Study on Heat Transfer Characteristics of Multiple Micro-jet Impinging Heat Sink of a Cylindrical Fin
A novel multiple micro-jet impinging cylindrical fin heat sink was constructed. The heat sink was designed as a sandwich structure with a compact structure, where the upper part was an air chamber and the middle part was a jet orifice plate. In addition, a return channel was arranged on the jet orif...
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| Format: | Article |
| Language: | zho |
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Journal of Refrigeration Magazines Agency Co., Ltd.
2023-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2023.03.103 |
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| author | Sun Jian Du Haiquan Li Zhiwei Wang Luojian Zhong Ming |
| author_facet | Sun Jian Du Haiquan Li Zhiwei Wang Luojian Zhong Ming |
| author_sort | Sun Jian |
| collection | DOAJ |
| description | A novel multiple micro-jet impinging cylindrical fin heat sink was constructed. The heat sink was designed as a sandwich structure with a compact structure, where the upper part was an air chamber and the middle part was a jet orifice plate. In addition, a return channel was arranged on the jet orifice plate, which reduced the influence of the transverse flow on the jet impingement heat transfer. At the bottom was a gas chamber, which was equipped with a cylindrical fin plate. Cylindrical fins can increase the heat transfer area and enhance the fluid disturbance to enforce heat transfer. The effects of Reynolds number, heat flux, and height-diameter ratio on the heat transfer characteristics of the heat sink were studied using experimental and numerical methods. The results show that a cooled surface with a cylindrical fin has a lower temperature, and the average convective heat transfer coefficient of the cooled surface increases by 1%–3% compared with that of a surface without a fin at jet Re of 1596–2 874; the jet impact heights H were 4 mm, 6 mm, and 8 mm. As the Re increases, the heat transfer performance gradually improves. When the Re of the jet was 2 874, the maximum average convective heat transfer coefficient of the cooled surface of the cylindrical fin plate reached 1 360 W/(m2?K). |
| format | Article |
| id | doaj-art-9cfd740486db4707a2b1d5e466eed39e |
| institution | DOAJ |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2023-01-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
| record_format | Article |
| series | Zhileng xuebao |
| spelling | doaj-art-9cfd740486db4707a2b1d5e466eed39e2025-08-20T02:47:13ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392023-01-014466501718Study on Heat Transfer Characteristics of Multiple Micro-jet Impinging Heat Sink of a Cylindrical FinSun JianDu HaiquanLi ZhiweiWang LuojianZhong MingA novel multiple micro-jet impinging cylindrical fin heat sink was constructed. The heat sink was designed as a sandwich structure with a compact structure, where the upper part was an air chamber and the middle part was a jet orifice plate. In addition, a return channel was arranged on the jet orifice plate, which reduced the influence of the transverse flow on the jet impingement heat transfer. At the bottom was a gas chamber, which was equipped with a cylindrical fin plate. Cylindrical fins can increase the heat transfer area and enhance the fluid disturbance to enforce heat transfer. The effects of Reynolds number, heat flux, and height-diameter ratio on the heat transfer characteristics of the heat sink were studied using experimental and numerical methods. The results show that a cooled surface with a cylindrical fin has a lower temperature, and the average convective heat transfer coefficient of the cooled surface increases by 1%–3% compared with that of a surface without a fin at jet Re of 1596–2 874; the jet impact heights H were 4 mm, 6 mm, and 8 mm. As the Re increases, the heat transfer performance gradually improves. When the Re of the jet was 2 874, the maximum average convective heat transfer coefficient of the cooled surface of the cylindrical fin plate reached 1 360 W/(m2?K).http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2023.03.103enhanced heat transferjet impingement arrayreturn structureheat sink with cylindrical finnumerical simulation |
| spellingShingle | Sun Jian Du Haiquan Li Zhiwei Wang Luojian Zhong Ming Study on Heat Transfer Characteristics of Multiple Micro-jet Impinging Heat Sink of a Cylindrical Fin Zhileng xuebao enhanced heat transfer jet impingement array return structure heat sink with cylindrical fin numerical simulation |
| title | Study on Heat Transfer Characteristics of Multiple Micro-jet Impinging Heat Sink of a Cylindrical Fin |
| title_full | Study on Heat Transfer Characteristics of Multiple Micro-jet Impinging Heat Sink of a Cylindrical Fin |
| title_fullStr | Study on Heat Transfer Characteristics of Multiple Micro-jet Impinging Heat Sink of a Cylindrical Fin |
| title_full_unstemmed | Study on Heat Transfer Characteristics of Multiple Micro-jet Impinging Heat Sink of a Cylindrical Fin |
| title_short | Study on Heat Transfer Characteristics of Multiple Micro-jet Impinging Heat Sink of a Cylindrical Fin |
| title_sort | study on heat transfer characteristics of multiple micro jet impinging heat sink of a cylindrical fin |
| topic | enhanced heat transfer jet impingement array return structure heat sink with cylindrical fin numerical simulation |
| url | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2023.03.103 |
| work_keys_str_mv | AT sunjian studyonheattransfercharacteristicsofmultiplemicrojetimpingingheatsinkofacylindricalfin AT duhaiquan studyonheattransfercharacteristicsofmultiplemicrojetimpingingheatsinkofacylindricalfin AT lizhiwei studyonheattransfercharacteristicsofmultiplemicrojetimpingingheatsinkofacylindricalfin AT wangluojian studyonheattransfercharacteristicsofmultiplemicrojetimpingingheatsinkofacylindricalfin AT zhongming studyonheattransfercharacteristicsofmultiplemicrojetimpingingheatsinkofacylindricalfin |