Air-side Heat Transfer and Pressure Drop Characteristics of Louver-finned Aluminum Heat Exchangers at Different Inclination Angles
The effect of inclination angle on the heat transfer and pressure drop characteristics of brazed aluminum heat exchangers having louvered fins is experimentally investigated. Three samples having different fin pitches (1.25, 1,5 and 2.0 mm) were tested. Results show that heat transfer coefficients a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2009-12-01
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| Series: | Journal of Thermal Science and Technology |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jtst/4/3/4_3_350/_pdf/-char/en |
| _version_ | 1828854394676838400 |
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| author | Nae-Hyun KIM Do-Young KIM Yong-Min CHOI Ho-Won BYUN |
| author_facet | Nae-Hyun KIM Do-Young KIM Yong-Min CHOI Ho-Won BYUN |
| author_sort | Nae-Hyun KIM |
| collection | DOAJ |
| description | The effect of inclination angle on the heat transfer and pressure drop characteristics of brazed aluminum heat exchangers having louvered fins is experimentally investigated. Three samples having different fin pitches (1.25, 1,5 and 2.0 mm) were tested. Results show that heat transfer coefficients are not affected by the inclination angle. Friction factors, however, increase as the inclination angle increases, with negligible difference between the forward and the backward inclination. Both the heat transfer coefficient and the friction factor are the smallest at Fp = 1.5 mm, followed by 2.0 mm and 1.25 mm. Possible explanation is provided considering the louver layout. Comparison of the present data with existing correlations is also made. |
| first_indexed | 2024-12-13T00:33:14Z |
| format | Article |
| id | doaj.art-872e909af14d49f4b082fa1c1bbd93bd |
| institution | Directory Open Access Journal |
| issn | 1880-5566 |
| language | English |
| last_indexed | 2024-12-13T00:33:14Z |
| publishDate | 2009-12-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Thermal Science and Technology |
| spelling | doaj.art-872e909af14d49f4b082fa1c1bbd93bd2022-12-22T00:05:16ZengThe Japan Society of Mechanical EngineersJournal of Thermal Science and Technology1880-55662009-12-014335036110.1299/jtst.4.350jtstAir-side Heat Transfer and Pressure Drop Characteristics of Louver-finned Aluminum Heat Exchangers at Different Inclination AnglesNae-Hyun KIM0Do-Young KIM1Yong-Min CHOI2Ho-Won BYUN3Department of Mechanical Engineering, University of IncheonDepartment of Mechanical Engineering, University of IncheonDepartment of Mechanical Engineering, University of IncheonDepartment of Mechanical Engineering, University of IncheonThe effect of inclination angle on the heat transfer and pressure drop characteristics of brazed aluminum heat exchangers having louvered fins is experimentally investigated. Three samples having different fin pitches (1.25, 1,5 and 2.0 mm) were tested. Results show that heat transfer coefficients are not affected by the inclination angle. Friction factors, however, increase as the inclination angle increases, with negligible difference between the forward and the backward inclination. Both the heat transfer coefficient and the friction factor are the smallest at Fp = 1.5 mm, followed by 2.0 mm and 1.25 mm. Possible explanation is provided considering the louver layout. Comparison of the present data with existing correlations is also made.https://www.jstage.jst.go.jp/article/jtst/4/3/4_3_350/_pdf/-char/enlouver finbrazed aluminum heat exchangerflat tubeinclination angle |
| spellingShingle | Nae-Hyun KIM Do-Young KIM Yong-Min CHOI Ho-Won BYUN Air-side Heat Transfer and Pressure Drop Characteristics of Louver-finned Aluminum Heat Exchangers at Different Inclination Angles Journal of Thermal Science and Technology louver fin brazed aluminum heat exchanger flat tube inclination angle |
| title | Air-side Heat Transfer and Pressure Drop Characteristics of Louver-finned Aluminum Heat Exchangers at Different Inclination Angles |
| title_full | Air-side Heat Transfer and Pressure Drop Characteristics of Louver-finned Aluminum Heat Exchangers at Different Inclination Angles |
| title_fullStr | Air-side Heat Transfer and Pressure Drop Characteristics of Louver-finned Aluminum Heat Exchangers at Different Inclination Angles |
| title_full_unstemmed | Air-side Heat Transfer and Pressure Drop Characteristics of Louver-finned Aluminum Heat Exchangers at Different Inclination Angles |
| title_short | Air-side Heat Transfer and Pressure Drop Characteristics of Louver-finned Aluminum Heat Exchangers at Different Inclination Angles |
| title_sort | air side heat transfer and pressure drop characteristics of louver finned aluminum heat exchangers at different inclination angles |
| topic | louver fin brazed aluminum heat exchanger flat tube inclination angle |
| url | https://www.jstage.jst.go.jp/article/jtst/4/3/4_3_350/_pdf/-char/en |
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