CONSTRAINED MULTI-OBJECTIVE OPTIMIZATION OF HELIUM LIQUEFACTION CYCLE
文献类型：期刊论文
| 作者 | Shi, Min1,2; Shi, Tongqiang3; Shi, Lei1 ; Ouyang, Zhengrong4; Li, Junjie1,2
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| 刊名 | THERMAL SCIENCE
 |
| 出版日期 | 2024 |
| 卷号 | 28 |
| 关键词 | Collins cycle helium cryo-plants exergy efficiency constrained multi-objective optimization stability |
| ISSN号 | 0354-9836 |
| DOI | 10.2298/TSCI230626278S |
| 通讯作者 | Li, Junjie(shimin@mail.ustc.edu.cn) |
| 英文摘要 | The helium cryo-plant is an indispensable subsystem for the application of low temperature superconductors in large-scale scientific facilities. However, it is important to note that the cryo-plant requires stable operation and consumes a substantial amount of electrical power for its operation. Additionally, the construction of the cryo-plant incurs significant economic costs. To achieve the necessary cooling capacity while reducing power consumption and ensuring stability and economic feasibility, constrained multi-objective optimization is performed using the interior point method in this work. The Collins cycle, which uses liquid nitrogen precooling, is selected as the representative helium liquefaction cycle for optimization. The discharge pressure of the compressor, flow ratio of turbines, and effectiveness of heat exchangers are taken as decision parameters. Two objective parameters, cycle exergy efficiency, eta ex,cycle , and liquefaction rate, m L , are chosen, and the wheel tip speed of turbines and UA of heat exchangers are selected as stability and economic cost constraints, , respectively. The technique for order of preference by similarity to the ideal solution (TOPSIS) is utilized to select the final optimal solution from the Pareto frontier of constrained multi-objective optimization. Compared to the constrained optimization of eta ex,cycle , the TOPSIS result increases the m L by 23.674%, but there is an 8.162% reduction in eta ex,cycle . Similarly, compared to the constrained optimization of m L , the TOPSIS result increases the eta ex,cycle by 57.333%, but a 10.821% reduction in m L is observed. This approach enables the design of helium cryo-plants with considerations for cooling capacity, exergy efficiency, economic cost, and stability. Furthermore, the wheel tip speed and UA of heat exchangers of the solutions in the Pareto frontier are also studied. |
| WOS关键词 | PERFORMANCE ; PARAMETERS ; DESIGN |
| 资助项目 | Hefei Comprehensive National Science Center ; High Magnetic Field Laboratory of Anhui Province |
| WOS研究方向 | Thermodynamics |
| 语种 | 英语 |
| WOS记录号 | WOS:001305565800002 |
| 出版者 | VINCA INST NUCLEAR SCI |
| 资助机构 | Hefei Comprehensive National Science Center ; High Magnetic Field Laboratory of Anhui Province |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135064]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Li, Junjie |
| 作者单位 | 1.Chinese Acad Sci, High Magnet Field Lab, HFIPS, Hefei, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei, Peoples R China 3.Anhui Wanrui Cold Power Technol Co Ltd, Hefei, Peoples R China 4.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Min,Shi, Tongqiang,Shi, Lei,et al. CONSTRAINED MULTI-OBJECTIVE OPTIMIZATION OF HELIUM LIQUEFACTION CYCLE[J]. THERMAL SCIENCE,2024,28. |
| APA | Shi, Min,Shi, Tongqiang,Shi, Lei,Ouyang, Zhengrong,&Li, Junjie.(2024).CONSTRAINED MULTI-OBJECTIVE OPTIMIZATION OF HELIUM LIQUEFACTION CYCLE.THERMAL SCIENCE,28. |
| MLA | Shi, Min,et al."CONSTRAINED MULTI-OBJECTIVE OPTIMIZATION OF HELIUM LIQUEFACTION CYCLE".THERMAL SCIENCE 28(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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