Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached Fins
The study of the heat transfer of solar air heaters with a new design using an absorbing plate with fins and baffles, which facilitate the recycling of flowing air, is reported. The mathematical formulation and analytical analysis for such a recyclic baffled double-pass solar air heater were develop...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2013-03-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/6/4/1821 |
| _version_ | 1811303141745885184 |
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| author | Chun Sheng Lin Rei Chi Wang Hsuan Chang Chii Dong Ho |
| author_facet | Chun Sheng Lin Rei Chi Wang Hsuan Chang Chii Dong Ho |
| author_sort | Chun Sheng Lin |
| collection | DOAJ |
| description | The study of the heat transfer of solar air heaters with a new design using an absorbing plate with fins and baffles, which facilitate the recycling of flowing air, is reported. The mathematical formulation and analytical analysis for such a recyclic baffled double-pass solar air heater were developed theoretically. The performance of the device was studied experimentally as well. The theoretical predicted and experimental results were compared with another design, i.e., a downward-type single-pass solar air heater without recycle and double-pass operations reported in our previous work. Significant improvement in heat-transfer efficiency is achieved with the baffle and fin design due to the recycling heating and the extended heat transfer area. The effects of mass flow rate and recycle ratio on the heat-transfer efficiency enhancement as well as on the power consumption increment are also discussed. |
| first_indexed | 2024-04-13T07:41:29Z |
| format | Article |
| id | doaj.art-8495b859969c4f5aafba2100f105ae9f |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T07:41:29Z |
| publishDate | 2013-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-8495b859969c4f5aafba2100f105ae9f2022-12-22T02:55:52ZengMDPI AGEnergies1996-10732013-03-01641821184210.3390/en6041821Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached FinsChun Sheng LinRei Chi WangHsuan ChangChii Dong HoThe study of the heat transfer of solar air heaters with a new design using an absorbing plate with fins and baffles, which facilitate the recycling of flowing air, is reported. The mathematical formulation and analytical analysis for such a recyclic baffled double-pass solar air heater were developed theoretically. The performance of the device was studied experimentally as well. The theoretical predicted and experimental results were compared with another design, i.e., a downward-type single-pass solar air heater without recycle and double-pass operations reported in our previous work. Significant improvement in heat-transfer efficiency is achieved with the baffle and fin design due to the recycling heating and the extended heat transfer area. The effects of mass flow rate and recycle ratio on the heat-transfer efficiency enhancement as well as on the power consumption increment are also discussed.http://www.mdpi.com/1996-1073/6/4/1821heat-transfer efficiencydouble-passsolar air heaterfins attachedbaffles |
| spellingShingle | Chun Sheng Lin Rei Chi Wang Hsuan Chang Chii Dong Ho Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached Fins Energies heat-transfer efficiency double-pass solar air heater fins attached baffles |
| title | Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached Fins |
| title_full | Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached Fins |
| title_fullStr | Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached Fins |
| title_full_unstemmed | Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached Fins |
| title_short | Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached Fins |
| title_sort | analytical and experimental study of recycling baffled double pass solar air heaters with attached fins |
| topic | heat-transfer efficiency double-pass solar air heater fins attached baffles |
| url | http://www.mdpi.com/1996-1073/6/4/1821 |
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