Improvement on the plasma performances via application of flowing lithium limiters in EAST tokamak

G. Z. Zuo; J. S. Hu; R. Maingi; C. L. Li; X. C. Meng; Z. Sun; M. Huang; W. Xu; Y. Z. Qian; D. Andruczyk; K. Tritz; X. Z. Gong; J. G. Li

doi:10.1088/1402-4896/ab3bed

Improvement on the plasma performances via application of flowing lithium limiters in EAST tokamak

G. Z. Zuo, J. S. Hu, R. Maingi, C. L. Li, X. C. Meng, Z. Sun, M. Huang, W. Xu, Y. Z. Qian, D. Andruczyk, K. Tritz, X. Z. Gong, J. G. Li

Nuclear, Plasma, and Radiological Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

Three generation of flowing liquid lithium (FLiLi) limiters have been developed and successfully tested in EAST since 2014. It was confirmed that liquid Li could be driven by an innovative in-vessel DC electromagnetic J × B pump to form a recirculating loop. The FLiLi design was continuously upgraded, resulting in improvement of the liquid Li surface coverage (>80%), elimination of surface erosion, and the increase of heat exhaust capability. Promising results are obtained during FLiLi operations, including a reduction of impurities and recycling to improve plasma confinement, and a mitigation of ELM activity in H-mode plasmas. The FLiLi limiter program has shown basic compatibility with H-mode discharges with auxiliary heating power up to 8.3 MW. These efforts will expand to flowing liquid Li PFC in high heat flux zones, e.g. near the divertor strike point in reactors.

Original language	English (US)
Article number	014008
Journal	Physica Scripta
Volume	2020
Issue number	T171
DOIs	https://doi.org/10.1088/1402-4896/ab3bed
State	Published - Jan 1 2020
Event	17th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2019 - Eindhoven, Netherlands Duration: May 20 2019 → May 24 2019

Keywords

East
Flowing liquid li
Li surface coverage
Plasma performance
Surface erosion

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Mathematical Physics
Condensed Matter Physics

Online availability

10.1088/1402-4896/ab3bed

Library availability

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title = "Improvement on the plasma performances via application of flowing lithium limiters in EAST tokamak",

abstract = "Three generation of flowing liquid lithium (FLiLi) limiters have been developed and successfully tested in EAST since 2014. It was confirmed that liquid Li could be driven by an innovative in-vessel DC electromagnetic J × B pump to form a recirculating loop. The FLiLi design was continuously upgraded, resulting in improvement of the liquid Li surface coverage (>80%), elimination of surface erosion, and the increase of heat exhaust capability. Promising results are obtained during FLiLi operations, including a reduction of impurities and recycling to improve plasma confinement, and a mitigation of ELM activity in H-mode plasmas. The FLiLi limiter program has shown basic compatibility with H-mode discharges with auxiliary heating power up to 8.3 MW. These efforts will expand to flowing liquid Li PFC in high heat flux zones, e.g. near the divertor strike point in reactors.",

keywords = "East, Flowing liquid li, Li surface coverage, Plasma performance, Surface erosion",

author = "Zuo, {G. Z.} and Hu, {J. S.} and R. Maingi and Li, {C. L.} and Meng, {X. C.} and Z. Sun and M. Huang and W. Xu and Qian, {Y. Z.} and D. Andruczyk and K. Tritz and Gong, {X. Z.} and Li, {J. G.}",

note = "Publisher Copyright: {\textcopyright} 2020 The Royal Swedish Academy of Sciences.; 17th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2019 ; Conference date: 20-05-2019 Through 24-05-2019",

year = "2020",

month = jan,

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doi = "10.1088/1402-4896/ab3bed",

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TY - JOUR

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AU - Zuo, G. Z.

AU - Hu, J. S.

AU - Maingi, R.

AU - Li, C. L.

AU - Meng, X. C.

AU - Sun, Z.

AU - Huang, M.

AU - Xu, W.

AU - Qian, Y. Z.

AU - Andruczyk, D.

AU - Tritz, K.

AU - Gong, X. Z.

AU - Li, J. G.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - Three generation of flowing liquid lithium (FLiLi) limiters have been developed and successfully tested in EAST since 2014. It was confirmed that liquid Li could be driven by an innovative in-vessel DC electromagnetic J × B pump to form a recirculating loop. The FLiLi design was continuously upgraded, resulting in improvement of the liquid Li surface coverage (>80%), elimination of surface erosion, and the increase of heat exhaust capability. Promising results are obtained during FLiLi operations, including a reduction of impurities and recycling to improve plasma confinement, and a mitigation of ELM activity in H-mode plasmas. The FLiLi limiter program has shown basic compatibility with H-mode discharges with auxiliary heating power up to 8.3 MW. These efforts will expand to flowing liquid Li PFC in high heat flux zones, e.g. near the divertor strike point in reactors.

AB - Three generation of flowing liquid lithium (FLiLi) limiters have been developed and successfully tested in EAST since 2014. It was confirmed that liquid Li could be driven by an innovative in-vessel DC electromagnetic J × B pump to form a recirculating loop. The FLiLi design was continuously upgraded, resulting in improvement of the liquid Li surface coverage (>80%), elimination of surface erosion, and the increase of heat exhaust capability. Promising results are obtained during FLiLi operations, including a reduction of impurities and recycling to improve plasma confinement, and a mitigation of ELM activity in H-mode plasmas. The FLiLi limiter program has shown basic compatibility with H-mode discharges with auxiliary heating power up to 8.3 MW. These efforts will expand to flowing liquid Li PFC in high heat flux zones, e.g. near the divertor strike point in reactors.

KW - East

KW - Flowing liquid li

KW - Li surface coverage

KW - Plasma performance

KW - Surface erosion

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JF - Physica Scripta

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ER -

Improvement on the plasma performances via application of flowing lithium limiters in EAST tokamak

Abstract

Keywords

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