Heat leakage of a vertical test cryostat for superconducting cavity based on variable arranged radiation shield
文献类型：期刊论文
| 作者 | Zhang, Junhui1; Su, Hailin1 ; Jin, Shufeng2; Chen, Shuping2
|
| 刊名 | CRYOGENICS
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 99页码:1-6 |
| 关键词 | Superconducting cavity vertical test Liquid helium cryostat Heat transfer model Variable arranged radiation shield Experiment |
| ISSN号 | 0011-2275 |
| DOI | 10.1016/j.cryogenics.2019.02.004 |
| 通讯作者 | Chen, Shuping(chensp@lut.cn) |
| 英文摘要 | The vertical test cryostat, which is used to measure the cryogenic performance of a superconducting cavity is a liquid helium open vessel, and has high requirements for thermal insulation performance. The inner vessel of the cryostat is high-vacuum multilayer insulation, and the open side is multi-shield insulation. In order to further reduce the heat leakage through the cover plate of the cryostat at the open side, a variable arranged radiation shield spacing is proposed. The coupling heat transfer model was established for the cover plate, radiation shields, liquid surface and helium gas, and was verified by experiment. The influence of the radiation shields distribution on the heat leakage and the optimal radiation shield arrangement were obtained by numerical calculation. As the number of radiation shields is 11, the method of the variable arranged radiation shield, which is to arrange 7-layer radiation shields in the high temperature region and 4-layer radiation shields in the low temperature region, has a minimal heat leakage. The method can reduce the heat leakage by 4% compared with the equal spacing method. |
| WOS关键词 | DESIGN |
| 资助项目 | Chinese Academy of Science[XDA03020000] |
| WOS研究方向 | Thermodynamics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000471207100001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Chinese Academy of Science |
| 源URL | [http://119.78.100.186/handle/113462/133236]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Chen, Shuping |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Coll Petrochem Engn, Lanzhou 730050, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Junhui,Su, Hailin,Jin, Shufeng,et al. Heat leakage of a vertical test cryostat for superconducting cavity based on variable arranged radiation shield[J]. CRYOGENICS,2019,99:1-6. |
| APA | Zhang, Junhui,Su, Hailin,Jin, Shufeng,&Chen, Shuping.(2019).Heat leakage of a vertical test cryostat for superconducting cavity based on variable arranged radiation shield.CRYOGENICS,99,1-6. |
| MLA | Zhang, Junhui,et al."Heat leakage of a vertical test cryostat for superconducting cavity based on variable arranged radiation shield".CRYOGENICS 99(2019):1-6. |
入库方式： OAI收割
来源：近代物理研究所
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