Improved heat transfer and friction correlations of aluminum offset-strip fin heat exchangers for helium cryogenic applications
文献类型：期刊论文
| 作者 | Jiang, Qingfeng1; Pan, Chongyao1; Chen, Yidan1; Zhang, Qiyong2 ; Tang, Yanbing3; Gu, Jiayang3; Aleksandr, Pichushkin1,4
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| 刊名 | APPLIED THERMAL ENGINEERING
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| 出版日期 | 2021-06-25 |
| 卷号 | 192 |
| ISSN号 | 1359-4311 |
| 关键词 | Helium refrigerator Performance correlation Offset strip fin Heat transfer Flow friction |
| DOI | 10.1016/j.applthermaleng.2021.116892 |
| 通讯作者 | Jiang, Qingfeng(jiang_qingfeng@163.com) |
| 英文摘要 | Aluminum plate-fin heat exchangers (PFHEs) with offset-strip fins (OSFs) are widely used in modern helium liquefaction/refrigeration systems characterized by enhanced heat transfer abilities and high compactness. This study numerically and experimentally investigated the thermal-hydraulic characteristics of cryogenic helium gas flowing through various OSF channels. Through the comparative tests conducted by well-validated numerical model as well as the contrast experiments respectively at room and nitrogen liquefaction temperatures, the results indicated that the OSF performance was not only affected by fin geometrical structures, but also deeply influenced by additional effect factors under actual cryogenic operating conditions. Based on the orthogonal table with 0.077 <=alpha <= 1.103, 0.008 <=delta <= 0.15 and 0.029 <=gamma <= 0.333, the heat transfer and pressure drop performance of OSFs was systematically studied at a wide range of Re number (200 <= Re <= 12000) in three common refrigeration stages (300 K @ 12 bar, 77 K @ 6 bar and 20 K @ 2 bar). To improve the prediction accuracy of the correlations at low temperatures, the non-dimensional Pr Number and iteratively-solved fin efficiency eta(f) that considering the thermophysical property variations of fluid and metal were introduced in the correlations of Colburn j and Fanning friction f factors. Compared with the experimental data, the proposed model had strong robustness of prediction ability, with the predicted errors of 11.33% and 22.49% respectively for j and f factors. Additionally, the effect of Pr number and eta(f) occupied different weights in the j factors from laminar to turbulent flow. The sensitivity of the heat transfer performance with respect to each condition parameter was also discussed. Different from the most of the existing correlations derived from the fitted data based on common steam-to-air tests, the proposed correlations were more qualified for predicting the thermal-hydraulic performance of OSF channels in PFHEs through the cool-down process in helium refrigerators. |
| WOS关键词 | THERMAL-HYDRAULIC CHARACTERISTICS ; PRESSURE-DROP ; FLOW ; PERFORMANCE ; OPTIMIZATION ; CHANNEL ; MODEL |
| 资助项目 | National Key Research and Development Program of China[2018YFC0310400] ; Natural Science Foundation of Jiangsu Province of China[BK20190969] ; High-level Innovation and Entrepreneurship Talents Introduction Program of Jiangsu Province of China ; Zhenjiang Key Laboratory of Marine Power Equipment Performance[SS2018006] ; High-tech Ship Research Project of Ministry of Industry and Information Technology of China[473] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000652823700018 |
| 资助机构 | National Key Research and Development Program of China ; Natural Science Foundation of Jiangsu Province of China ; High-level Innovation and Entrepreneurship Talents Introduction Program of Jiangsu Province of China ; Zhenjiang Key Laboratory of Marine Power Equipment Performance ; High-tech Ship Research Project of Ministry of Industry and Information Technology of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122617]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Jiang, Qingfeng |
| 作者单位 | 1.Jiangsu Univ Sci & Technol, Sch Energy & Power, Zhenjiang 212003, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Jiangsu Univ Sci & Technol, Marine Equipment & Technol Inst, Zhenjiang 212003, Jiangsu, Peoples R China 4.Ogarev Mordovia State Univ, Inst Mech & Power Engn, Saransk 430005, Russia |
| 推荐引用方式 GB/T 7714 | Jiang, Qingfeng,Pan, Chongyao,Chen, Yidan,et al. Improved heat transfer and friction correlations of aluminum offset-strip fin heat exchangers for helium cryogenic applications[J]. APPLIED THERMAL ENGINEERING,2021,192. |
| APA | Jiang, Qingfeng.,Pan, Chongyao.,Chen, Yidan.,Zhang, Qiyong.,Tang, Yanbing.,...&Aleksandr, Pichushkin.(2021).Improved heat transfer and friction correlations of aluminum offset-strip fin heat exchangers for helium cryogenic applications.APPLIED THERMAL ENGINEERING,192. |
| MLA | Jiang, Qingfeng,et al."Improved heat transfer and friction correlations of aluminum offset-strip fin heat exchangers for helium cryogenic applications".APPLIED THERMAL ENGINEERING 192(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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