Advances in physics understanding of high poloidal beta regime toward steady-state operation of CFETR
文献类型：期刊论文
| 作者 | Qian, J. P.7 ; Garofalo, A. M.6; Gong, X. Z.7; Huang, J.7; Ding, S. Y.5,7; Holcomb, C. T.4; Hyatt, A.6; Ferron, J.6; McClenaghan, J.6; McKee, G.3
|
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 28 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/5.0032490 |
| 通讯作者 | Qian, J. P.(jpqian@ipp.ac.cn) |
| 英文摘要 | Experimental and modeling investigations of high beta (p) scenarios on DIII-D and EAST tokamaks show advantages in high energy confinement, avoidance of n=1 MHD, and core-edge integration with reduced heat flux, making this scenario an attractive option for China Fusion Engineering Test Reactor steady-state operation. Experiments show that plasmas with high confinement and high density can be achieved with neutral beam injection on DIII-D (beta (p) similar to 2.2, beta (N) similar to 3.5, f(BS) similar to 50%, f(Gw) similar to 1.0, and H-98y2 similar to 1.5) and pure RF power on EAST (beta (P) similar to 2.0, beta (N) similar to 1.6, f(BS) similar to 50%, f(Gw) similar to 0.8, and H-98y2 > 1.3). By tailoring the current density profile, a q-profile with local (off-axis) negative shear is achieved, which yields improved confinement and MHD stability. Transport analysis and simulation suggest that the combination of a high density gradient and high Shafranov shift allows turbulence stabilization and higher confinement. Using on-axis Electron Cyclotron Heating injection, tungsten accumulation is avoided on EAST, and this is reproduced in modeling. Reduced heat flux (by > 40%) and maintenance of high core confinement is achieved with active feedback control of the radiated divertor, an important result for long pulse operation in tokamaks. The improved physics understanding and validated modeling tools are used to design a 1GW steady-state scenario for CFETR. |
| 资助项目 | National MCF Energy RD Program[2019YFE03040000] ; National MCF Energy RD Program[2019YFE03020004] ; National Natural Science Foundation of China[11975274] ; National Natural Science Foundation of China[11975276] ; Excellence Program of Hefei Science Center CAS[2019HSC-UE013] ; Anhui Provincial Natural Science Foundation[2008085J04] ; U.S. Department of Energy (DOE)[DE-FC02-04ER54698] ; agency of the United States Government |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AMER INST PHYSICS |
| WOS记录号 | WOS:000640519300001 |
| 资助机构 | National MCF Energy RD Program ; National Natural Science Foundation of China ; Excellence Program of Hefei Science Center CAS ; Anhui Provincial Natural Science Foundation ; U.S. Department of Energy (DOE) ; agency of the United States Government |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/121762]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Qian, J. P. |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 2.Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA 3.Univ Wisconsin Madison, Dept Engn Phys, 1500 Engn Dr, Madison, WI 53706 USA 4.Lawrence Livermore Natl Lab, Livermore, CA 94551 USA 5.Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA 6.Gen Atom, POB 85608, San Diego, CA 92186 USA 7.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qian, J. P.,Garofalo, A. M.,Gong, X. Z.,et al. Advances in physics understanding of high poloidal beta regime toward steady-state operation of CFETR[J]. PHYSICS OF PLASMAS,2021,28. |
| APA | Qian, J. P..,Garofalo, A. M..,Gong, X. Z..,Huang, J..,Ding, S. Y..,...&Lao, L. L..(2021).Advances in physics understanding of high poloidal beta regime toward steady-state operation of CFETR.PHYSICS OF PLASMAS,28. |
| MLA | Qian, J. P.,et al."Advances in physics understanding of high poloidal beta regime toward steady-state operation of CFETR".PHYSICS OF PLASMAS 28(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。