Performance of Wire Springs as Extended Heat Transfer Surface for Compact Heat Exchangers
Use of thin metal wire structures as a new type of extended heat transfer surface is proposed. As one of the most basic shapes of such wire structures, heat transfer performance of spring shaped fins is experimentally investigated under relatively low Reynolds number conditions. The averaged heat tr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
The Japan Society of Mechanical Engineers
2006-10-01
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| Series: | Journal of Thermal Science and Technology |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jtst/1/2/1_2_78/_pdf/-char/en |
| _version_ | 1818320255343132672 |
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| author | Hiroshi IWAI Soushi KAWAKAMI Kenjiro SUZUKI Junichi TSUJII Tetsuo ABIKO |
| author_facet | Hiroshi IWAI Soushi KAWAKAMI Kenjiro SUZUKI Junichi TSUJII Tetsuo ABIKO |
| author_sort | Hiroshi IWAI |
| collection | DOAJ |
| description | Use of thin metal wire structures as a new type of extended heat transfer surface is proposed. As one of the most basic shapes of such wire structures, heat transfer performance of spring shaped fins is experimentally investigated under relatively low Reynolds number conditions. The averaged heat transfer coefficient is evaluated by a single-blow method while the pressure drop is measured at a steady state flow condition. The effects of the geometric parameters such as the wire diameter, the spring pitch and the pitch ratio were systematically examined and the obtained data were compared with that of a conventional offset fin, which is commercially available. It was found that the geometric parameters of the spring fins and the arrangement of spring fins in the test section affect their heat transfer performance. Some types of spring fins showed better heat transfer performance than a conventional offset fin, when they are evaluated in terms of the total heat transfer at a constant pumping power. |
| first_indexed | 2024-12-13T10:22:06Z |
| format | Article |
| id | doaj.art-68559b5357e74334b36ab2feab539fcc |
| institution | Directory Open Access Journal |
| issn | 1880-5566 |
| language | English |
| last_indexed | 2024-12-13T10:22:06Z |
| publishDate | 2006-10-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Thermal Science and Technology |
| spelling | doaj.art-68559b5357e74334b36ab2feab539fcc2022-12-21T23:51:10ZengThe Japan Society of Mechanical EngineersJournal of Thermal Science and Technology1880-55662006-10-0112788910.1299/jtst.1.78jtstPerformance of Wire Springs as Extended Heat Transfer Surface for Compact Heat ExchangersHiroshi IWAI0Soushi KAWAKAMI1Kenjiro SUZUKI2Junichi TSUJII3Tetsuo ABIKO4Department of Aeronautics and Astronautics, Kyoto UniversityDepartment of Aeronautics and Astronautics, Kyoto UniversityDepartment of Machinery and Control Systems, Shibaura Institute of TechnologySumitomo Precision Products Co., LTD.Sumitomo Precision Products Co., LTD.Use of thin metal wire structures as a new type of extended heat transfer surface is proposed. As one of the most basic shapes of such wire structures, heat transfer performance of spring shaped fins is experimentally investigated under relatively low Reynolds number conditions. The averaged heat transfer coefficient is evaluated by a single-blow method while the pressure drop is measured at a steady state flow condition. The effects of the geometric parameters such as the wire diameter, the spring pitch and the pitch ratio were systematically examined and the obtained data were compared with that of a conventional offset fin, which is commercially available. It was found that the geometric parameters of the spring fins and the arrangement of spring fins in the test section affect their heat transfer performance. Some types of spring fins showed better heat transfer performance than a conventional offset fin, when they are evaluated in terms of the total heat transfer at a constant pumping power.https://www.jstage.jst.go.jp/article/jtst/1/2/1_2_78/_pdf/-char/enwire springextended heat transfer surfacecompact heat exchangerlow reynolds numberexperimentmodified single blow method |
| spellingShingle | Hiroshi IWAI Soushi KAWAKAMI Kenjiro SUZUKI Junichi TSUJII Tetsuo ABIKO Performance of Wire Springs as Extended Heat Transfer Surface for Compact Heat Exchangers Journal of Thermal Science and Technology wire spring extended heat transfer surface compact heat exchanger low reynolds number experiment modified single blow method |
| title | Performance of Wire Springs as Extended Heat Transfer Surface for Compact Heat Exchangers |
| title_full | Performance of Wire Springs as Extended Heat Transfer Surface for Compact Heat Exchangers |
| title_fullStr | Performance of Wire Springs as Extended Heat Transfer Surface for Compact Heat Exchangers |
| title_full_unstemmed | Performance of Wire Springs as Extended Heat Transfer Surface for Compact Heat Exchangers |
| title_short | Performance of Wire Springs as Extended Heat Transfer Surface for Compact Heat Exchangers |
| title_sort | performance of wire springs as extended heat transfer surface for compact heat exchangers |
| topic | wire spring extended heat transfer surface compact heat exchanger low reynolds number experiment modified single blow method |
| url | https://www.jstage.jst.go.jp/article/jtst/1/2/1_2_78/_pdf/-char/en |
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