Simulation studies of divertor power exhaust with neon seeding for CFETR with GW-level fusion power
文献类型：期刊论文
| 作者 | Liu, X. J.1; Xu, G. L.2; Ding, R.1 ; Jia, G. Z.1; Sang, C. F.3; Si, H.1; Nian, F. F.1; Yang, Z. S.1; Li, G. Q.1; Chan, V. S.4
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| 刊名 | PHYSICS OF PLASMAS
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| 出版日期 | 2020-09-01 |
| 卷号 | 27 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/5.0014889 |
| 通讯作者 | Ding, R.(rding@ipp.ac.cn) |
| 英文摘要 | A conventional single null divertor geometry has been proposed for Chinese fusion engineering testing reactor (CFETR) with fusion power up to gigawatt level. Modeling using the SOLPS5.0 code package shows promising results for divertor power exhaust by seeding with neon (Ne) and deuterium (D-2). Partial detachment for both inner and outer divertor targets can be achieved with a peak heat load lower than 3MW/m(2). The effective ion charge number, Z(eff), at the core boundary is below three, which can be further reduced by increasing the upstream D-2 puffing rate. A higher D-2 puffing rate helps to increase electron density (n(e)) in scrape-off layer (SOL) and the impurity screening ability. Based on the SOLPS modeling results, the lifetime of tungsten (W) divertor targets has been estimated by using the DIVIMP code, which indicates that W sputtering is mainly contributed by Ne ions at a far SOL region due to high electron and ion temperature (T-e and T-i) there. Upstream D-2 puffing can reduce the W erosion rate and W impurity concentration inside the separatrix due to decreasing T-e and T-i at the far SOL region. The modeling results show a viable operation regime for the CFETR divertor. |
| WOS关键词 | ITER ; PHYSICS |
| 资助项目 | National Key Research and Development Program of China[2017YFE0300500] ; National Key Research and Development Program of China[2017YFE0301300] ; National Nature Science Foundation of China[11861131010] ; National Nature Science Foundation of China[11675218] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY-SLH010] ; CASHIPS Director's Fund[BJPY2019B01] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AMER INST PHYSICS |
| WOS记录号 | WOS:000577129400001 |
| 资助机构 | National Key Research and Development Program of China ; National Nature Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; CASHIPS Director's Fund |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/104576]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ding, R. |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 3.Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China 4.Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, X. J.,Xu, G. L.,Ding, R.,et al. Simulation studies of divertor power exhaust with neon seeding for CFETR with GW-level fusion power[J]. PHYSICS OF PLASMAS,2020,27. |
| APA | Liu, X. J..,Xu, G. L..,Ding, R..,Jia, G. Z..,Sang, C. F..,...&Gao, X..(2020).Simulation studies of divertor power exhaust with neon seeding for CFETR with GW-level fusion power.PHYSICS OF PLASMAS,27. |
| MLA | Liu, X. J.,et al."Simulation studies of divertor power exhaust with neon seeding for CFETR with GW-level fusion power".PHYSICS OF PLASMAS 27(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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