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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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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