Impact of external heat transfer on the performance of a cold compressor used in superfluid helium system
文献类型：期刊论文
| 作者 | Dong, Xinbo1,2; Wu, Jihao1,2; Li, Junjie3 ; Xu, Xiangdong2; Su, He1,2; Shang, Jin1,2; Li, Qing1,2; Gong, Linghui1,2
|
| 刊名 | CRYOGENICS
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 110 |
| ISSN号 | 0011-2275 |
| 关键词 | Cold compressor Superfluid helium External heat transfer Performance Tip clearance leakage |
| DOI | 10.1016/j.cryogenics.2020.103141 |
| 通讯作者 | Wu, Jihao(wujihao@mail.ipc.ac.cn) |
| 英文摘要 | Cold compressors are the core components needed for the development of a facility for large-capacity refrigeration at superfluid helium temperature. The compressor impeller operates at extremely low temperature and low pressure which involves a performance penalty due to heat transfer from the warm side of the machine to the cold side and thus affects the recycle of the cold exergy downstream. To investigate the heat transfer effect on cold compressor performance, a conjugate heat transfer analysis is performed with commercial CFD solver and is then validated with the experimental data tested at different rotation speed. Then a series of configurations of different thermal boundaries are analyzed to investigate the influence of heat transfer on performance. The simulated results show that the external heat transfer has a negative impact on pressure distribution. The helium gas inside the impeller flow domain is more sensitive to external heat leakage comparing with that inside the diffuser flow. More than that, the mass flow leakage through blade tip clearance is highly affected by the external heat transfer, which counts for the performance degradation. |
| WOS关键词 | RADIAL INFLOW TURBINE ; CENTRIFUGAL-COMPRESSOR |
| 资助项目 | Fund of the Ministry of Finance of China[ZDYZ2014-1] |
| WOS研究方向 | Thermodynamics ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000571177600002 |
| 资助机构 | Fund of the Ministry of Finance of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/104199]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wu, Jihao |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Tech Inst Phys & Chem, State Key Lab Technol Space Cryogen Propellants, Beijing, Peoples R China 3.Chinese Acad Sci, Dept Magnet Sci & Technol, High Magnet Field Lab, Hefei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Xinbo,Wu, Jihao,Li, Junjie,et al. Impact of external heat transfer on the performance of a cold compressor used in superfluid helium system[J]. CRYOGENICS,2020,110. |
| APA | Dong, Xinbo.,Wu, Jihao.,Li, Junjie.,Xu, Xiangdong.,Su, He.,...&Gong, Linghui.(2020).Impact of external heat transfer on the performance of a cold compressor used in superfluid helium system.CRYOGENICS,110. |
| MLA | Dong, Xinbo,et al."Impact of external heat transfer on the performance of a cold compressor used in superfluid helium system".CRYOGENICS 110(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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