The Thermal Behavior of a Dual-Function Solar Collector Integrated with Building: An Experimental and Numerical Study on the Air Heating Mode
This paper presented a novel solar collector that can work in air or water heating mode depending on the seasonal requirement. The dual-function solar collector (DFSC) integrated with a building as well as a reference building without the DFSC were built to test thermal behavior in passive air heati...
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| Format: | Article |
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MDPI AG
2018-09-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/11/9/2402 |
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| author | Jinwei Ma Qiang Zhao Yuehong Su Jie Ji Wei He Zhongting Hu Tingyong Fang Haitao Wang |
| author_facet | Jinwei Ma Qiang Zhao Yuehong Su Jie Ji Wei He Zhongting Hu Tingyong Fang Haitao Wang |
| author_sort | Jinwei Ma |
| collection | DOAJ |
| description | This paper presented a novel solar collector that can work in air or water heating mode depending on the seasonal requirement. The dual-function solar collector (DFSC) integrated with a building as well as a reference building without the DFSC were built to test thermal behavior in passive air heating mode during winter. The buildings were equipped with an apparatus to control the room temperature. During the testing procedure, experimental study on the DFSC system was carried out under two conditions, where the indoor temperature was controlled and non-controlled. The results showed that the average temperature of the test room was about 3.43 °C higher than that of the reference room under the non-controlled condition. When the room temperature was controlled at 18 °C, the power consumptions of the test room and reference room were 4.322 kWh and 7.796 kWh, respectively. Consequently, the corresponding daily power consumption saved could reach up to around 3.5 kWh. Moreover, a dynamic numerical model on the DFSC along with the building was developed taking the fin effect of the Cu-tubes into account. The numerical results are found to be well consistent with the measured data. A parametric study on with/without Cu-tubes and depth of the air channel was carried out. It is found that the existing Cu-tubes functioning as water heating can enhance the air heating efficiency when the depth of air channel is of a suitable size. |
| first_indexed | 2024-04-12T05:39:16Z |
| format | Article |
| id | doaj.art-d131ae7ec6bb430d85e4e831ec9bb267 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-12T05:39:16Z |
| publishDate | 2018-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-d131ae7ec6bb430d85e4e831ec9bb2672022-12-22T03:45:43ZengMDPI AGEnergies1996-10732018-09-01119240210.3390/en11092402en11092402The Thermal Behavior of a Dual-Function Solar Collector Integrated with Building: An Experimental and Numerical Study on the Air Heating ModeJinwei Ma0Qiang Zhao1Yuehong Su2Jie Ji3Wei He4Zhongting Hu5Tingyong Fang6Haitao Wang7School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, ChinaSchool of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, ChinaDepartment of Architecture and Built Environment, University of Nottingham, Nottingham NG7 2RD, UKDepartment of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, ChinaDepartment of Building Environment and Equipment, Hefei University of Technology, Hefei 230009, ChinaDepartment of Building Environment and Equipment, Hefei University of Technology, Hefei 230009, ChinaAnhui Province Key Laboratory of Intelligent Building & Building Energy Saving, Hefei 230601, ChinaAnhui Province Key Laboratory of Intelligent Building & Building Energy Saving, Hefei 230601, ChinaThis paper presented a novel solar collector that can work in air or water heating mode depending on the seasonal requirement. The dual-function solar collector (DFSC) integrated with a building as well as a reference building without the DFSC were built to test thermal behavior in passive air heating mode during winter. The buildings were equipped with an apparatus to control the room temperature. During the testing procedure, experimental study on the DFSC system was carried out under two conditions, where the indoor temperature was controlled and non-controlled. The results showed that the average temperature of the test room was about 3.43 °C higher than that of the reference room under the non-controlled condition. When the room temperature was controlled at 18 °C, the power consumptions of the test room and reference room were 4.322 kWh and 7.796 kWh, respectively. Consequently, the corresponding daily power consumption saved could reach up to around 3.5 kWh. Moreover, a dynamic numerical model on the DFSC along with the building was developed taking the fin effect of the Cu-tubes into account. The numerical results are found to be well consistent with the measured data. A parametric study on with/without Cu-tubes and depth of the air channel was carried out. It is found that the existing Cu-tubes functioning as water heating can enhance the air heating efficiency when the depth of air channel is of a suitable size.http://www.mdpi.com/1996-1073/11/9/2402flat plate solar collectordual-functionpassive air heatingnumerical modeling |
| spellingShingle | Jinwei Ma Qiang Zhao Yuehong Su Jie Ji Wei He Zhongting Hu Tingyong Fang Haitao Wang The Thermal Behavior of a Dual-Function Solar Collector Integrated with Building: An Experimental and Numerical Study on the Air Heating Mode Energies flat plate solar collector dual-function passive air heating numerical modeling |
| title | The Thermal Behavior of a Dual-Function Solar Collector Integrated with Building: An Experimental and Numerical Study on the Air Heating Mode |
| title_full | The Thermal Behavior of a Dual-Function Solar Collector Integrated with Building: An Experimental and Numerical Study on the Air Heating Mode |
| title_fullStr | The Thermal Behavior of a Dual-Function Solar Collector Integrated with Building: An Experimental and Numerical Study on the Air Heating Mode |
| title_full_unstemmed | The Thermal Behavior of a Dual-Function Solar Collector Integrated with Building: An Experimental and Numerical Study on the Air Heating Mode |
| title_short | The Thermal Behavior of a Dual-Function Solar Collector Integrated with Building: An Experimental and Numerical Study on the Air Heating Mode |
| title_sort | thermal behavior of a dual function solar collector integrated with building an experimental and numerical study on the air heating mode |
| topic | flat plate solar collector dual-function passive air heating numerical modeling |
| url | http://www.mdpi.com/1996-1073/11/9/2402 |
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