Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air Collectors
The device performance of cross-corrugated double-pass solar air heaters under external recycle conditions was investigated experimentally and theoretically, and solved numerically using the Newton method. Comparisons were made and represented graphically among three different configurations of the...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-02-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/11/2/338 |
| _version_ | 1828151458112995328 |
|---|---|
| author | Chii-Dong Ho Hsuan Chang Ching-Fang Hsiao Chien-Chang Huang |
| author_facet | Chii-Dong Ho Hsuan Chang Ching-Fang Hsiao Chien-Chang Huang |
| author_sort | Chii-Dong Ho |
| collection | DOAJ |
| description | The device performance of cross-corrugated double-pass solar air heaters under external recycle conditions was investigated experimentally and theoretically, and solved numerically using the Newton method. Comparisons were made and represented graphically among three different configurations of the single-pass, flat-plate double-pass and cross-corrugated double-pass devices. Air flowing simultaneously over the wavelike corrugated absorbing plate and in-between both wavelike cross-corrugated absorbing and transverse bottom plates was conducted under double-pass operations. A considerable heat-transfer efficiency enhancement is obtained employing such a recycling double pass device with welding cross-corrugated absorbing plates, instead of using the flat-plate device. An effective thermal performance was achieved because the heat transfer area is doubled and the turbulent intensity is enhanced as well. The power consumption increment owing to the reduction in the cross-sectional area was taken into account associated with the heat-transfer efficiency enhancement for comparisons in determining the optimal design on an economic consideration for the recycling cross-corrugated double-pass device. |
| first_indexed | 2024-04-11T21:57:08Z |
| format | Article |
| id | doaj.art-db54184631b748ae805a35469f868e5c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T21:57:08Z |
| publishDate | 2018-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-db54184631b748ae805a35469f868e5c2022-12-22T04:01:04ZengMDPI AGEnergies1996-10732018-02-0111233810.3390/en11020338en11020338Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air CollectorsChii-Dong Ho0Hsuan Chang1Ching-Fang Hsiao2Chien-Chang Huang3Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Tamsui, New Taipei 251, TaiwanEnergy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Tamsui, New Taipei 251, TaiwanEnergy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Tamsui, New Taipei 251, TaiwanEnergy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Tamsui, New Taipei 251, TaiwanThe device performance of cross-corrugated double-pass solar air heaters under external recycle conditions was investigated experimentally and theoretically, and solved numerically using the Newton method. Comparisons were made and represented graphically among three different configurations of the single-pass, flat-plate double-pass and cross-corrugated double-pass devices. Air flowing simultaneously over the wavelike corrugated absorbing plate and in-between both wavelike cross-corrugated absorbing and transverse bottom plates was conducted under double-pass operations. A considerable heat-transfer efficiency enhancement is obtained employing such a recycling double pass device with welding cross-corrugated absorbing plates, instead of using the flat-plate device. An effective thermal performance was achieved because the heat transfer area is doubled and the turbulent intensity is enhanced as well. The power consumption increment owing to the reduction in the cross-sectional area was taken into account associated with the heat-transfer efficiency enhancement for comparisons in determining the optimal design on an economic consideration for the recycling cross-corrugated double-pass device.http://www.mdpi.com/1996-1073/11/2/338heat-transfer efficiencydouble-passsolar air heaterrecyclecross-corrugated flow channel |
| spellingShingle | Chii-Dong Ho Hsuan Chang Ching-Fang Hsiao Chien-Chang Huang Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air Collectors Energies heat-transfer efficiency double-pass solar air heater recycle cross-corrugated flow channel |
| title | Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air Collectors |
| title_full | Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air Collectors |
| title_fullStr | Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air Collectors |
| title_full_unstemmed | Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air Collectors |
| title_short | Device Performance Improvement of Recycling Double-Pass Cross-Corrugated Solar Air Collectors |
| title_sort | device performance improvement of recycling double pass cross corrugated solar air collectors |
| topic | heat-transfer efficiency double-pass solar air heater recycle cross-corrugated flow channel |
| url | http://www.mdpi.com/1996-1073/11/2/338 |
| work_keys_str_mv | AT chiidongho deviceperformanceimprovementofrecyclingdoublepasscrosscorrugatedsolaraircollectors AT hsuanchang deviceperformanceimprovementofrecyclingdoublepasscrosscorrugatedsolaraircollectors AT chingfanghsiao deviceperformanceimprovementofrecyclingdoublepasscrosscorrugatedsolaraircollectors AT chienchanghuang deviceperformanceimprovementofrecyclingdoublepasscrosscorrugatedsolaraircollectors |