mode conditions. No damage of the capillary mesh and a good exhaust capability were observed for both metals in two separate experiments with up to 12 MW/m2 of deposited perpendicular, inter-ELM steady-state heat flux and with ELMs of relative energy ~3% and a local peak energy fluence at the module ~15 kJ.m−2. No droplets were directly ejected from the mesh top surface and for the LiSn experiment, no contamination of the core and SOL plasmas by Sn was observed. The elemental depth profile analysis of 14 stainless-steel samples located around the vacuum vessel for each experiment provides information about the migration of evaporated/redeposited liquid elements.
topic CPS
ELM
Divertor
Tokamak
Liquid metal
COMPASS
url http://www.sciencedirect.com/science/article/pii/S2352179120300776
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