Conceptual design and heat transfer performance of a flat-tile water-cooled divertor target
文献类型：期刊论文
| 作者 | LI, Lei ; Han, Le; Zi, Pengfei; Cao, Lei; Xu, Tiejun; Mou, Nanyu; Wang, Zhaoliang; Yin, Lei; Yao, Damao
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| 刊名 | PLASMA SCIENCE & TECHNOLOGY
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| 出版日期 | 2021-09-01 |
| 卷号 | 23 |
| ISSN号 | 1009-0630 |
| 关键词 | CFETR heat transfer performance parametric design and optimization HHF tests flat-tile divertor target |
| DOI | 10.1088/2058-6272/ac0689 |
| 通讯作者 | Han, Le(hanle@ipp.ac.cn) |
| 英文摘要 | The divertor target components for the Chinese fusion engineering test reactor (CFETR) and the future experimental advanced superconducting tokamak (EAST) need to remove a heat flux of up to similar to 20 MW m(-2). In view of such a high heat flux removal requirement, this study proposes a conceptual design for a flat-tile divertor target based on explosive welding and brazing technology. Rectangular water-cooled channels with a special thermal transfer structure (TTS) are designed in the heat sink to improve the flat-tile divertor target's heat transfer performance (HTP). The parametric design and optimization methods are applied to study the influence of the TTS variation parameters, including height (H), width (W*), thickness (T), and spacing (L), on the HTP. The research results show that the flat-tile divertor target's HTP is sensitive to the TTS parameter changes, and the sensitivity is T > L > W* > H. The HTP first increases and then decreases with the increase of T, L, and W* and gradually increases with the increase of H. The optimal design parameters are as follows: H = 5.5 mm, W* = 25.8 mm, T = 2.2 mm, and L = 9.7 mm. The HTP of the optimized flat-tile divertor target at different flow speeds and tungsten tile thicknesses is studied using the numerical simulation method. A flat-tile divertor mock-up is developed according to the optimized parameters. In addition, high heat flux (HHF) tests are performed on an electron beam facility to further investigate the mock-up HTP. The numerical simulation calculation results show that the optimized flat-tile divertor target has great potential for handling the steady-state heat load of 20 MW m(-2) under the tungsten tile thickness <5 mm and the flow speed >= 7 m s(-1). The heat transfer efficiency of the flat-tile divertor target with rectangular cooling channels improves by similar to 13% and similar to 30% compared to that of the flat-tile divertor target with circular cooling channels and the ITER-like monoblock, respectively. The HHF tests indicate that the flat-tile divertor mock-up can successfully withstand 1000 cycles of 20 MW m(-2) of heat load without visible deformation, damage, and HTP degradation. The surface temperature of the flat-tile divertor mock-up at the 1000th cycle is only similar to 930 degrees C. The flat-tile divertor target's HTP is greatly improved by the parametric design and optimization method, and is better than the ITER-like monoblock and the flat-tile mock-up for the WEST divertor. This conceptual design is currently being applied to the engineering design of the CFETR and EAST flat-tile divertors. |
| WOS关键词 | TUNGSTEN MONOBLOCK ; HYPERVAPOTRON STRUCTURE ; REACTOR ; IMPACT |
| 资助项目 | National MCF Energy RD Program[2018YFE0312300] ; National Key Research and Development Program of China[2017YFA0402500] ; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences[Y45ETY2302] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000678917900001 |
| 资助机构 | National MCF Energy RD Program ; National Key Research and Development Program of China ; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123176]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Han, Le |
| 作者单位 | Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | LI, Lei,Han, Le,Zi, Pengfei,et al. Conceptual design and heat transfer performance of a flat-tile water-cooled divertor target[J]. PLASMA SCIENCE & TECHNOLOGY,2021,23. |
| APA | LI, Lei.,Han, Le.,Zi, Pengfei.,Cao, Lei.,Xu, Tiejun.,...&Yao, Damao.(2021).Conceptual design and heat transfer performance of a flat-tile water-cooled divertor target.PLASMA SCIENCE & TECHNOLOGY,23. |
| MLA | LI, Lei,et al."Conceptual design and heat transfer performance of a flat-tile water-cooled divertor target".PLASMA SCIENCE & TECHNOLOGY 23(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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