Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles
This article presents heat transfer and fluid flow characteristics in a solar air heater (SAH) channel with multi V-type perforated baffles. The flow passage has an aspect ratio of 10. The relative baffle height, relative pitch, relative baffle hole position, flow attack angle, and baffle open area...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-07-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/9/7/564 |
| _version_ | 1818001326949269504 |
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| author | Anil Kumar Man-Hoe Kim |
| author_facet | Anil Kumar Man-Hoe Kim |
| author_sort | Anil Kumar |
| collection | DOAJ |
| description | This article presents heat transfer and fluid flow characteristics in a solar air heater (SAH) channel with multi V-type perforated baffles. The flow passage has an aspect ratio of 10. The relative baffle height, relative pitch, relative baffle hole position, flow attack angle, and baffle open area ratio are 0.6, 8.0, 0.42, 60°, and 12%, respectively. The Reynolds numbers considered in the study was in the range of 3000–10,000. The re-normalization group (RNG) k-ε turbulence model has been used for numerical analysis, and the optimum relative baffle width has been investigated considering relative baffle widths of 1.0–7.0.The numerical results are in good agreement with the experimental data for the range considered in the study. Multi V-type perforated baffles are shown to have better thermal performance as compared to other baffle shapes in a rectangular passage. The overall thermal hydraulic performance shows the maximum value at the relative baffle width of 5.0. |
| first_indexed | 2024-04-14T03:32:58Z |
| format | Article |
| id | doaj.art-79dfa00221364ceabffea953ac77bff9 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T03:32:58Z |
| publishDate | 2016-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-79dfa00221364ceabffea953ac77bff92022-12-22T02:14:53ZengMDPI AGEnergies1996-10732016-07-019756410.3390/en9070564en9070564Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated BafflesAnil Kumar0Man-Hoe Kim1School of Mechanical Engineering, Kyungpook National University, Daegu 41566, KoreaSchool of Mechanical Engineering, Kyungpook National University, Daegu 41566, KoreaThis article presents heat transfer and fluid flow characteristics in a solar air heater (SAH) channel with multi V-type perforated baffles. The flow passage has an aspect ratio of 10. The relative baffle height, relative pitch, relative baffle hole position, flow attack angle, and baffle open area ratio are 0.6, 8.0, 0.42, 60°, and 12%, respectively. The Reynolds numbers considered in the study was in the range of 3000–10,000. The re-normalization group (RNG) k-ε turbulence model has been used for numerical analysis, and the optimum relative baffle width has been investigated considering relative baffle widths of 1.0–7.0.The numerical results are in good agreement with the experimental data for the range considered in the study. Multi V-type perforated baffles are shown to have better thermal performance as compared to other baffle shapes in a rectangular passage. The overall thermal hydraulic performance shows the maximum value at the relative baffle width of 5.0.http://www.mdpi.com/1996-1073/9/7/564solar energyheat transfer enhancementfriction factorsolar air heater (SAH) channelperforated baffle |
| spellingShingle | Anil Kumar Man-Hoe Kim Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles Energies solar energy heat transfer enhancement friction factor solar air heater (SAH) channel perforated baffle |
| title | Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles |
| title_full | Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles |
| title_fullStr | Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles |
| title_full_unstemmed | Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles |
| title_short | Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles |
| title_sort | thermal hydraulic performance in a solar air heater channel with multi v type perforated baffles |
| topic | solar energy heat transfer enhancement friction factor solar air heater (SAH) channel perforated baffle |
| url | http://www.mdpi.com/1996-1073/9/7/564 |
| work_keys_str_mv | AT anilkumar thermalhydraulicperformanceinasolarairheaterchannelwithmultivtypeperforatedbaffles AT manhoekim thermalhydraulicperformanceinasolarairheaterchannelwithmultivtypeperforatedbaffles |