Effect of continuously flowing liquid Li limiter on particle and heat fluxes during H-mode discharges in EAST
Particle and heat fluxes were successfully controlled by using a continuously flowing liquid Li (FLiLi) limiter in the H-mode discharges with high plasma heating power in the Experimental Advanced Superconducting Tokamak device. There were strong interactions between the FLiLi limiter and high-power...
| Main Authors: | , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-10-01
|
| Series: | Nuclear Materials and Energy |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352179122001442 |
| _version_ | 1811206223436972032 |
|---|---|
| author | G.Z. Zuo C.L. Li R. Maingi X.C. Meng D. Andruczyk P.J. Sun Z. Sun W. Xu M. Huang Z.L. Tang D.H. Zhang Y.J. Chen Q. Zang Y.M. Wang Y.F. Wang K. Tritz J.S. Hu |
| author_facet | G.Z. Zuo C.L. Li R. Maingi X.C. Meng D. Andruczyk P.J. Sun Z. Sun W. Xu M. Huang Z.L. Tang D.H. Zhang Y.J. Chen Q. Zang Y.M. Wang Y.F. Wang K. Tritz J.S. Hu |
| author_sort | G.Z. Zuo |
| collection | DOAJ |
| description | Particle and heat fluxes were successfully controlled by using a continuously flowing liquid Li (FLiLi) limiter in the H-mode discharges with high plasma heating power in the Experimental Advanced Superconducting Tokamak device. There were strong interactions between the FLiLi limiter and high-power plasma with a ∼ 8.3 MW source heating power, and successively, a bright Li radiation ring was produced, which effectively decreased fuel particle recycling by approximately 50%. Due to Li efflux from FLiLi during a series of high-power discharges, an obvious real-time wall conditioning effect was produced, and fuel particle recycling further decreased. Moreover, the value of Zeff decreased from 2.3 to 1.6 due to a decrease in impurity sources; this was attributed to the accumulation of Li deposited on the first wall, which effectively protected the wall materials. The decreased recycling and impurity radiation achieved high-energy confinement plasma, and the average stored energy increased up to ∼ 290 kJ. Moreover, due to the effect of Li vapor shielding, nearly 30% plasma heat flux was dissipated before it arrived at the Li limiter. These results promote further exploration of liquid Li solutions for the critical challenge of heat flux handling and particle control in fusion power plants. |
| first_indexed | 2024-04-12T03:44:09Z |
| format | Article |
| id | doaj.art-6a5b72f3f87a48d78c4c7dc22d35041e |
| institution | Directory Open Access Journal |
| issn | 2352-1791 |
| language | English |
| last_indexed | 2024-04-12T03:44:09Z |
| publishDate | 2022-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Materials and Energy |
| spelling | doaj.art-6a5b72f3f87a48d78c4c7dc22d35041e2022-12-22T03:49:11ZengElsevierNuclear Materials and Energy2352-17912022-10-0133101263Effect of continuously flowing liquid Li limiter on particle and heat fluxes during H-mode discharges in EASTG.Z. Zuo0C.L. Li1R. Maingi2X.C. Meng3D. Andruczyk4P.J. Sun5Z. Sun6W. Xu7M. Huang8Z.L. Tang9D.H. Zhang10Y.J. Chen11Q. Zang12Y.M. Wang13Y.F. Wang14K. Tritz15J.S. Hu16Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China; Corresponding authors.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China; University of Science and Technology of China, Hefei, Anhui 230026, ChinaPrinceton University Plasma Physics Laboratory Princeton, NJ 08543, USAInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China; Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, ChinaCenter for Plasma Material Interactions, University of Illinois Urbana-Champaign, MD 21211, USAInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China; Princeton University Plasma Physics Laboratory Princeton, NJ 08543, USAInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China; Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, ChinaJohns Hopkins University, Baltimore, MD 21211, USAInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China; CAS key Laboratory of Photovoltaic and energy conservation materials, Hefei 230031, China; Corresponding authors.Particle and heat fluxes were successfully controlled by using a continuously flowing liquid Li (FLiLi) limiter in the H-mode discharges with high plasma heating power in the Experimental Advanced Superconducting Tokamak device. There were strong interactions between the FLiLi limiter and high-power plasma with a ∼ 8.3 MW source heating power, and successively, a bright Li radiation ring was produced, which effectively decreased fuel particle recycling by approximately 50%. Due to Li efflux from FLiLi during a series of high-power discharges, an obvious real-time wall conditioning effect was produced, and fuel particle recycling further decreased. Moreover, the value of Zeff decreased from 2.3 to 1.6 due to a decrease in impurity sources; this was attributed to the accumulation of Li deposited on the first wall, which effectively protected the wall materials. The decreased recycling and impurity radiation achieved high-energy confinement plasma, and the average stored energy increased up to ∼ 290 kJ. Moreover, due to the effect of Li vapor shielding, nearly 30% plasma heat flux was dissipated before it arrived at the Li limiter. These results promote further exploration of liquid Li solutions for the critical challenge of heat flux handling and particle control in fusion power plants.http://www.sciencedirect.com/science/article/pii/S2352179122001442Liquid LiParticle fluxHeat fluxH-modeEAST |
| spellingShingle | G.Z. Zuo C.L. Li R. Maingi X.C. Meng D. Andruczyk P.J. Sun Z. Sun W. Xu M. Huang Z.L. Tang D.H. Zhang Y.J. Chen Q. Zang Y.M. Wang Y.F. Wang K. Tritz J.S. Hu Effect of continuously flowing liquid Li limiter on particle and heat fluxes during H-mode discharges in EAST Nuclear Materials and Energy Liquid Li Particle flux Heat flux H-mode EAST |
| title | Effect of continuously flowing liquid Li limiter on particle and heat fluxes during H-mode discharges in EAST |
| title_full | Effect of continuously flowing liquid Li limiter on particle and heat fluxes during H-mode discharges in EAST |
| title_fullStr | Effect of continuously flowing liquid Li limiter on particle and heat fluxes during H-mode discharges in EAST |
| title_full_unstemmed | Effect of continuously flowing liquid Li limiter on particle and heat fluxes during H-mode discharges in EAST |
| title_short | Effect of continuously flowing liquid Li limiter on particle and heat fluxes during H-mode discharges in EAST |
| title_sort | effect of continuously flowing liquid li limiter on particle and heat fluxes during h mode discharges in east |
| topic | Liquid Li Particle flux Heat flux H-mode EAST |
| url | http://www.sciencedirect.com/science/article/pii/S2352179122001442 |
| work_keys_str_mv | AT gzzuo effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT clli effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT rmaingi effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT xcmeng effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT dandruczyk effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT pjsun effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT zsun effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT wxu effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT mhuang effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT zltang effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT dhzhang effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT yjchen effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT qzang effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT ymwang effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT yfwang effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT ktritz effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast AT jshu effectofcontinuouslyflowingliquidlilimiteronparticleandheatfluxesduringhmodedischargesineast |