ShanghaiTech University Knowledge Management System
| Analysis of vortex characteristics and energy losses in a cryogenic hydrogen turbo-expander for a 5 t/d hydrogen liquefier | |
| 2023 | |
| 发表期刊 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (IF:8.1[JCR-2023],7.3[5-Year]) |
| ISSN | 0360-3199 |
| EISSN | 1879-3487 |
| 卷号 | 55页码:1286-1298 |
| 发表状态 | 已发表 |
| DOI | 10.1016/j.ijhydene.2023.11.183 |
| 摘要 | The cryogenic hydrogen turbo-expander (CHTB) is the most core component which determines the dependability and efficiency of hydrogen liquefiers. In present study, CFD method are adopted to simulate the internal flow field inside a CHTB for a 5 t/d hydrogen liquefier. The Ω method and entropy generation method are implemented to identify vortex structures and calculate energy losses. The results show tip leakage vortex is the primary vortex and causes energy losses through strong fluid shear but not rotation effect. The turbulent dissipation is the main energy dissipation. The total entropy generation of CHTB impeller is significantly higher than nozzle because of tip clearances. As tip clearances increase from 0% to 1.6%, total entropy generation increases by 83%, and output shaft power and isentropic efficiency reduce by 9% and 6% respectively. Working conditions mainly affect the inlet angle of attack and significantly impact vortex characteristics and energy losses in the CHTB. © 2023 Hydrogen Energy Publications LLC |
| 关键词 | Angle of attack Computational fluid dynamics Cryogenics Entropy Shear flow Vortex flow CFD method Core components Entropy generation Hydrogen liquefaction Hydrogen turbo-expander Tip clearance Total entropy Turbo expanders Vortex characteristics Vortex energy |
| URL | 查看原文 |
| 收录类别 | EI ; SCI |
| 语种 | 英语 |
| 资助项目 | China Postdoctoral Science Founda-tion[2021M693214] ; CASHIPS Director's Fund[YZJJ2021QN29] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
| WOS类目 | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
| WOS记录号 | WOS:001146996400001 |
| 出版者 | Elsevier Ltd |
| EI入藏号 | 20234915146672 |
| EI主题词 | Energy dissipation |
| EI分类号 | 525.4 Energy Losses (industrial and residential) ; 631.1 Fluid Flow, General ; 641.1 Thermodynamics ; 644.4 Cryogenics ; 651.1 Aerodynamics, General ; 723.5 Computer Applications ; 931.1 Mechanics |
| 原始文献类型 | Article in Press |
| 引用统计 | 正在获取...
|
| 文献类型 | 期刊论文 |
| 条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/347914 |
| 专题 | 大科学中心_PI研究组_欧阳峥嵘组 |
| 通讯作者 | Li, Xiaoming; Li, Junjie |
| 作者单位 | 1.Chinese Acad Sci, High Magnet Field Lab, HFIPS, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.High Magnet Field Lab Anhui Prov, Hefei 230031, Peoples R China 4.Shanghai Tech Univ, Shanghai 201210, Peoples R China 5.Anhui Wanrui Cold Power Technol Co Ltd, Hefei 230088, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiaoming,Zhang, Kai,Li, Junjie,et al. Analysis of vortex characteristics and energy losses in a cryogenic hydrogen turbo-expander for a 5 t/d hydrogen liquefier[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2023,55:1286-1298. |
| APA | Li, Xiaoming,Zhang, Kai,Li, Junjie,Ouyang, Zhengrong,&Shi, Tongqiang.(2023).Analysis of vortex characteristics and energy losses in a cryogenic hydrogen turbo-expander for a 5 t/d hydrogen liquefier.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,55,1286-1298. |
| MLA | Li, Xiaoming,et al."Analysis of vortex characteristics and energy losses in a cryogenic hydrogen turbo-expander for a 5 t/d hydrogen liquefier".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 55(2023):1286-1298. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
修改评论
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。