Experimental characterization of thermal hydraulic performance of louvered brazed plate fin heat exchangers
Louvered fins are commonly used in compact heat exchangers to increase the surface area, turbulence, and initiate new boundary layer growth required to improve the heat transfer performance without a significant increase in pressure drop compared with other fins. An experimental study on the air si...
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| Format: | Article |
| Language: | English |
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Universidad de Antioquia
2015-02-01
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| Series: | Revista Facultad de Ingeniería Universidad de Antioquia |
| Subjects: | |
| Online Access: | https://revistas.udea.edu.co/index.php/ingenieria/article/view/19136 |
| _version_ | 1797861757402742784 |
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| author | Antonio Bula-Silvera John Turizo-Santos Oscar Barros-Ballesteros Armando Fontalvo-Lascano Ricardo Vasquez-Padilla |
| author_facet | Antonio Bula-Silvera John Turizo-Santos Oscar Barros-Ballesteros Armando Fontalvo-Lascano Ricardo Vasquez-Padilla |
| author_sort | Antonio Bula-Silvera |
| collection | DOAJ |
| description |
Louvered fins are commonly used in compact heat exchangers to increase the surface area, turbulence, and initiate new boundary layer growth required to improve the heat transfer performance without a significant increase in pressure drop compared with other fins. An experimental study on the air side heat transfer and pressure drop characteristics for a louvered fin with symmetrical pattern in brazed plate heat exchangers has been performed. Reynolds numbers ranged from 350 – 1270, based on the louver pitch while a constant 1.82 m3/h water flow was held. The heat transfer and pressure drop for the geometry tested was reported in terms of Colburn factor (j) and Fanning friction factor (f) as a function of the Reynolds number. The experimental results for j and f are in good agreement compared to regression models suggested for compact heat exchanger with louvered fin and flat tubes, obtaining a deviation of 5.48% and 5.39% respectively. Moreover, when compared to CFD analysis for the same geometry, an average deviation of 6.3% is obtained. Finally a regression model for j and f factors was attained based on the Reynolds number, presenting a deviation of 1.51% and 2.19% respectively.
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| first_indexed | 2024-04-09T22:08:15Z |
| format | Article |
| id | doaj.art-60224a1ed4dc4ff6a9a421d801f76e7f |
| institution | Directory Open Access Journal |
| issn | 0120-6230 2422-2844 |
| language | English |
| last_indexed | 2024-04-09T22:08:15Z |
| publishDate | 2015-02-01 |
| publisher | Universidad de Antioquia |
| record_format | Article |
| series | Revista Facultad de Ingeniería Universidad de Antioquia |
| spelling | doaj.art-60224a1ed4dc4ff6a9a421d801f76e7f2023-03-23T12:31:25ZengUniversidad de AntioquiaRevista Facultad de Ingeniería Universidad de Antioquia0120-62302422-28442015-02-017410.17533/udea.redin.19136Experimental characterization of thermal hydraulic performance of louvered brazed plate fin heat exchangersAntonio Bula-Silvera0John Turizo-Santos1Oscar Barros-Ballesteros2Armando Fontalvo-Lascano3Ricardo Vasquez-Padilla4Northern UniversityNorthern UniversityNorthern UniversityNorthern UniversityNorthern University Louvered fins are commonly used in compact heat exchangers to increase the surface area, turbulence, and initiate new boundary layer growth required to improve the heat transfer performance without a significant increase in pressure drop compared with other fins. An experimental study on the air side heat transfer and pressure drop characteristics for a louvered fin with symmetrical pattern in brazed plate heat exchangers has been performed. Reynolds numbers ranged from 350 – 1270, based on the louver pitch while a constant 1.82 m3/h water flow was held. The heat transfer and pressure drop for the geometry tested was reported in terms of Colburn factor (j) and Fanning friction factor (f) as a function of the Reynolds number. The experimental results for j and f are in good agreement compared to regression models suggested for compact heat exchanger with louvered fin and flat tubes, obtaining a deviation of 5.48% and 5.39% respectively. Moreover, when compared to CFD analysis for the same geometry, an average deviation of 6.3% is obtained. Finally a regression model for j and f factors was attained based on the Reynolds number, presenting a deviation of 1.51% and 2.19% respectively. https://revistas.udea.edu.co/index.php/ingenieria/article/view/19136compact heat exchangerlouvered finsColburn factorFanning factor |
| spellingShingle | Antonio Bula-Silvera John Turizo-Santos Oscar Barros-Ballesteros Armando Fontalvo-Lascano Ricardo Vasquez-Padilla Experimental characterization of thermal hydraulic performance of louvered brazed plate fin heat exchangers Revista Facultad de Ingeniería Universidad de Antioquia compact heat exchanger louvered fins Colburn factor Fanning factor |
| title | Experimental characterization of thermal hydraulic performance of louvered brazed plate fin heat exchangers |
| title_full | Experimental characterization of thermal hydraulic performance of louvered brazed plate fin heat exchangers |
| title_fullStr | Experimental characterization of thermal hydraulic performance of louvered brazed plate fin heat exchangers |
| title_full_unstemmed | Experimental characterization of thermal hydraulic performance of louvered brazed plate fin heat exchangers |
| title_short | Experimental characterization of thermal hydraulic performance of louvered brazed plate fin heat exchangers |
| title_sort | experimental characterization of thermal hydraulic performance of louvered brazed plate fin heat exchangers |
| topic | compact heat exchanger louvered fins Colburn factor Fanning factor |
| url | https://revistas.udea.edu.co/index.php/ingenieria/article/view/19136 |
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